abacoides, Unio abacoides Haldeman, 1846 - syn of: Dromus dromas (Lea, 1834)
abbevillensis, Unio abbevillensis Lea, 1857
abbreviata, Lithodomina abbreviata Waagen, 1881 † (FOSSIL)
abbreviatus, Unio abbreviatus Westerlund, 1897 - syn of: Nodularia douglasiae (Gray, 1834)
aberrans, Unio aberrans Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
aberti, Cyprogenia aberti (Conrad, 1850)
abeuensis, Mujanaia abeuensis Delvene, Munt & al., 2016 † (FOSSIL)
abnormis, Unio abnormis Parmalee & Bogan, 1998 - syn of: Epioblasma torulosa (Rafinesque, 1820)
abrantesianus, Unio abrantesianus Locard, 1899
abrupta, Lampsilis abrupta Say, 1831
abyssinicus, Unio abyssinicus Von Martens, 1866
acrorrhyncha, Lanceolaria acrorrhyncha (Von Martens, 1894)
acuminata, Nitia acuminata (Adams, 1866)
acutirostris, Unio acutirostris Lea, 1866 - syn of: Diplodon parallelopipedon (Lea, 1834)
acutissimus, Medionidus acutissimus (Lea, 1831)
acutus, Unio acutus Rossmässler, 1837 - syn of: Unio crassus Philipsson, 1788
acutus, Unio acutus Sowerby, 1821 † - syn of: Carbonicola acuta (Sowerby, 1821) † (FOSSIL)
acyrta, Anodonta acyrta Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
adamii, Anodonta adamii Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
adansonii, Anodonta adansonii Gray, 1825 - syn of: Mutela dubia Gmelin, 1793
adonus, Unio adonus Servain, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
adotymensys, Buldowskia adotymensys Labay & Shulga, 1999 - syn of: Anemina arcaeformis (Heude, 1877)
adusta, Anodonta adusta Drouët, 1894 - syn of: Anodonta cygnea (Linnaeus, 1758)
aegyptiaca, Coelatura aegyptiaca (Cailliaud, 1827)
aegyptiaca chudeaui, Coelatura aegyptiaca chudeaui Germain, 1906
aegyptiaca juliani, Coelatura aegyptiaca juliani Rang, 1863
aegyptiaca koehleri, Coelatura aegyptiaca koehleri Germain, 1909
aegyptiaca lacoini, Coelatura aegyptiaca lacoini Germain, 1906
aegyptiaca mandinguorum, Coelatura aegyptiaca mandinguorum Rochebrune, 1882
aeneolina, Anodonta aeneolina Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
aeneolus, Pseudodon aeneolus Drouët & Chaper, 1892
aequatorius, Unio aequatorius Morelet, 1885 - syn of: Coelatura gabonensis (Küster, 1862)
aequatorius minor, Unio aequatorius minor Germain, 1907 - syn of: Coelatura gabonensis minor Germain, 1907
aereus, Unio aereus Reeve, 1865 - syn of: Popenaias metallica (Say, 1831)
aeruginosa, Nephronaias aeruginosa (Morelet, 1849)
aesopus, Plethobasus aesopus Green, 1827 - syn of: Plethobasus cyphyus (Rafinesque, 1820)
aethiopiformis, Unio aethiopiformis Simpson, 1900 - syn of: Rhipidodonta charruana aethiopiformis Simpson, 1900
aethiops, Unio aethiops Lea, 1860 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
aethiops piracicabana, Unio aethiops piracicabana Ihering, 1893 - syn of: Diplodon expansus (Küster, 1853)
aferula, Unio aferula Lea, 1864 - syn of: Nyassunio nyassaensis (Lea, 1864)
afferulus, Unio afferulus Johnson, 1974 - syn of: Nyassunio nyassaensis (Lea, 1864)
affinis, Unio affinis Heude, 1875 - syn of: Lamprotula similaris (Simpson, 1900)
agadesensis, Tuaregunio agadesensis (Mongin, 1963) † (FOSSIL)
agadesensis, Lampsilis agadesensis Mongin, 1963 † - syn of: Tuaregunio agadesensis (Mongin, 1963) † (FOSSIL)
agricolarum, Anodon agricolarum Heude, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
ahenea, Elliptio ahenea Lea, 1843
ahlstedti, Epioblasma ahlstedti Jones & Neves, 2010
alabamensis, Lasmigona complanata alabamensis Clarke
alabamensis, Unio alabamensis Conrad, 1834 - syn of: Potamilus inflatus (Lea, 1831)
alabamensis, Strophitus alabamensis Lea, 1861 - syn of: Strophitus connasaugaensis (Lea, 1858)
alacer, Anodonta alacer Bourguignat, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
alatus, Potamilus alatus (Say, 1817)
albovicensis, Unio albovicensis Locard, 1893 - syn of: Unio tumidus Retzius, 1788
aldemaricus, Unio aldemaricus Bourguignat, 1889 - syn of: Unio tumidus Retzius, 1788
aldrichi, Pleurobema aldrichi Frierson, 1927 - syn of: Pleurobema taitianum Lea, 1834
aldrichianum, Pleurobema aldrichianum Goodrich, 1931 - syn of: Pleurobema hanleyianum Lea, 1852
aleronii, Unio aleronii Companyo & Massot, 1845 - syn of: Unio mancus Lamarck, 1819
alienigenus, Unio alienigenus Crosse & Fischer, 1894 - syn of: Cyrtonaias umbrosa (Lea, 1856)
aligera, Lepidodesma aligera (Heude, 1877)
alimovi, Arsenievinaia alimovi Bogatov & Zatrawkin, 1988 - syn of: Sinanodonta woodiana (Lea, 1834)
alleniana, Anodonta alleniana Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
allenianus, Unio allenianus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
alluaudi, Coelatura alluaudi (Dautzenberg, 1908)
alpecanus, Unio alpecanus Bourguignat, 1882 - syn of: Unio tumidus Retzius, 1788
alseria, Anodonta alseria Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
altilis, Hamiota altilis (Conrad, 1834)
altum, Pleurobema altum Conrad, 1854
amazonensis, Anodonta amazonensis Lea, 1860 - syn of: Anodontites trigona amazonensis (Lea, 1860)
ambiella, Anodonta ambiella Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
ambigua, Simpsoniconcha ambigua (Say, 1825)
ambiguus, Unio ambiguus Küster, 1861 - syn of: Castalia ambigua (Lamarck, 1819)
ambiguus, Unio ambiguus Sowerby & Sowerby, 1823 - syn of: Castalia ambigua (Lamarck, 1819)
ambrosiana, Anodonta ambrosiana Adami, 1886 - syn of: Anodonta cygnea (Linnaeus, 1758)
amethystus, Anodon amethystus Sowerby, 1869 - syn of: Anodontites elongata (Swainson, 1823)
amnica, Anodonta amnica Drouët, 1888 - syn of: Anodonta anatina (Linnaeus, 1758)
amnicus, Unio amnicus Rossmässler, 1836 - syn of: Unio crassus Philipsson, 1788
amphichaena, Leptodea amphichaena Frierson, 1898
amphichaenus, Unio amphichaenus Frierson, 1898 - syn of: Leptodea amphichaena Frierson, 1898
amplus, Unio amplus Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
ampullaceus, Unio ampullaceus Lea, 1866 - syn of: Diplodon wymanii (Lea, 1860)
ampullaceus, Unio ampullaceus Locard, 1893 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
amurensis, Anodonta amurensis Moskvicheva, 1973 - syn of: Sinanodonta woodiana (Lea, 1834)
amygdala, Villosa amygdala (Lea, 1843)
anataria, Anodonta anataria De Cristofori & Jan, 1832 - syn of: Chambardia rubens (Lamarck, 1819)
anatina, Anodonta anatina (Linnaeus, 1758)
anatina, Anodonta anatina Brown, 1845 - syn of: Anodonta cygnea (Linnaeus, 1758)
anatina, Anodonta anatina Clessin, 1876 - syn of: Anodonta cygnea (Linnaeus, 1758)
anatina, Anodonta anatina Stabile, 1845 - syn of: Anodonta cygnea (Linnaeus, 1758)
anatina elongata, Anodonta anatina elongata Brot, 1867 - syn of: Anodonta cygnea (Linnaeus, 1758)
anatina major, Anodonta anatina major Brot, 1867 - syn of: Anodonta cygnea (Linnaeus, 1758)
anatina monstrosa, Anodonta anatina monstrosa Brot, 1867 - syn of: Anodonta cygnea (Linnaeus, 1758)
anatina petshorica, Anodonta anatina petshorica Zhadin, 1938 - syn of: Anodonta anatina (Linnaeus, 1758)
anatina platyrhyncha, Anodonta anatina platyrhyncha Westerlund, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
anatina rostrata, Anodonta anatina rostrata Brot, 1867 - syn of: Anodonta cygnea (Linnaeus, 1758)
anceps, Unio anceps Deshayes, 1875 - syn of: Contradens gratiosus (Philippi, 1845)
anceyi, Brazzaea anceyi Bourguignat, 1885
andegavensis, Unio andegavensis Servain, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
andeliacus, Unio andeliacus Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
andersonensis, Unio andersonensis Lea, 1872 - syn of: Fusconaia cor (Conrad, 1834)
andersoni, Unio andersoni Hudson, 1963 † (FOSSIL)
andersoniana, Radiatula andersoniana (Nevill, 1877)
andrewsae, Quadrula andrewsae Marsh, 1902 - syn of: Fusconaia subrotunda (Lea, 1831)
anemprosthus, Unio anemprosthus Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
anemprostus, Unio anemprostus Westerlund, 1890 - syn of: Unio terminalis Bourguignat, 1852
angasana, Alasmodon angasana Adams & Angas, 1863 - syn of: Velesunio angasi (Sowerby, 1867)
angasi, Unio angasi Smith, 1881 - syn of: Alathyria pertexta Iredale, 1934
angasi, Unio angasi Sowerby, 1867 - syn of: Velesunio angasi (Sowerby, 1867)
angoniensis, Unio angoniensis Preston, 1910 - syn of: Coelatura mossambicensis (Von Martens, 1860)
angula, Anemina angula (Tchang, Li & Liu, 1965)
angulata, Gonidea angulata (Lea, 1838)
angulata haroldiana, Gonidea angulata haroldiana Dall, 1908 - syn of: Gonidea angulata (Lea, 1838)
angulata subangulata, Anodonta angulata subangulata Hemphill, 1891 - syn of: Gonidea angulata (Lea, 1838)
angustata, Anodonta angustata Clessin, 1876 - syn of: Anodontites trapesialis (Lamarck, 1818)
angustata, Elliptio angustata Lea, 1831
angustifrons, Anodontoides angustifrons (McCoy, 1851) † (FOSSIL)
angustifrons, Anodontopsis angustifrons McCoy, 1851 † - syn of: Anodontoides angustifrons (McCoy, 1851) † (FOSSIL)
annandalei, Parreysia annandalei Preston, 1912
annesiaca, Anodonta annesiaca Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
annulatus, Anodon annulatus Sowerby, 1867 - syn of: Strophitus undulatus (Say, 1817)
anodontinum, Pseudodon anodontinum Rochebrune, 1881 - syn of: Pseudodon mouhoti Lea, 1863
anodontoides, Lampsilis anodontoides Lea, 1834 - syn of: Lampsilis teres Rafinesque, 1820
anodontoides, Lampsilis teres anodontoides Rafinesque
anodontoides floridensis, Lampsilis anodontoides floridensis Lea, 1857 - syn of: Lampsilis floridensis (Lea, 1857)
anserinus, Anodon anserinus Spix & Wagner, 1827 - syn of: Anodontites trapesialis (Lamarck, 1818)
anthonyi, Unio anthonyi Lea, 1861 - syn of: Elliptio monroensis Lea, 1843
antimoquinianus, Unio antimoquinianus Locard, 1889 - syn of: Unio mancus Lamarck, 1819
antinoriana, Anodonta antinoriana Bourguignat, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
antiochianus, Unio antiochianus Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
antipiscinalis, Anodonta antipiscinalis Bourguignat, 1884 - syn of: Anodonta cygnea (Linnaeus, 1758)
anura, Anodonta anura Westerlund, 1898 - syn of: Anodonta cygnea (Linnaeus, 1758)
anxurensis, Anodonta anxurensis Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
apala, Anodonta apala Locard, 1899 - syn of: Anodonta cygnea (Linnaeus, 1758)
apicellatus, Unio apicellatus Heude, 1883 - syn of: Ptychorhynchus murinum (Heude, 1883)
apicinus, Unio apicinus Lea, 1857 - syn of: Villosa lienosa (Conrad, 1834)
apiculata, Quadrula apiculata Say, 1829
aplatus, Unio aplatus Reeve, 1865 - syn of: Diplodon chilensis (Gray, 1852)
apollonicum, Anodonta apollonicum Bourguignat, 1880 - syn of: Anodonta anatina (Linnaeus, 1758)
apprimus, Unio apprimus Lea, 1866 - syn of: Diplodon wymanii apprimus (Lea, 1866)
aquatica, Anodonta aquatica Servain, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
aquila, Elliptio aquila (Lea, 1857)
aquilus, Unio aquilus Lea, 1857 - syn of: Elliptio pullata (Lea, 1856)
araneosa, Zairia araneosa Rochebrune, 1886 - syn of: Coelatura gabonensis (Küster, 1862)
araris, Unio araris Barbier, 0 - syn of: Pseudunio auricularius (Spengler, 1793)
arata, Micronaias arata (Lea, 1845)
aratus, Unio aratus Von Martens, 1900 - syn of: Micronaias granadensis (Lea, 1868)
araucanus, Unio araucanus Philippi, 1847 - syn of: Diplodon chilensis (Gray, 1852)
araxenus, Unio araxenus Drouët, 1881 - syn of: Unio crassus Philipsson, 1788
arca, Elliptio arca Conrad, 1834
arcaeformis, Anemina arcaeformis (Heude, 1877)
arcaeformis, Epioblasma arcaeformis (Lea, 1831)
arcaeformis flavotincta, Anemina arcaeformis flavotincta (Von Martens, 1905)
arcaeformis sujfunica, Anodonta arcaeformis sujfunica Lindholm, 1925 - syn of: Anemina arcaeformis (Heude, 1877)
archeri, Amphinaias archeri Frierson, 1905 - syn of: Amphinaias asperata (Lea, 1861)
arctata, Elliptio arctata Conrad, 1834
arctatus, Unio arctatus Férussac, 1835 - syn of: Elliptio dilatata Rafinesque, 1820
arctior, Unio arctior Lea, 1838 - syn of: Elliptio dilatata Rafinesque, 1820
arctior fisheropsis, Unio arctior fisheropsis De Gregorio, 1914 - syn of: Elliptio lanceolata Lea, 1827
arcuata, Anodonta arcuata Cailliaud, 1823 - syn of: Chambardia rubens (Lamarck, 1819)
arcuatus, Unio arcuatus Bouchard-Chantereaux, 1838
arcula, Alasmidonta arcula Lea, 1838
arealis, Anodonta arealis Küster, 1842 - syn of: Anodonta cygnea (Linnaeus, 1758)
arelatensis, Anodonta arelatensis Dupuy, 1850 - syn of: Anodonta cygnea (Linnaeus, 1758)
arenarum, Unio arenarum Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
areolatus, Anodon areolatus Swainson, 1829 - syn of: Strophitus undulatus (Say, 1817)
argentea, Anodonta argentea Lea, 1840 - syn of: Anodontoides ferussacianus (Lea, 1834)
argenteum, Pleurobema oviforme argenteum Lea
aristidis, Anodonta aristidis Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
arkansasensis, Obovaria arkansasensis (Lea, 1862)
arkansensis, Anodonta arkansensis Lea, 1852 - syn of: Strophitus undulatus (Say, 1817)
armeniacus, Potomida armeniacus Kobelt, 1912 - syn of: Potomida littoralis (Cuvier, 1798)
armenica, Anodonta armenica Ovtschinnikov, 1935 - syn of: Anodonta cygnea (Linnaeus, 1758)
arrosa, Anodonta arrosa Locard, 1899 - syn of: Anodonta cygnea (Linnaeus, 1758)
arsenievi, Middendorffinaia arsenievi Moskvicheva & Starobogatov, 1973 - syn of: Unio crassus Philipsson, 1788
arturi, Anodonta arturi Bourguignat, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
ascanius, Unio pictorum ascanius Kobelt
ascia, Contradens contradens ascia Hanley
ascia, Contradens ascia Hanley, 1856 - syn of: Contradens contradens ascia (Hanley, 1856)
askewi, Fusconaia askewi (Marsh, 1896)
asper, Unio asper Lea, 1831 - syn of: Quadrula apiculata Say, 1829
aspera, Quadrula aspera Lea, 1861 - syn of: Quadrula apiculata Say, 1829
asperata, Amphinaias asperata (Lea, 1861)
asperrimus, Unio asperrimus Lea, 1831 - syn of: Quadrula quadrula Rafinesque, 1820
assimilis, Anodonta assimilis Gallenstein, 1852 - syn of: Anodonta cygnea (Linnaeus, 1758)
asterianus, Potomida asterianus Dupuy, 1850 - syn of: Potomida littoralis (Cuvier, 1798)
asturianus, Unio asturianus Delvene & al., 2016 † (FOSSIL)
ataxia, Anodonta ataxia Baichère, 1891 - syn of: Anodonta cygnea (Linnaeus, 1758)
ater, Unio ater Nilsson, 1822 - syn of: Unio crassus Philipsson, 1788
athearni, Pleurobema athearni Gangloff, Williams & Feminella, 2006
atra, Anodonta atra Rafinesque, 1820 - syn of: Anodonta cataracta Say, 1817
atratus, Unio atratus Sowerby, 1839 - syn of: Diplodon chilensis (Gray, 1852)
atromarginatus, Unio atromarginatus Lea, 1840 - syn of: Elliptoideus sloatianus (Lea, 1840)
atropurpurea, Alasmidonta atropurpurea Rafinesque, 1831
atroviolacea, Ellipsaria atroviolacea Rafinesque, 1820 - syn of: Elliptio dilatata Rafinesque, 1820
atrovirens, Anodonta atrovirens Philippi, 1848 - syn of: Anodontites inaequivalva (Lea, 1868)
atrovirens, Unio atrovirens Rossmässler, 1836 - syn of: Unio crassus Philipsson, 1788
atrovirens, Anodonta atrovirens Stabile, 1859 - syn of: Anodonta cygnea (Linnaeus, 1758)
attiai, Unio attiai Cox, 1955 † - syn of: Pleiodon attiai (Cox, 1955) † (FOSSIL)
aturicus, Unio aturicus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
aubreyi, Anodonta aubreyi Preston, 1912 - syn of: Sinanodonta woodiana (Lea, 1834)
aubryi, Anodonta aubryi Heude, 1881 - syn of: Sinanodonta woodiana (Lea, 1834)
aucklandicus, Unio aucklandicus Gray, 1843 - syn of: Echyridella aucklandica (Gray, 1843)
aurata, Anodonta aurata Küster, 1853 - syn of: Sinanodonta woodiana (Lea, 1834)
aurata, Elliptio aurata Rafinesque, 1820 - syn of: Unio abbevillensis Lea, 1857
auratus, Unio auratus Hanley, 1843 - syn of: Diplodon chilensis (Gray, 1852)
auratus, Unio auratus Philippi, 1847 - syn of: Diplodon chilensis (Gray, 1852)
aurea, Amphinaias aurea (Lea, 1859)
aureus, Pseudodon aureus Heude, 1885
auricularius, Unio auricularius Spengler, 1793 - syn of: Pseudunio auricularius (Spengler, 1793)
aurorea, Acuticosta aurorea (Heude, 1883)
australis, Hamiota australis (Simpson, 1900)
australis, Unio australis Küster, 1861 - syn of: Hyridella australis (Lamarck, 1819)
australis, Unio australis Lamarck, 1819 - syn of: Hyridella australis (Lamarck, 1819)
australis, Unio australis Menke, 1843 - syn of: Westralunio carteri Iredale, 1934
australis, Unio australis Philippi, 1848 - syn of: Hyridella australis (Lamarck, 1819)
ava, Pseudodon ava Theobald, 1873 - syn of: Pseudodon avae (Theobald, 1873)
avae, Pseudodon avae (Theobald, 1873)
avellanum, Pleurobema avellanum Simpson, 1900 - syn of: Pleurobema rubellum Conrad, 1834
averyi, Unio averyi Lea, 1859 - syn of: Barynaias caldwellii (Lea, 1858)
aviculaeformis, Prisodontopsis aviculaeformis Woodward, 1991
axiacus, Unio axiacus Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
aztecorum, Nephronaias aztecorum (Philippi, 1847)
bactriana, Anodonta bactriana Rolle, 1897 - syn of: Anodonta cyrea Drouët, 1881
badensis, Unio badensis Haas, 1910 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
badiellus, Unio badiellus Drouët, 1888 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
badius, Unio badius Kokeil, 1831 - syn of: Unio crassus Philipsson, 1788
baeri, Anodonta baeri Bogatov, Starobogatov & Prozorova, 2005 - syn of: Anodonta anatina (Linnaeus, 1758)
baeticus, Unio baeticus Kobelt, 1887 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
bagdadensis, Unio bagdadensis Bourguignat, 1852 - syn of: Coelatura aegyptiaca (Cailliaud, 1827)
bahlikiana, Anodonta bahlikiana Pallary, 1933 - syn of: Anodonta cygnea (Linnaeus, 1758)
bairdianus, Unio bairdianus Lea, 1857 - syn of: Toxolasma texasiensis Lea, 1838
bakeri, Coelatura bakeri (Adams, 1866)
bakhensis, Lithodomina bakhensis Reed, 1944 † (FOSSIL)
bakoyi, Unio bakoyi Rochebrune, 1882 - syn of: Coelatura aegyptiaca (Cailliaud, 1827)
balatonica, Anodonta balatonica Servain, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
balbignyanus, Unio balbignyanus Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
baldwinensis, Unio baldwinensis Lea, 1859 - syn of: Unio abbevillensis Lea, 1857
balonnensis, Unio balonnensis Conrad, 1850 - syn of: Velesunio ambiguus (Philippi, 1847)
bambousearum, Anodon bambousearum Morelet, 1851 - syn of: Anodontites cylindracea (Lea, 1838)
bangoranensis, Unio bangoranensis Germain, 1907 - syn of: Coelatura aegyptiaca (Cailliaud, 1827)
baraceus, Unio baraceus Joannis, 1859 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
barboraeca, Anodonta barboraeca Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
barbosana, Anodonta barbosana Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
barbozana, Anodonta barbozana Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
barbozanus, Unio barbozanus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
bardus, Unio bardus Bourguignat, 1881 - syn of: Unio tumidus Retzius, 1788
barnesiana, Fusconaia barnesiana (Lea, 1829)
barraudi, Potomida barraudi Bonhomme, 1840 - syn of: Potomida littoralis (Cuvier, 1798)
barroisi, Unio barroisi Drouët, 1893 - syn of: Margaritifera homsensis (Lea, 1865)
baryus, Unio baryus Locard, 1889 - syn of: Pseudunio auricularius (Spengler, 1793)
basalis, Unio basalis Lea, 1872 - syn of: Elliptio fumata (Lea, 1857)
batavellus, Unio batavellus Letourneux, 1885 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
batavus, Unio crassus batavus Maton & Rackett
batavus ovatus, Unio batavus ovatus Charpentier, 1837 - syn of: Unio crassus Philipsson, 1788
batavus pusillus, Unio batavus pusillus Rossmässler, 1844 - syn of: Unio crassus Philipsson, 1788
batavus sinuatus, Unio batavus sinuatus Charpentier, 1837 - syn of: Unio crassus Philipsson, 1788
batavus squamosus, Unio batavus squamosus Charpentier, 1837 - syn of: Unio crassus Philipsson, 1788
battonensis, Unio battonensis Kobelt, 1896 - syn of: Unio pictorum (Linnaeus, 1758)
baudoni, Unio baudoni de Folin, 1888 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
baudoniana, Anodonta baudoniana Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
bazini, Lamprotula bazini (Heude, 1877)
beadleiana, Elliptio beadleiana Lea, 1861 - syn of: Pleurobema beadleianum (Lea, 1861)
beadleianum, Pleurobema beadleianum (Lea, 1861)
bealei, Unio bealei Lea, 1862 - syn of: Toxolasma texasiensis Lea, 1838
bealei, Anodonta bealei Lea, 1863 - syn of: Anodonta grandis Say, 1829
beauchampii, Quadrula beauchampii Marsh, 1902 - syn of: Fusconaia subrotunda (Lea, 1831)
beauforti, Unio beauforti Bavay, 1908 - syn of: Velesunio anodontaeformis (Tapparone-Canefri, 1883)
beaverensis, Unio beaverensis Lea, 1868 - syn of: Unio abbevillensis Lea, 1857
bednalli, Unio bednalli Tate, 1882 - syn of: Velesunio angasi (Sowerby, 1867)
beirensis, Cristaria beirensis Liu & Zhang, 1982
bellalensis, Unionelloides bellalensis Van Damme & Bogan, 2015 † (FOSSIL)
bellamyi, Coelatura bellamyi Jousseaume, 1886 - syn of: Coelatura aegyptiaca (Cailliaud, 1827)
bellua, Anodonta bellua Morelet, 1866 - syn of: Cristaria plicata (Leach, 1815)
benedictensis, Symphynota benedictensis Lea, 1834 - syn of: Anodonta grandis Say, 1829
benedictii, Anodonta benedictii Lea, 1870 - syn of: Anodonta grandis Say, 1829
bensonii, Unio bensonii Lea, 1870 - syn of: Solenaia soleniformis (Benson, 1836)
beringiana, Anodonta beringiana (Middendorff, 1851)
beringiana sujfunensis, Anodonta beringiana sujfunensis Zhadin, 1938 - syn of: Anemina arcaeformis (Heude, 1877)
beringiana taranetzi, Anodonta beringiana taranetzi Zhadin, 1938 - syn of: Sinanodonta woodiana (Lea, 1834)
berlandierii, Unio berlandierii Lea, 1857 - syn of: Cyrtonaias tampicoensis (Lea, 1838)
berlani, Alasmodonta berlani Bourguignat, 1870 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
berthellini, Unio berthellini Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
besckeanus, Unio besckeanus Dunker, 1848 - syn of: Diplodon besckeanus (Dunker, 1848)
besnardianus, Unio besnardianus Servain, 1888 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
bhamoensis, Parreysia bhamoensis Theobald, 1873
bialata, Symphynota bialata Lea, 1829 - syn of: Cristaria plicata (Leach, 1815)
bialatus, Hyriopsis bialatus Simpson, 1900
biangularis, Unio biangularis Lea, 1840 - syn of: Actinonaias pectorosa (Conrad, 1834)
biangulata, Quadrula biangulata Morrison, 1942 - syn of: Theliderma intermedia (Conrad, 1836)
biangulata, Anodon biangulata Sowerby, 1869 - syn of: Gonidea angulata (Lea, 1838)
biangulatus, Unio biangulatus Lea, 1842 - syn of: Actinonaias pectorosa (Conrad, 1834)
bicolor, Anodonta bicolor Drouët, 1894 - syn of: Anodonta cygnea (Linnaeus, 1758)
bicolor, Obliquaria bicolor Rafinesque, 1831 - syn of: Elliptio dilatata Rafinesque, 1820
biemarginata, Epioblasma biemarginata Lea, 1857
biesiana, Pseudobaphia biesiana (Heude, 1877)
bigbyensis, Unio bigbyensis Lea, 1841 - syn of: Fusconaia barnesiana (Lea, 1829)
bigerrensis, Potomida bigerrensis Millet, 1843 - syn of: Potomida littoralis (Cuvier, 1798)
bigibba, Anodon bigibba Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
bilirata, Lanceolaria bilirata (Von Martens, 1902)
billottianus, Unio billottianus Charmes, 1885 - syn of: Coelatura ratidota (Charmes, 1885)
biloba, Epioblasma biloba Rafinesque, 1831 - syn of: Epioblasma flexuosa (Rafinesque, 1820)
biloba pallida, Epioblasma biloba pallida Rafinesque, 1831 - syn of: Epioblasma flexuosa (Rafinesque, 1820)
binneyi, Unio binneyi Lea, 1845 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
binominata, Lampsilis binominata Simpson, 1900
birgei, Anodontoides birgei Baker, 1923 - syn of: Anodontoides ferussacianus (Lea, 1834)
bischoffi, Anodonta bischoffi Haas, 1931 - syn of: Anodontites patagonica Lamarck, 1819
bishoffi, Unio bishoffi Simpson, 1900 - syn of: Diplodon expansus (Küster, 1853)
bisulcata, Nkondonaia bisulcata Van Damme & Pickford, 2010 † (FOSSIL)
bitumen, Unio bitumen Cooke, 1919 - syn of: Nephronaias scamnata (Morelet, 1849)
biwae, Nodularia douglasiae biwae Kobelt
biwae, Unio biwae Kobelt, 1879 - syn of: Nodularia douglasiae biwae Kobelt, 1879
blainvilleana, Anodonta blainvilleana Lea, 1835 - syn of: Leila blainvilliana (Lea, 1834)
blaisei, Lamprotula blaisei (Fischer & Dautzenberg, 1905)
blatchleyi, Lampsilis blatchleyi Daniels, 1902 - syn of: Leptodea leptodon (Rafinesque, 1820)
blauneri, Anodonta blauneri Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
bocageana, Anodonta bocageana Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
boettgeri, Anodonta boettgeri Bourguignat, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
boettgeri, Unio boettgeri Neumayr, 1899 - syn of: Nodularia douglasiae (Gray, 1834)
bofilliana, Anodonta bofilliana Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
bogani, Pseudodon bogani Bolotov, Kondakov & Konopleva, 2017
bogani, Lanceolaria bogani Thach, 2016
bogatovi, Lanceolaria bogatovi Zatrawkin & Starobogatov, 1984 - syn of: Lanceolaria cylindrica (Simpson, 1900)
bollii, Unio bollii Call, 1881 - syn of: Amphinaias petrina (Gould, 1855)
boloniensis, Amuranodonta boloniensis Zatrawkin & Bogatov, 1987 - syn of: Anemina arcaeformis (Heude, 1877)
bonelli curvata, Unio bonelli curvata Rossmässler, 1842 - syn of: Microcondylaea compressa (Menke, 1830)
bonellii, Unio bonellii Rossmässler, 1835 - syn of: Microcondylaea compressa (Menke, 1830)
bonellii levicensis, Microcondylaea bonellii levicensis Kobelt, 1913 - syn of: Microcondylaea compressa (Menke, 1830)
bonellii parisii, Microcondylaea bonellii parisii Kobelt, 1913 - syn of: Microcondylaea compressa (Menke, 1830)
bonneaudi, Radiatula bonneaudi (Eydoux, 1838)
bonplandi, Unio bonplandi Humboldt, 1827 - syn of: Diplodon parallelopipedon (Lea, 1834)
borealis, Anodonta borealis Kobelt, 1891 - syn of: Anodonta cygnea (Linnaeus, 1758)
borellii, Unio borellii Ancey, 1894 - syn of: Coelatura mossambicensis (Von Martens, 1860)
borneensis, Ctenodesma borneensis (Issel, 1874)
bouchardi, Unio bouchardi Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
bourgeticus, Unio bourgeticus Locard, 1882 - syn of: Unio mancus Lamarck, 1819
bourguignati, Brazzaea bourguignati Bourguignat, 1886 - syn of: Brazzaea anceyi Bourguignat, 1885
bourguignati, Burtonia bourguignati Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
bourguignati, Grandidieria bourguignati Joubert, 1888 - syn of: Grandidieria burtoni (Woodward, 1859)
bourguignati, Unio bourguignati Laudrin, 1865 - syn of: Coelatura aegyptiaca (Cailliaud, 1827)
bourguignati, Leguminaia bourguignati Locard, 1883 - syn of: Leguminaia wheatleyi (Lea, 1862)
bourguignati, Coelatura bourguignati Rochebrune, 1886 - syn of: Coelatura rotula Pilsbry & Bequaert, 1927
bournianum, Pleurobema bournianum Lea, 1840 - syn of: Pleurobema clava Lamarck, 1819
bouvieri, Anodonta bouvieri Rochebrune, 1904 - syn of: Anodonta cygnea (Linnaeus, 1758)
boykiniana, Magnonaias boykiniana Lea, 1840 - syn of: Magnonaias nervosa (Rafinesque, 1820)
bracteata, Lampsilis bracteata Gould, 1855
brandti, Lamellidens brandti Bolotov, Konopleva & Vikhrev, 2017
brandti, Anodonta brandti Drouët, 1888 - syn of: Anodonta cygnea (Linnaeus, 1758)
brandtii, Inversidens brandtii (Kobelt, 1879)
brebissoni, Unio brebissoni Locard, 1889 - syn of: Unio pictorum (Linnaeus, 1758)
brebissoni, Anodonta brebissoni Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
brevialis, Unio brevialis Crouch, 1827 - syn of: Fusconaia subrotunda (Lea, 1831)
brevialis, Potomida brevialis Lamarck, 1819 - syn of: Potomida littoralis (Cuvier, 1798)
breviculus, Unio breviculus Call, 1887 - syn of: Lampsilis reeveiana (Lea, 1852)
brevidens, Dysnomia brevidens (Lea, 1831)
brevieri, Unio brevieri Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
brevirostris, Unio brevirostris Küster, 1854 - syn of: Unio crassus Philipsson, 1788
brevirostris, Anodonta brevirostris Pini, 1884 - syn of: Anodonta cygnea (Linnaeus, 1758)
briandiana, Anodonta briandiana Servain, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
briarti, Coelatura briarti (Dautzenberg, 1901)
briarti nsendwensis, Unio briarti nsendwensis Putzeys, 0 - syn of: Coelatura briarti (Dautzenberg, 1901)
bridgesii, Anodonta bridgesii Lea, 1868 - syn of: Anodontites trapesialis (Lamarck, 1818)
bridouxi, Brazzaea bridouxi Bourguignat, 1886 - syn of: Brazzaea anceyi Bourguignat, 1885
bridouxi, Burtonia bridouxi Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
brightoni, Unio brightoni Woodward † (FOSSIL)
brimleyi, Unio brimleyi Wright, 1897 - syn of: Fusconaia masoni (Conrad, 1834)
brittsi, Lampsilis brittsi Simpson, 1900 - syn of: Lampsilis reeveiana (Lea, 1852)
brooksiana, Anodonta brooksiana Van Der Schalie, 1938 - syn of: Pyganodon fragilis (Lamarck, 1819)
broti, Unionetta broti (Deshayes & Jullien, 1874)
broti, Anodonta broti Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
browni, Anodonta browni Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
brownianus, Unio brownianus Lea, 1838 - syn of: Prisodon syrmatophorus (Gmelin, 1791)
brownii, Unio brownii Lea, 1856 - syn of: Diplodon delodontus (Lamarck, 1819)
bruguierianus, Unio bruguierianus Bourguignat, 1853 - syn of: Unio crassus Philipsson, 1788
brumbyanus, Unio brumbyanus Lea, 1841 - syn of: Ptychobranchus greenii (Conrad, 1834)
brusinae, Anodonta brusinae Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
buchanensis, Anodonta buchanensis Lea, 1838 - syn of: Anodontoides ferussacianus (Lea, 1834)
buckleyi, Elliptio jayensis buckleyi Lea
buckleyi, Elliptio buckleyi Lea, 1843 - syn of: Elliptio jayensis buckleyi Lea, 1843
buddianus, Unio buddianus Lea, 1843 - syn of: Elliptio jayensis Lea, 1838
buldowskii, Anemina buldowskii Moskvicheva, 1973 - syn of: Anemina arcaeformis (Heude, 1877)
bulloides, Unio bulloides Lea, 1859 - syn of: Rhipidodonta variabilis (Maton, 1811)
burkei, Fusconaia burkei (Ortmann & Walker, 1922)
burkensis, Unio burkensis Lea, 1859 - syn of: Unio abbevillensis Lea, 1857
burmana, Parreysia burmana Blanford, 1869
burmana myitkyinae, Parreysia burmana myitkyinae Prashad, 1930 - syn of: Parreysia burmana Blanford, 1869
burmanus, Lamellidens burmanus Simpson, 1914 - syn of: Lamellidens generosus (Gould, 1847)
burroughianus, Unio burroughianus D'Orbigny, 1835 - syn of: Diplodon parodizi Bonetto, 1962
burroughianus, Unio burroughianus Lea, 1834 - syn of: Rhipidodonta burroughiana (Lea, 1834)
burrowghianus, Unio burrowghianus Lea, 1834 - syn of: Rhipidodonta burroughiana (Lea, 1834)
bursa, Unio bursa Wright, 1896 - syn of: Fusconaia subrotunda (Lea, 1831)
burtoni, Grandidieria burtoni (Woodward, 1859)
burtoni corbicula, Grandidieria burtoni corbicula Bourguignat, 1885
burtoni cyrenopsis, Grandidieria burtoni cyrenopsis Bourguignat, 1885
burtoni elongata, Grandidieria burtoni elongata Bourguignat, 1885
burtoni giraudi, Grandidieria burtoni giraudi Bourguignat, 1885
burtoni granulosa, Grandidieria burtoni granulosa Bourguignat, 1885
burtoni gravida, Grandidieria burtoni gravida Bourguignat, 1885
burtoni incarnata, Grandidieria burtoni incarnata Bourguignat, 1885
burtoni insignis, Grandidieria burtoni insignis Ancey, 1885
burtoni locardiana, Grandidieria burtoni locardiana Bourguignat, 1885
burtoni mira, Grandidieria burtoni mira Bourguignat, 1885
burtoni rhynchonella, Grandidieria burtoni rhynchonella Bourguignat, 1888
burtoni rostrata, Grandidieria burtoni rostrata Bourguignat, 1885
burtoni rotundata, Grandidieria burtoni rotundata Bourguignat, 1885
burtoni servainiana, Grandidieria burtoni servainiana Bourguignat, 1885
burtoni singularis, Grandidieria burtoni singularis Bourguignat, 1888
burtoni smithi, Grandidieria burtoni smithi Bourguignat, 1885
buxeus, Unio buxeus Lea, 1852 - syn of: Elliptio congaraea (Lea, 1831)
buxtoni, Unio buxtoni Wright, 1897 - syn of: Elliptio jayensis Lea, 1838
bythiaeca, Anodonta bythiaeca Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
bythioeca, Anodonta bythioeca Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
byzantina, Anodonta byzantina Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
caerulea, Radiatula caerulea (Lea, 1831)
caffer, Unio caffer (Krauss, 1848)
caffra, Cafferia caffra (Krauss, 1848) - syn of: Unio caffer (Krauss, 1848)
cailliaudii, Unio cailliaudii Lea, 1836 - syn of: Nitia teretiuscula (Philippi, 1847)
cailludi, Anodonta cailludi Lea, 1866 - syn of: Anodontites trapezea (Spix & Wagner, 1827)
caipira, Unio caipira Ihering, 1893 - syn of: Diplodon expansus (Küster, 1853)
calamitarum, Nephronaias calamitarum (Morelet, 1849)
calceolus, Unio calceolus Lea, 1828 - syn of: Alasmidonta viridis Rafinesque, 1820
calderoni, Potomida calderoni Kobelt, 1887 - syn of: Potomida littoralis umbonata Rossmässler, 1844
caldwellii, Barynaias caldwellii (Lea, 1858)
californiensis, Anodonta californiensis Lea, 1852
caliginosus, Unio caliginosus Lea, 1845 - syn of: Villosa lienosa (Conrad, 1834)
calipygos, Anodonta calipygos Kobelt, 1879 - syn of: Sinanodonta woodiana calypigos (Kobelt, 1879)
calipygos humerosa, Anodonta calipygos humerosa Westerlund, 1885 - syn of: Sinanodonta woodiana (Lea, 1834)
callidaea, Anodonta callidaea Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
callista, Grandidieria callista Bourguignat, 1888 - syn of: Grandidieria burtoni (Woodward, 1859)
callosa, Sphenonaias callosa (Lea, 1841)
callosa, Anodonta callosa Küster, 1839 - syn of: Anodonta cygnea (Linnaeus, 1758)
caloosaensis, Unio caloosaensis Dall, 1898 - syn of: Elliptio jayensis Lea, 1838
calypigos, Sinanodonta woodiana calypigos Kobelt
cambodiensis, Physunio cambodiensis (Lea, 1856)
cambodjensis, Pseudodon cambodjensis (Petit De La Saussaye, 1865)
cambodjensis tenerrimus, Pseudodon cambodjensis tenerrimus Brandt, 1974
cameratus, Unio cameratus Drouët, 1893 - syn of: Unio abrantesianus Locard, 1899
camonti, Unio camonti Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
campshystera, Anodonta campshystera Bourguignat, 1886 - syn of: Anodonta cygnea (Linnaeus, 1758)
campylus, Unio campylus Locard, 1889 - syn of: Unio pictorum (Linnaeus, 1758)
cancrorum, Unio cancrorum Bourguignat, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
canefrii, Leoparreysia canefrii Vikhrev, Bolotov & Kondakov, 2017
cantianus, Unio cantianus Kennard & Woodward, 1924 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
capax, Potamilus capax Green, 1832
capelloiana, Anodonta capelloiana Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
caperatus, Unio caperatus Lea, 1845 - syn of: Dromus dromas (Lea, 1834)
capigliolo, Unio capigliolo Küster, 1855 - syn of: Unio crassus Philipsson, 1788
capillaris, Unio capillaris Lea, 1834 - syn of: Epioblasma personata (Say, 1829)
capitata, Anodonta capitata Clessin, 1874 - syn of: Anodonta cygnea (Linnaeus, 1758)
capitatus, Cuneopsis capitatus (Heude)
cappertoni, Anodon cappertoni Sowerby, 1870 - syn of: Chambardia rubens (Lamarck, 1819)
capsaeformis, Dysnomia capsaeformis (Lea, 1834)
capsaeformis, Epioblasma capsaeformis Williams & al., 2008 - syn of: Epioblasma ahlstedti Jones & Neves, 2010
carantoni, Unio carantoni Coutagne, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
caravellus, Unio caravellus Servain, 1887 - syn of: Unio pictorum (Linnaeus, 1758)
carbonarius, Unio carbonarius Lea, 1838 - syn of: Barynaias plexus (Conrad, 1838)
carcasinus, Unio carcasinus Souverbie, 1887 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
cardiiformis, Unio cardiiformis Blanford, 1883 † - syn of: Blanfordinaia cardiiformis (Blanford, 1883) † (FOSSIL)
cardium, Lampsilis cardium Rafinesque, 1820
cariei, Unio cariei Germain, 1919 - syn of: Coelatura aegyptiaca (Cailliaud, 1827)
carinata, Solenaia carinata (Heude, 1877)
carinata, Actinonaias ligamentina carinata Barnes
carinata gibba, Actinonaias carinata gibba Simpson, 1900 - syn of: Actinonaias ligamentina (Lamarck, 1819)
carinata orbis, Actinonaias carinata orbis Morrison, 1942 - syn of: Actinonaias ligamentina (Lamarck, 1819)
carinifera, Pilsbryoconcha carinifera (Conrad, 1837)
carinifera, Unio carinifera Lamarck, 1819 - syn of: Unio abbevillensis Lea, 1857
carinthiacus, Unio carinthiacus Rossmässler, 1836 - syn of: Unio crassus Philipsson, 1788
carioliensis, Unio carioliensis Pacome, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
cariosa, Lampsilis cariosa (Say, 1817)
cariosa, Anodonta cariosa Küster, 1842 - syn of: Anodonta cygnea (Linnaeus, 1758)
cariosa, Unio cariosa Lamarck, 1819 - syn of: Alasmidonta varicosa (Lamarck, 1819)
cariosula, Anodonta cariosula Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
cariosula elongata, Anodonta cariosula elongata Germain, 1904 - syn of: Anodonta cygnea (Linnaeus, 1758)
carneus, Unio carneus Küster, 1854 - syn of: Unio crassus Philipsson, 1788
carolinianus, Uniomerus carolinianus (Bosc, 1801)
carotae, Anodonta carotae Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
carrei, Burtonia carrei Putzeys, 1898 - syn of: Mutela legumen (Rochebrune, 1886)
carteri, Unio carteri Hislop, 1859 † (FOSSIL)
carthagena, Anodonta carthagena Simpson, 1900 - syn of: Anodontites trigona (Spix & Wagner, 1827)
casaeblancae, Unio casaeblancae Philippi, 1848 - syn of: Diplodon chilensis (Gray, 1852)
caspia, Anodonta caspia Bourguignat, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
castanea, Anodon castanea Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
castaneus, Unio castaneus Fitzinger, 1833 - syn of: Unio crassus Philipsson, 1788
castaneus, Unio castaneus Lea, 1831 - syn of: Obovaria arkansasensis (Lea, 1862)
castelnaudii, Anodonta castelnaudii Hupé, 1857 - syn of: Anodontites trigona (Spix & Wagner, 1827)
castelneaui, Harmandia somboriensis castelneaui Rochebrune
castor, Unio castor Eichwald, 1860 † - syn of: Palaeanodonta castor (Eichwald, 1860) † (FOSSIL)
castroi, Unio castroi Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
castus, Unio castus Lea, 1860 - syn of: Fusconaia masoni (Conrad, 1834)
catalaunicus, Unio catalaunicus Coutagne, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
catalonicus, Potomida littoralis catalonicus Haas
cataracta, Anodonta cataracta Say, 1817
cataracta fragilis, Anodonta cataracta fragilis Lamarck, 1819 - syn of: Pyganodon fragilis (Lamarck, 1819)
catawbensis, Unio catawbensis Lea, 1862 - syn of: Unio abbevillensis Lea, 1857
catilllus, Pleurobema cordatum catilllus Conrad
catocyrta, Anodonta catocyrta Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
caudiculatus, Caudiculatus caudiculatus (Von Martens, 1866)
caveata, Lamprotula caveata (Heude, 1877)
cellensis, Anodonta cygnea cellensis Gmelin
cellensis, Anodonta cellensis Kobelt, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
cellensis beringiana, Anodonta cellensis beringiana Middendorff, 1851 - syn of: Anodonta beringiana (Middendorff, 1851)
cellensis micheli, Anodonta cellensis micheli Modell, 1945 - syn of: Anodonta cygnea (Linnaeus, 1758)
celtiformis, Cuneopsis celtiformis (Heude, 1874)
cerina, Fusconaia cerina (Conrad, 1838)
chalcoensis, Anodonta chalcoensis Crosse & Fischer, 1893 - syn of: Anodonta impura Say, 1829
championi, Nephronaias championi (Von Martens, 1900)
chankensis, Lanceolaria chankensis Moskvicheva, 1973 - syn of: Lanceolaria cylindrica (Simpson, 1900)
chantrei, Leguminaia chantrei Locard, 1883 - syn of: Leguminaia wheatleyi (Lea, 1862)
chantrei, Unio chantrei Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
chantrei, Pseudodon chantrei Locard, 1883 - syn of: Leguminaia saulcyi (Bourguignat, 1852)
chapalensis, Anodonta chapalensis Crosse & Fischer, 1893 - syn of: Anodonta impura Say, 1829
chaperi, Pseudodon chaperi (Morgan, 1885)
charbonnieri, Unio charbonnieri Bourguignat, 1886 - syn of: Coelatura horei (Smith, 1880)
chardoni, Unio chardoni Bourguignat, 1893 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
charlottensis, Unio charlottensis Lea, 1863 - syn of: Lasmigona decorata (Lea, 1852)
charpyi, Anodonta charpyi Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
charruana, Unio charruana D'Orbigny, 1835 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
charruanus, Unio charruanus Sowerby, 1868 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
chasmirhynchus, Unio chasmirhynchus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
chathamensis, Unio chathamensis Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
chattanoogaense, Pleurobema chattanoogaense Lea, 1858 - syn of: Pleurobema decisum Lea, 1831
chaudhurii, Radiatula chaudhurii Preston, 1912
cheeziana, Anodon cheeziana Sowerby, 1867 - syn of: Aspatharia chaiziana (Rang, 1835)
chefneuxi, Nitia chefneuxi (Neuville & Anthony, 1906)
chemiana, Anodonta chemiana Liu, 1979 - syn of: Sinanodonta woodiana (Lea, 1834)
cheniana, Anodon cheniana Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
chereshnevi, Beringiana chereshnevi Bogatov & Starobogatov, 2001 - syn of: Anodonta beringiana (Middendorff, 1851)
cherziana, Anodonta cherziana Villa, 1841 - syn of: Aspatharia chaiziana (Rang, 1835)
chickasawhensis, Unio chickasawhensis Lea, 1861 - syn of: Pleurobema beadleianum (Lea, 1861)
childreni, Unio childreni Griffith & Pidgeon, 1833 - syn of: Diplodon chilensis (Gray, 1852)
chilensis, Unio chilensis Gray, 1828 - syn of: Diplodon chilensis (Gray, 1852)
chiloensis, Unio chiloensis Küster, 1861 - syn of: Diplodon chilensis (Gray, 1852)
chinensis, Acuticosta chinensis (Lea, 1868)
chinensis, Unio chinensis Griffith & Pidgeon, 1834 - syn of: Diplodon chilensis (Gray, 1852)
chinensis, Scabies chinensis Liu, Duan & Lai, 1991
chinensis, Dianisotis chinensis Rafinesque, 1831 - syn of: Cristaria plicata (Leach, 1815)
chinensis laevis, Acuticosta chinensis laevis (Heude, 1883)
chinensis squammosus, Acuticosta chinensis squammosus (Heude, 1883)
chiniana, Anodonta chiniana Simpson, 1900 - syn of: Sinanodonta woodiana (Lea, 1834)
chipolaensis, Elliptio chipolaensis Walker, 1905
chiquitana, Anodontes chiquitana D'Orbigny, 1835 - syn of: Anodontites trigona (Spix & Wagner, 1827)
chivoti, Anodonta chivoti Germain, 1904 - syn of: Anodonta cygnea (Linnaeus, 1758)
chiziana, Anodonta chiziana Lea, 1836 - syn of: Aspatharia chaiziana (Rang, 1835)
choboensis, Cristaria choboensis Mabille, 1889
choctawensis, Villosa choctawensis Athearn, 1964
choprae, Parreysia choprae Prashad, 1930
chorellinus, Unio chorellinus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
chorellus, Unio chorellus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
choziensis, Coelatura choziensis (Preston, 1910)
chudeaui, Coelatura aegyptiaca chudeaui Germain
cicatricoides, Unio cicatricoides Frierson, 1911 - syn of: Plethobasus cicatricosus (Say, 1829)
cicatricosus, Plethobasus cicatricosus (Say, 1829)
ciconia, Anodon ciconia Gould, 1851 - syn of: Anodontites trapesialis (Lamarck, 1818)
cilicica, Anodonta cilicica Kobelt, 1895 - syn of: Anodonta cygnea (Linnaeus, 1758)
cincinnatiensis, Epioblasma cincinnatiensis (Lea, 1840)
circinatus, Potomida circinatus Drouët, 1894 - syn of: Potomida littoralis (Cuvier, 1798)
circularis, Unionelloides circularis (Ding & al., 1982) † (FOSSIL)
circularis, Jishuiconcha circularis Ding & al., 1982 † - syn of: Unionelloides circularis (Ding & al., 1982) † (FOSSIL)
circularis, Anodonta circularis Hilbert, 1912 - syn of: Anodonta cygnea (Linnaeus, 1758)
circulus, Potomida circulus Bourguignat, 1893 - syn of: Potomida littoralis (Cuvier, 1798)
cirratus, Unio cirratus Lea, 1874 - syn of: Unio abbevillensis Lea, 1857
cistellaeformis, Elliptio cistellaeformis Lea, 1863
claibornensis, Lampsilis straminea claibornensis Lea
clappertoni, Anodon clappertoni König, 1826 - syn of: Chambardia rubens (Lamarck, 1819)
clarkianus, Unio clarkianus Lea, 1852 - syn of: Hamiota altilis (Conrad, 1834)
clava, Pleurobema clava Lamarck, 1819
clessini, Anodonta clessini Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
clintonensis, Ptychobranchus clintonensis Simpson, 1900 - syn of: Ptychobranchus occidentalis (Conrad, 1836)
coalingensis, Gonidea coalingensis Arnold, 1909 - syn of: Gonidea angulata (Lea, 1838)
coalingensis cooperi, Gonidea coalingensis cooperi Arnold, 1909 - syn of: Gonidea angulata (Lea, 1838)
coarctata, Unio coarctata Lamarck, 1819 - syn of: Unio abbevillensis Lea, 1857
cobelliana, Anodonta cobelliana Adami, 1886 - syn of: Anodonta cygnea (Linnaeus, 1758)
coccineum, Pleurobema cordatum coccineum Conrad
coccineum, Pleurobema coccineum Rafinesque, 1820 - syn of: Pleurobema sintoxia Rafinesque, 1820
coccineus, Unio coccineus Conrad, 1836 - syn of: Pleurobema sintoxia Rafinesque, 1820
cochlearis, Anodon cochlearis Sowerby, 1870 - syn of: Aspatharia pfeifferiana (Bernardi, 1860)
cocoduensis, Unio cocoduensis Reeve, 1865 - syn of: Ligumia subrostrata (Say, 1831)
codopsis, Anodonta codopsis Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
cognata, Anodon cognata Gould, 1850 - syn of: Anodonta oregonensis Lea, 1838
cognata, Truncilla cognata Lea, 1860
colchicus, Unio colchicus Drouët, 1881 - syn of: Unio crassus Philipsson, 1788
collina, Pleurobema collina Conrad, 1837
colorata, Sphenonaias colorata (Charpentier, 1856)
columbensis, Uniomerus columbensis (Lea, 1857)
compacta, Pseudanodonta compacta Zelebor, 1851 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
compacta kuesteri, Pseudanodonta compacta kuesteri Haas, 1913 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
compactus, Unio compactus Lea, 1859 - syn of: Epioblasma metastriata Conrad, 1838
complacita, Anodonta complacita Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
complanata, Lasmigona complanata (Barnes, 1823)
complanata, Elliptio complanata (Lightfoot, 1786)
complanata, Pseudanodonta complanata (Rossmässler, 1835)
complanata, Anodonta complanata Rossmässler, 1836 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
complanata alabamensis, Lasmigona complanata alabamensis Clarke, 1985
complanata compacta, Anodonta complanata compacta Zelebor, 1851 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
complanata elongata, Pseudanodonta complanata elongata Holandre, 1836 - syn of: Pseudanodonta elongata (Holandre, 1836)
complanata jijiana, Anodonta complanata jijiana Nicodim, 1909 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
complanata lacustrina, Pseudanodonta complanata lacustrina Grossu, 1962 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
complanata savensis, Pseudanodonta complanata savensis Kobelt & Haas, 1911 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
complanata sobriewskii, Pseudanodonta complanata sobriewskii Rosen, 1925 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
complanata tumida, Anodonta complanata tumida Zelebor, 1851 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
complanatus, Unio complanatus Middendorff, 1851 - syn of: Margaritifera middendorffi (Rosen, 1926)
complanatus mainensis, Unio complanatus mainensis Rich, 1915 - syn of: Unio abbevillensis Lea, 1857
compressa, Lasmigona compressa (Lea, 1829)
compressa, Microcondylaea compressa (Menke, 1830)
compressa, Arsenievinaia compressa Bogatov & Starobogatov, 1996 - syn of: Sinanodonta woodiana (Lea, 1834)
compressa, Beringiana compressa Sayenko & Bogatov, 1998 - syn of: Anodonta beringiana (Middendorff, 1851)
compressa, Pilsbryoconcha exilis compressa Von Martens
compressus, Unio compressus Heude, 1877 - syn of: Ptychorhynchus murinum (Heude, 1883)
comptus, Trapezoideus exolescens comptus Deshayes
comptus, Unio comptus Deshayes, 1875 - syn of: Trapezoideus exolescens comptus (Deshayes, 1875)
computata, Actinonaias computata (Crosse & Fischer, 1893)
concestator, Unio concestator Lea, 1857 - syn of: Villosa lienosa (Conrad, 1834)
conchos, Disconaias conchos Taylor, 1997
condatina, Anodonta condatina Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
confertus, Unio confertus Lea, 1834 - syn of: Elliptio raveneli Conrad, 1834
confervigera, Anodonta confervigera Schlüter, 1838 - syn of: Anodonta cygnea (Linnaeus, 1758)
confragosa, Lamprotula confragosa (Frierson, 1928)
confragosus, Arcidens confragosus (Say, 1829)
confusa, Anodonta confusa Heude, 1881 - syn of: Sinanodonta woodiana (Lea, 1834)
congaraea, Elliptio congaraea (Lea, 1831)
congarea, Elliptio congarea Lea, 1831 - syn of: Elliptio congaraea (Lea, 1831)
conimbricus, Unio conimbricus Kobelt, 1893 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
connasaugaensis, Strophitus connasaugaensis (Lea, 1858)
conradi, Pleuronaia dolabelloides conradi Vanatta
conradicus, Medionidus conradicus (Lea, 1838)
consanguineus, Unio consanguineus De Gregorio, 1914 - syn of: Pleurobema clava Lamarck, 1819
consentaneus, Unio consentaneus Rossmässler, 1836 - syn of: Unio crassus Philipsson, 1788
consentaneus legitimus, Unio consentaneus legitimus Rossmässler, 1838 - syn of: Unio crassus Philipsson, 1788
consentaneus minor, Unio consentaneus minor Rossmässler, 1838 - syn of: Unio crassus Philipsson, 1788
consentaneus moquini, Unio consentaneus moquini Germain, 1931 - syn of: Unio mancus Lamarck, 1819
consentaneus pulcher, Unio consentaneus pulcher Rossmässler, 1838 - syn of: Unio crassus Philipsson, 1788
consobrinus, Lamellidens consobrinus (Lea, 1859)
conspicua, Lampsilis radiata conspicua Lea
constricta, Villosa constricta (Conrad, 1838)
contadina, Anodonta contadina Locard, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
contiguus, Unio contiguus Lea, 1862 - syn of: Villosa lienosa (Conrad, 1834)
continentalis, Nodularia continentalis Haas, 1910 - syn of: Inversidens pantoensis (Neumayr, 1899)
contorta, Burtonia contorta Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
contorta, Anodonta contorta Brown, 1844 - syn of: Anodonta cygnea (Linnaeus, 1758)
contorta, Arconaia contorta Lea, 1857 - syn of: Arconaia lanceolata (Lea, 1856)
contortus conjungens, Unio contortus conjungens Heude, 1877 - syn of: Arconaia lanceolata (Lea, 1856)
contortus muticus, Unio contortus muticus Heude, 1877 - syn of: Arconaia lanceolata (Lea, 1856)
contractus, Unio contractus Lea, 1857 - syn of: Unio abbevillensis Lea, 1857
contradens, Contradens contradens (Lea, 1838)
contradens ascia, Contradens contradens ascia (Hanley, 1856)
contradens crossei, Contradens contradens crossei (Deshayes, 1876)
contradens fischerianus, Contradens contradens fischerianus (Morlet, 1883)
contradens lugens, Contradens contradens lugens (Drouët & Chaper, 1892)
contradens rustica, Contradens contradens rustica (Lea, 1856)
contradens rusticoides, Contradens contradens rusticoides Brandt, 1974
contradens tumidula, Contradens contradens tumidula (Lea, 1856)
contritus, Unio contritus Heude, 1881 - syn of: Lamprotula caveata (Heude, 1877)
conus, Unio tumidus conus Spengler
convexum, Anodonta convexum Drouët, 1888 - syn of: Anodonta anatina (Linnaeus, 1758)
cooperianus, Plethobasus cooperianus (Lea, 1834)
copanensis, Nephronaias copanensis (Von Martens, 1900)
coptzevi, Arsenievinaia coptzevi Zatrawkin & Bogatov, 1987 - syn of: Sinanodonta woodiana (Lea, 1834)
cor, Fusconaia cor (Conrad, 1834)
cor analoga, Fusconaia cor analoga Ortmann, 1918 - syn of: Fusconaia cor (Conrad, 1834)
corbicula, Grandidieria burtoni corbicula Bourguignat
corbis, Parreysia corbis (Hanley, 1856)
cordata, Obovaria cordata Rafinesque, 1820 - syn of: Obovaria retusa Lamarck, 1819
cordata, Quadrula cordata Vanatta, 1915 - syn of: Pleurobema plenum Lea, 1840
cordatum, Pleurobema cordatum Rafinesque, 1820
cordatum catilllus, Pleurobema cordatum catilllus Conrad, 1836
cordatum coccineum, Pleurobema cordatum coccineum Conrad, 1836
cordatum coccineum, Pleurobema cordatum coccineum Rafinesque, 1820 - syn of: Pleurobema sintoxia Rafinesque, 1820
cordatum pyramidatum, Pleurobema cordatum pyramidatum Lea, 1834 - syn of: Pleurobema rubrum Rafinesque, 1820
coreana, Lamprotula coreana Von Martens, 1905
coriaceus, Unio coriaceus Dunker, 1848 - syn of: Diplodon multistriatus coriaceus (Dunker, 1848)
corium, Unio corium Reeve, 1864 - syn of: Psoronaias semigranosa (Busch, 1845)
corneus, Unio corneus Lea, 1874 - syn of: Elliptio fumata (Lea, 1857)
cornuumlunae, Lamprotula cornuumlunae (Heude, 1883)
cornuumlunae, Lamprotula cornuumlunae Heude, 1883 - syn of: Lamprotula cornuumlunae (Heude, 1883)
corpulenta, Anodonta grandis corpulenta Cooper
corpulentoides, Anodonta corpulentoides Lea, 1868 - syn of: Anodonta grandis Say, 1829
corrianus, Lamellidens corrianus (Lea, 1834)
corrientesinsis, Unio corrientesinsis Hanley, 1843 - syn of: Monocondylaea corrientesensis D'Orbigny, 1836
corrosa, Anodonta corrosa Brusina, 1870 - syn of: Anodonta cygnea (Linnaeus, 1758)
corrugata, Parreysia corrugata (Müller, 1774)
corrugata, Unio corrugata Blainville, 1825 - syn of: Prisodon syrmatophorus (Gmelin, 1791)
corrugata, Oxynaia jourdyi corrugata Dautzenberg & Fischer
corrugata, Alasmodon corrugata De Kay, 1843 - syn of: Alasmidonta varicosa (Lamarck, 1819)
corrugata, Unio corrugata Mauduyt, 1839 - syn of: Unio crassus Philipsson, 1788
corrugata, Potomida corrugata Swainson, 1840 - syn of: Potomida littoralis (Cuvier, 1798)
corrugatus solida, Unio corrugatus solida Hanley & Theobald, 1876 - syn of: Parreysia corrugata (Müller, 1774)
coruscus, Unio coruscus Gould, 1856 - syn of: Elliptio jayensis Lea, 1838
corvunculus, Toxolasma corvunculus Lea, 1868
corvus, Unio corvus Lea, 1859 - syn of: Elliptio congaraea (Lea, 1831)
costata, Lasmigona costata (Rafinesque, 1820)
couchiana, Amphinaias couchiana (Lea, 1860)
coulboisi, Unio coulboisi Bourguignat, 1886 - syn of: Coelatura horei (Smith, 1880)
couperiana, Utterbackiana couperiana (Lea, 1840)
coupha, Anodonta coupha Servain, 1887 - syn of: Anodonta cygnea (Linnaeus, 1758)
coyensis, Actinonaias coyensis (Pilsbry, 1910)
crapulus, Unio crapulus Lea, 1861 - syn of: Pleurobema fibuloides (Lea, 1859)
crassa, Lamprotula crassa (Wood, 1815)
crassa, Anodonta crassa Zelebor, 1851 - syn of: Anodonta cygnea (Linnaeus, 1758)
crassatellus, Unio crassatellus Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
crassiamus, Unio crassiamus Preston, 1912 - syn of: Pseudunio auricularius (Spengler, 1793)
crassidens, Elliptio crassidens Lamarck, 1819
crassidens incrassata, Elliptio crassidens incrassata Lea, 1843 - syn of: Elliptio crassidens Lamarck, 1819
crassissimus, Unio crassissimus Hanley, 1843 - syn of: Unio crassus Philipsson, 1788
crassitesta, Cristariopsis crassitesta Moskvicheva, 1973 - syn of: Sinanodonta woodiana (Lea, 1834)
crassornata, Pseudospatha crassornata Buckman, 1910 † - syn of: Bredyia subinsignis (Oppel, 1856) † (FOSSIL)
crassulus, Microcondylus crassulus Drouët, 1879 - syn of: Microcondylaea compressa (Menke, 1830)
crassulus, Unio crassulus Drouët, 1888 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
crassus, Pseudodon crassus Drouët & Chaper, 1892
crassus, Microcondylus crassus Haas, 1940 - syn of: Microcondylaea compressa (Menke, 1830)
crassus, Unio crassus Philipsson, 1788
crassus, Anodon crassus Swainson, 1823 - syn of: Anodontites patagonica Lamarck, 1819
crassus batavus, Unio crassus batavus (Maton & Rackett, 1807)
crassus giganteus, Unio crassus giganteus Barnes, 1823 - syn of: Magnonaias nervosa (Rafinesque, 1820)
crassus jonicus, Unio crassus jonicus Drouët, 1879
crassus nanus, Unio crassus nanus (Lamarck, 1810)
craverii, Leguminaia craverii Pollonera, 1899 - syn of: Microcondylaea compressa (Menke, 1830)
crebristriatus, Pseudodon crebristriatus Anthony, 1865
crebristriatus curvata, Trigonodon crebristriatus curvata Preston, 1912 - syn of: Pseudodon crebristriatus Anthony, 1865
crepera, Anodonta crepera Lea, 1850 - syn of: Simpsonella gracilis (Lea, 1850)
cridlandi, Coelatura cridlandi Mandahl-Barth, 1954
crispa, Anodonta crispa Bory De Saint-Vincent, 1827 - syn of: Anodontites crispata (Bruguière, 1792)
crispata, Scabies crispata (Gould, 1843)
crispata tenebricosa, Anodonta crispata tenebricosa Bonetto & Drago, 1966 - syn of: Anodontites tenebricosa (Lea, 1834)
crispisulcata, Radiatula crispisulcata (Benson, 1862)
cristata, Anodonta cristata Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
crocodilorum, Psoronaias crocodilorum (Morelet, 1849)
croninae, Nodularia croninae Ortmann & Walker, 1922 - syn of: Parreysia tavoyensis (Gould, 1843)
crossei, Contradens contradens crossei Deshayes
crosthwaitei, Unio crosthwaitei Newton, 1909 † - syn of: Margaritifera crosthwaitei (Newton, 1909) † (FOSSIL)
crudus, Unio crudus Lea, 1871 - syn of: Fusconaia barnesiana (Lea, 1829)
cucumoides, Unio cucumoides Lea, 1840 - syn of: Cucumerunio novaehollandiae (Gray, 1834)
culoxiana, Anodonta culoxiana Nicolas, 1891 - syn of: Anodonta cygnea (Linnaeus, 1758)
cultelliformis, Unio cultelliformis Conrad, 1850 - syn of: Hyridella depressa (Lamarck, 1819)
cultrata, Anodonta cultrata Lea, 1852 - syn of: Anodonta grandis Say, 1829
cumberlandi, Unio cumberlandi Woodward, 1965 † (FOSSIL)
cumingianus, Unio cumingianus Dunker, 1852 - syn of: Cucumerunio novaehollandiae (Gray, 1834)
cumingii, Hyriopsis cumingii (Lea, 1834)
cumingii, Pseudodon cumingii (Lea, 1850)
cumingii, Unio cumingii Lea, 1870 - syn of: Cucumerunio novaehollandiae (Gray, 1834)
cuneata, Anodonta cuneata Rafinesque, 1820 - syn of: Anodonta cataracta Say, 1817
cuneata, Pleurobema cuneata Rafinesque, 1820 - syn of: Pleurobema clava Lamarck, 1819
cuneatus, Unio cuneatus Barnes, 1823 - syn of: Elliptio crassidens Lamarck, 1819
cuneatus, Unio cuneatus Say, 1834 - syn of: Pleurobema clava Lamarck, 1819
cuneolus, Fusconaia cuneolus (Lea, 1840)
cunninghami, Unio cunninghami Wright, 1883 - syn of: Elliptio jayensis Lea, 1838
cupha, Anodonta cupha Locard, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
cuprea, Ellipsaria cuprea Rafinesque, 1820 - syn of: Elliptio dilatata Rafinesque, 1820
cuprinus, Unio cuprinus Lea, 1831 - syn of: Popenaias metallica (Say, 1831)
cuprinus subventralis, Simonaias cuprinus subventralis Von Martens, 1900 - syn of: Popenaias metallica (Say, 1831)
curatus, Unio curatus Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
curtisi, Ellipsaria curtisi Frierson & Utterback, 1916 - syn of: Epioblasma florentina (Lea, 1857)
curtum, Pleurobema curtum Lea, 1859
curvatus, Unio curvatus Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
cuspidata, Lanceolaria oxyrhyncha cuspidata Kuroda
cuvierianus, Unio cuvierianus Lea, 1852 - syn of: Unio abbevillensis Lea, 1857
cyclips, Toxolasma cyclips Rafinesque, 1831 - syn of: Lampsilis abrupta Say, 1831
cyclops, Unio cyclops Conrad, 1836 - syn of: Lampsilis abrupta Say, 1831
cygnea, Anodonta cygnea (Linnaeus, 1758)
cygnea armenica, Anodonta cygnea armenica Ovtschinnikov, 1935 - syn of: Anodonta cyrea Drouët, 1881
cygnea cellensis, Anodonta cygnea cellensis (Gmelin, 1791)
cygnea piscinalis, Anodonta cygnea piscinalis (Linnaeus, 1758) - syn of: Anodonta anatina (Linnaeus, 1758)
cygnea piscinalis, Anodonta cygnea piscinalis Nilsson, 1823 - syn of: Anodonta anatina (Linnaeus, 1758)
cylindracea, Elliptio cylindracea Frierson, 1927
cylindracea, Anodonta cylindracea Lea, 1838 - syn of: Anodontites cylindracea (Lea, 1838)
cylindrellus, Toxolasma cylindrellus Lea, 1868
cylindrica, Theliderma cylindrica (Say, 1817)
cylindrica, Lanceolaria cylindrica (Simpson, 1900)
cylindrica, Parreysia cylindrica Annandale & Prashad, 1919
cylindrica, Anodonta cylindrica Dewey, 1856 - syn of: Anodontoides ferussacianus (Lea, 1834)
cylindrica, Buldowskia cylindrica Moskvicheva, 1973 - syn of: Anemina arcaeformis (Heude, 1877)
cylindrica strigillata, Theliderma cylindrica strigillata Wright, 1898
cypholena, Anodonta cypholena Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
cyphus, Plethobasus cyphus Rafinesque, 1820 - syn of: Plethobasus cyphyus (Rafinesque, 1820)
cyphyus, Plethobasus cyphyus (Rafinesque, 1820)
cyprinorum, Unio cyprinorum Berthier, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
cyrea, Anodonta cyrea Drouët, 1881
cyrenoides, Pachynaias cyrenoides (Philippi, 1847)
cyrenopsis, Grandidieria burtoni cyrenopsis Bourguignat
cyrtus, Unio cyrtus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
cytherea, Unio cytherea Küster, 1833 - syn of: Unio crassus Philipsson, 1788
daccaensis, Parreysia daccaensis Preston, 1912 - syn of: Lamellidens jenkinsianus (Benson, 1862)
dactylus, Unio dactylus Morelet, 1845 - syn of: Unio abrantesianus Locard, 1899
dactylus, Anodon dactylus Sowerby, 1867 - syn of: Anodontites elongata dactylus (Sowerby, 1869)
dahomeyensis, Anodonta dahomeyensis Lea, 1859 - syn of: Aspatharia dahomeyensis (Lea, 1859)
dahuricus, Unio dahuricus Middendorff, 1850 - syn of: Margaritifera dahurica (Middendorff, 1850)
dakota, Anodonta dakota Frierson, 1910 - syn of: Anodonta grandis Say, 1829
dakotana, Anodonta dakotana Utterback, 1915 - syn of: Anodonta grandis Say, 1829
dallasiana, Anodonta dallasiana Lea, 1863 - syn of: Anodonta grandis Say, 1829
dalli, Unio dalli Wright, 1888 - syn of: Elliptio jayensis Lea, 1838
dalliana, Parreysia dalliana Frierson, 1913 - syn of: Trapezoideus exolescens (Gould, 1843)
dalmatina, Anodonta dalmatina Clessin, 1874 - syn of: Anodonta cygnea (Linnaeus, 1758)
danellii, Unio danellii Lea, 1870 - syn of: Velesunio ambiguus (Philippi, 1847)
danemorae, Unio danemorae Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
danica, Anodonta danica Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
daniellii, Unio daniellii Villa, 1871 - syn of: Velesunio ambiguus (Philippi, 1847)
danielsii, Anodonta danielsii Lea, 1858 - syn of: Anodonta grandis Say, 1829
danielsii, Unio danielsii Wright, 1899 - syn of: Elliptio crassidens Lamarck, 1819
danubialis, Pseudanodonta danubialis Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
dariensis, Elliptio dariensis Lea, 1842
dariensis, Anodonta dariensis Lea, 1858 - syn of: Anodonta cataracta Say, 1817
datus, Unio datus Lea, 1868 - syn of: Unio abbevillensis Lea, 1857
dealbata, Anodonta dealbata Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
decisum, Pleurobema decisum Lea, 1831
declivis, Uniomerus declivis (Say, 1831)
declivis, Anodonta declivis Conrad, 1834 - syn of: Anodonta grandis Say, 1829
decora, Anodonta decora Lea, 1838 - syn of: Anodonta grandis Say, 1829
decorata, Lasmigona decorata (Lea, 1852)
decumbens, Unio decumbens Lea, 1861 - syn of: Unio abbevillensis Lea, 1857
decurtatus, Unio decurtatus Drouët, 1893 - syn of: Unio abrantesianus Locard, 1899
decurvatus, Unio decurvatus Rossmässler, 1835 - syn of: Unio crassus Philipsson, 1788
defilippi sirikulensis, Unio defilippi sirikulensis Nevill, 1878 - syn of: Lymnaea sirikulensis (Nevill, 1878)
dehiscens, Unio dehiscens Say, 1829 - syn of: Hemistena lata Rafinesque, 1820
dehiscens oriensopsis, Sayunio dehiscens oriensopsis De Gregorio, 1914 - syn of: Hemistena lata Rafinesque, 1820
dehonesta, Anodonta dehonesta Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
dejecta, Anodonta dejecta Lewis, 1875
delaportei, Hyriopsis delaportei (Crosse & Fischer, 1876)
delicatus, Unio terminalis delicatus Lea
delodonta, Unio delodonta Lamarck, 1819 - syn of: Diplodon delodontus (Lamarck, 1819)
delphinulus, Delphinonaias delphinulus (Morelet, 1849)
delphinus, Hyriopsis delphinus Gruner, 1841 - syn of: Hyriopsis bialatus Simpson, 1900
delpretei, Anodonta delpretei Bourguignat, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
delumbis, Villosa delumbis (Conrad, 1834)
demangei, Cuneopsis demangei Haas, 1929
demararaensis, Unio demararaensis Lea, 1859 - syn of: Rhipidodonta demeraraensis (Lea, 1859)
demarasensis, Unio demarasensis Paetel, 1890 - syn of: Rhipidodonta demeraraensis (Lea, 1859)
demeraraensis, Unio demeraraensis Lea, 1859 - syn of: Rhipidodonta demeraraensis (Lea, 1859)
demerarensis, Unio demerarensis Parodíz, 1968 - syn of: Rhipidodonta demeraraensis (Lea, 1859)
denigrata, Anodonta denigrata Lea, 1852 - syn of: Anodontoides ferussacianus (Lea, 1834)
denigratus, Unio denigratus Lea, 1857 - syn of: Elliptio nigella Lea, 1852
denserugata, Nodularia denserugata Haas, 1910
dentiens, Anodonta dentiens Menke, 1828 - syn of: Anodonta cygnea (Linnaeus, 1758)
depauperata, Unio depauperata Hutton, 1882 - syn of: Echyridella menziesii depauperata (Hutton, 1882)
depexa, Anodonta depexa Von Martens, 1900 - syn of: Anodontites depexus (Von Martens, 1900)
deplanata, Anodonta deplanata Gallenstein, 1852 - syn of: Anodonta cygnea (Linnaeus, 1758)
depressa, Unio depressa D'Orbigny, 1835 - syn of: Rhipidodonta burroughiana (Lea, 1834)
depressa, Unio depressa Lamarck, 1819 - syn of: Hyridella depressa (Lamarck, 1819)
depressa, Unio depressa Lesson, 1830 - syn of: Hyridella australis (Lamarck, 1819)
depressa, Unio depressa Pfeiffer, 1825 - syn of: Microcondylaea compressa (Menke, 1830)
depressa, Obliquaria depressa Rafinesque, 1820 - syn of: Ellipsaria lineolata Rafinesque, 1820
depressa augusti, Pseudoanodonta depressa augusti Graziadei, 1933 - syn of: Microcondylaea compressa (Menke, 1830)
depressum, Anodonta depressum Bourguignat, 1881 - syn of: Anodonta anatina (Linnaeus, 1758)
depressus, Unio depressus Reeve, 1864 - syn of: Velesunio moretonicus (Reeve, 1865)
derasa, Anodonta derasa Zieg, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
derzhavini, Beringiana derzhavini Bogatov & Starobogatov, 2001 - syn of: Anodonta beringiana (Middendorff, 1851)
deserticus, Unio deserticus Mongin, 1968 † - syn of: Adrarunio deserticus (Mongin, 1968) † (FOSSIL)
deshayesi, Unio deshayesi Michaud, 1831 - syn of: Unio pictorum (Linnaeus, 1758)
desmoulinsiana, Anodonta desmoulinsiana Locard, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
desori, Anodonta desori Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
desowitzi, Hyriopsis desowitzi Brandt, 1974
despecta, Anodon despecta Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
detectus, Unio detectus Frierson, 1911 - syn of: Plethobasus cicatricosus (Say, 1829)
deviatus, Unio deviatus Reeve, 1864 - syn of: Dysnomia turgidula Lea, 1858
dhanushori, Trapezoideus dhanushori Prashad, 1921 - syn of: Trapezoideus exolescens (Gould, 1843)
diazensis, Unio diazensis Wright, 1897 - syn of: Elliptio jayensis Lea, 1838
diespiter, Oxynaia diespiter (Mabille, 1887)
differtus, Unio differtus Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
digitatus, Unio digitatus Morelet, 1851 - syn of: Magnonaias nickliniana (Lea, 1834)
digitiformis, Unio digitiformis Sowerby, 1868 - syn of: Oxynaia pugio (Benson, 1862)
dignota, Anodonta dignota Férussac, 1835 - syn of: Anodonta cataracta Say, 1817
digonota, Anodonta digonota Rafinesque, 1831 - syn of: Anodonta cataracta Say, 1817
dilatata, Elliptio dilatata Rafinesque, 1820
dilatata sterkii, Elliptio dilatata sterkii Grier, 1918 - syn of: Elliptio dilatata Rafinesque, 1820
dilatata subgibbosa, Elliptio dilatata subgibbosa Utterback, 1915 - syn of: Elliptio dilatata Rafinesque, 1820
dilatatus, Unio dilatatus Studer, 1820 - syn of: Unio crassus Philipsson, 1788
diminuta, Anodonta diminuta Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
diptychus, Unio diptychus Surrault, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
disca, Disconaias disca (Lea, 1838)
disciformis, Zairia disciformis Rochebrune, 1886 - syn of: Coelatura rotula Pilsbry & Bequaert, 1927
discoidea, Anodonta discoidea Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
discoidea, Cristaria discoidea Lea, 1834 - syn of: Cristaria tenuis (Griffith & Pidgeon, 1833)
disculus, Unio disculus Lea, 1860 - syn of: Rhipidodonta funebralis (Lea, 1834)
discus connectens, Lampsilis discus connectens Von Martens, 1900 - syn of: Disconaias panacoensis (Busch, 1843)
dispar, Unio dispar Lea, 1860 - syn of: Villosa lienosa (Conrad, 1834)
dissimilis, Unio dissimilis Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
distincta, Psoronaias distincta (Crosse & Fischer, 1893)
distinguendus, Unio distinguendus Böttger, 1912 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
divaricatus, Unio divaricatus Lea, 1834 - syn of: Diplodon delodontus (Lamarck, 1819)
divaricatus, Elliptio divaricatus Marshall, 1926 - syn of: Psorula guatemalensis (Simpson, 1900)
divergens, Lamprotula divergens (Benson, 1855)
dokici, Anodonta dokici Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
dolabelloides, Pleuronaia dolabelloides (Lea, 1840)
dolabelloides conradi, Pleuronaia dolabelloides conradi Vanatta
dolabraeformis, Lampsilis dolabraeformis Lea, 1838
dolfussianus, Unio dolfussianus Bourguignat, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
doliaris, Anodonta doliaris Lea, 1863 - syn of: Anodonta cataracta Say, 1817
doliaris, Unio doliaris Lea, 1865 - syn of: Hamiota altilis (Conrad, 1834)
doliolum, Anodon doliolum Heude, 1878 - syn of: Sinanodonta woodiana (Lea, 1834)
dombeyanus, Plectomerus dombeyanus (Valenciennes, 1827)
donaciformis, Truncilla donaciformis Lea, 1827
donaciformis, Unio donaciformis Sowerby, 1866 - syn of: Truncilla cognata Lea, 1860
dooleyensis, Unio dooleyensis Lea, 1874 - syn of: Elliptio fumata (Lea, 1857)
dorbignianus, Unio dorbignianus Sowerby, 1868 - syn of: Castalia orbignyi (Deville & Hupé, 1850)
dorbignyanus, Unio dorbignyanus Simpson, 1900 - syn of: Castaliella sulcata (Krauss, 1849)
dorei, Unio dorei Wright, 1888 - syn of: Elliptio jayensis Lea, 1838
doriae, Leguminaia doriae Bourguignat, 1883 - syn of: Microcondylaea compressa (Menke, 1830)
doriana, Anodonta doriana Bourguignat, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
dorri, Nodularia dorri (Wattebled, 1886)
dorsatus, Unio dorsatus Lea, 1868 - syn of: Elliptio congaraea (Lea, 1831)
dorsuosa, Anodonta dorsuosa Drouët, 1881 - syn of: Pseudanodonta elongata (Holandre, 1836)
dorsuosus, Unio dorsuosus Gould, 1850 - syn of: Hyridella australis (Lamarck, 1819)
douglasiae, Nodularia douglasiae (Gray, 1834)
douglasiae biwae, Nodularia douglasiae biwae Kobelt, 1879
douglasiae chloreus, Unio douglasiae chloreus Heude, 1885 - syn of: Nodularia douglasiae (Gray, 1834)
douglasiae crassidens, Nodularia douglasiae crassidens Haas, 1910 - syn of: Nodularia douglasiae (Gray, 1834)
douglasiae dactylinus, Unio douglasiae dactylinus Heude, 1885 - syn of: Nodularia douglasiae (Gray, 1834)
douglasiae deltae, Unio douglasiae deltae Heude, 1885 - syn of: Nodularia douglasiae (Gray, 1834)
douglasiae firmus, Unio douglasiae firmus Heude, 1885 - syn of: Nodularia douglasiae (Gray, 1834)
douglasiae flavoviridis, Nodularia douglasiae flavoviridis Haas, 1910 - syn of: Nodularia douglasiae (Gray, 1834)
douglasiae hainanensis, Unio douglasiae hainanensis Heude, 1885 - syn of: Nodularia douglasiae (Gray, 1834)
douglasiae osbeckii, Unio douglasiae osbeckii Heude, 1885 - syn of: Nodularia douglasiae (Gray, 1834)
douglasiae subpressus, Unio douglasiae subpressus Heude, 1885 - syn of: Ptychorhynchus murinum (Heude, 1883)
douglasiae taiwanicus, Nodularia douglasiae taiwanicus Pilsbry & Hirase, 1905
downiei, Elliptio downiei Lea, 1858
draparnaldii, Potomida draparnaldii Deshayes, 1831 - syn of: Potomida littoralis (Cuvier, 1798)
dromas, Dromus dromas (Lea, 1834)
dromauxi, Unio dromauxi Bourguignat, 1886 - syn of: Coelatura horei (Smith, 1880)
dromus, Dromus dromus Lea, 1834 - syn of: Dromus dromas (Lea, 1834)
droueti, Unio droueti Dupuy, 1849 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
drouetii, Unio drouetii Dupuy, 1849 - syn of: Unio crassus Philipsson, 1788
dubia, Alasmidonta dubia Férussac, 1835 - syn of: Simpsoniconcha ambigua (Say, 1825)
dubisianopsis, Unio dubisianopsis Locard, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
dubisianus, Unio dubisianus Coutagne, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
dubius, Unio dubius Fitzinger, 1833 - syn of: Unio crassus Philipsson, 1788
dubreili, Anodonta dubreili Servain, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
duclerci, Unio duclerci Rochebrune, 1882 - syn of: Chamberlainia hainesiana (Lea, 1856)
dugasti, Unio dugasti Morlet, 1892 - syn of: Ensidens sagittarius (Lea, 1856)
dulkeitiana, Pseudopotomida dulkeitiana Moskvicheva & Starobogatov, 1973 - syn of: Inversidens pantoensis (Neumayr, 1899)
dumesnilianus, Unio dumesnilianus Charmes, 1885 - syn of: Coelatura ratidota (Charmes, 1885)
dunkerianus, Unio dunkerianus Clessin, 1888 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
dunkerianus, Unio dunkerianus Lea, 1856 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
duponti, Unio duponti Bourguignat, 1883 - syn of: Coelatura hauttecoeuri (Bourguignat, 1883)
dupuyi, Anodonta dupuyi Ray & Drouët, 1849 - syn of: Anodonta anatina (Linnaeus, 1758)
duregica, Anodonta duregica Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
durieui, Unio durieui Deshayes, 1847
duttonianus, Unio duttonianus Lea, 1841 - syn of: Elliptio lanceolata Lea, 1827
dysonii, Nephronaias dysonii (Lea, 1859)
ebena, Fusconaia ebena (Lea, 1831)
ebenus, Unio ebenus Call, 1894 - syn of: Fusconaia subrotunda (Lea, 1831)
ecclesi, Nyassunio ecclesi Crowley & al., 1964 - syn of: Nyassunio nyassaensis (Lea, 1864)
ectina, Anodonta ectina Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
edentula, Alasmodonta edentula Say, 1829 - syn of: Strophitus undulatus (Say, 1817)
edgariana, Fusconaia edgariana Lea, 1840 - syn of: Fusconaia cor (Conrad, 1834)
eduardi, Unio eduardi Dautzenberg & Germain, 1914 - syn of: Coelatura briarti (Dautzenberg, 1901)
edulis, Anodonta edulis Heude, 1874 - syn of: Sinanodonta woodiana (Lea, 1834)
edwardsianus, Unio edwardsianus Bourguignat, 1883 - syn of: Coelatura hauttecoeuri (Bourguignat, 1883)
edyus, Unio edyus Bourguignat, 1882 - syn of: Unio tumidus Retzius, 1788
effulgens, Unio effulgens Lea, 1856 - syn of: Diplodon expansus (Küster, 1853)
elegans, Zairia elegans Rochebrune, 1886 - syn of: Coelatura gabonensis (Küster, 1862)
ellenbergi, Nodularia ellenbergi Germain, 1920 - syn of: Coelatura kunenensis (Mousson, 1887)
elliottii, Amblema elliottii Lea, 1856
ellipsiformis, Venustaconcha ellipsiformis (Conrad, 1836)
ellipsiformis, Pseudanodonta ellipsiformis Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
ellipsiformis pleasii, Venustaconcha ellipsiformis pleasii Marsh, 1891 - syn of: Venustaconcha pleasii (Marsh, 1891)
ellipsoideus, Unio ellipsoideus Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
ellipsopsis, Anodonta ellipsopsis Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
elliptica, Sinanodonta woodiana elliptica Heude
ellipticus, Pseudodon ellipticus Conrad, 1865
ellipticus, Unio ellipticus Spix & Wagner, 1827 - syn of: Diplodon ellipticus (Spix & Wagner, 1827)
elongata, Pseudanodonta elongata (Holandre, 1836)
elongata, Grandidieria burtoni elongata Bourguignat
elongata, Burtonia elongata Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
elongata, Lamprotula elongata Liu, Zhang & Wang, 1980
elongata, Anodonta elongata Potiez & Michaud, 1844 - syn of: Anodonta cygnea (Linnaeus, 1758)
elongata, Anodonta elongata Stentz, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
elongata, Naia elongata Swainson, 1840 - syn of: Cucumerunio novaehollandiae (Gray, 1834)
elongatulus, Unio elongatulus Pfeiffer, 1825 - syn of: Unio mancus Lamarck, 1819
elongatus, Unio elongatus Pfeiffer, 1825 - syn of: Unio mancus Lamarck, 1819
elongatus, Anodon elongatus Swainson, 1823 - syn of: Anodontites elongata (Swainson, 1823)
elvae, Reticulatus elvae (Walker, 1924)
emacerata, Anodonta emacerata Drouët, 1894 - syn of: Anodonta cygnea (Linnaeus, 1758)
emarginata, Solenaia emarginata (Lea, 1860)
embia, Anodonta embia Bourguignat, 1864 - syn of: Anodonta cygnea (Linnaeus, 1758)
embiella, Anodonta embiella Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
emeria, Anodonta emeria Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
emmonsii, Unio emmonsii Lea, 1857 - syn of: Elliptio lanceolata Lea, 1827
enhydra, Anodonta enhydra Da Silva e Castro, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
ensiformis, Anodon ensiformis Spix & Wagner, 1827 - syn of: Lamproscapha ensiformis (Spix, 1827)
epipedacra, Anodonta epipedacra Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
episcopalis, Unio episcopalis Tristram, 1865 - syn of: Margaritifera homsensis (Lea, 1865)
eporediana, Anodonta eporediana Bourguignat, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
errans, Elliptio errans Lea, 1834
ervica, Anodonta ervica Kobelt, 1894 - syn of: Anodonta cygnea (Linnaeus, 1758)
escambia, Fusconaia escambia Clench & Turner, 1956
essoensis, Coelatura essoensis (Chaper, 1885)
estabrookianus, Unio estabrookianus Lea, 1845 - syn of: Fusconaia barnesiana (Lea, 1829)
etowaensis, Lasmigona etowaensis (Conrad, 1849)
eucaca, Anodonta eucaca Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
euchasmus, Unio euchasmus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
eucirrus, Unio eucirrus Bourguignat, 1857 - syn of: Unio mancus Lamarck, 1819
eucylindrica, Lanceolaria eucylindrica Lin, 1962
eucypha, Anodonta eucypha Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
eudora, Anodonta eudora Bourguignat, 1887 - syn of: Anodonta cygnea (Linnaeus, 1758)
eumorphia, Anodonta eumorphia Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
eupelina, Anodonta eupelina Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
euphratica, Pseudodontopsis euphratica (Bourguignat, 1852)
euphymus, Unio euphymus Charmes, 1885 - syn of: Coelatura ratidota (Charmes, 1885)
eupygus, Unio eupygus Da Silva e Castro, 1885 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
eurhynchus, Unio eurhynchus Küster, 1861 - syn of: Diplodon expansus eurhynchus (Küster, 1861)
euscaphys, Anemina euscaphys (Heude, 1879)
eusomata, Anodonta eusomata Servain, 1888 - syn of: Anodonta cygnea (Linnaeus, 1758)
euthymeana, Anodonta euthymeana Locard, 1884 - syn of: Anodonta cygnea (Linnaeus, 1758)
euthymeanus, Unio euthymeanus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
evansi, Unio evansi Adams & Angas, 1864 - syn of: Velesunio ambiguus (Philippi, 1847)
evitatus, Unio evitatus Lea, 1866 - syn of: Radiatula caerulea (Lea, 1831)
exactus, Unio exactus Lea, 1858 - syn of: Unio abbevillensis Lea, 1857
exanthematicus, Pressidens exanthematicus (Küster, 1861)
excavatus, Lampsilis excavatus Lea, 1857 - syn of: Lampsilis ornata Conrad, 1835
excentrica, Anodonta excentrica Schlüter, 1838 - syn of: Anodonta cygnea (Linnaeus, 1758)
excultus, Unio excultus Conrad, 1838 - syn of: Uniomerus declivis (Say, 1831)
excurvata, Anodonta excurvata De Kay, 1843 - syn of: Anodonta cataracta Say, 1817
exilis, Pilsbryoconcha exilis (Lea, 1839)
exilis, Anodon exilis Sowerby, 1870 - syn of: Pyganodon fragilis (Lamarck, 1819)
exilis compressa, Pilsbryoconcha exilis compressa (Von Martens, 1860)
eximius, Physunio eximius (Lea, 1856)
exolescens, Trapezoideus exolescens (Gould, 1843)
exolescens comptus, Trapezoideus exolescens comptus (Deshayes, 1875)
exolescens pallegoixi, Trapezoideus exolescens pallegoixi (Sowerby, 1867)
exotica, Anodonta exotica Lamarck, 1819 - syn of: Anodontites trapesialis exotica (Lamarck, 1818)
exoticus, Anodon exoticus Sowerby, 1867 - syn of: Anodontites trapesialis exotica (Lamarck, 1818)
expansus, Unio expansus Küster, 1856 - syn of: Diplodon expansus (Küster, 1853)
explicata, Cyrtonaias explicata (Morelet, 1849)
explicatus, Unio explicatus Morelet, 1849 - syn of: Cyrtonaias livida (Simpson, 1900)
expressa, Pilsbryoconcha expressa (Von Martens, 1900)
extensus, Unio extensus Lea, 1857 - syn of: Elliptio pullata (Lea, 1856)
extremalis, Unio extremalis Martynov & Tshernyshev, 1992 - syn of: Nodularia douglasiae (Gray, 1834)
ezonis, Unio ezonis Kuroda, 1950 - syn of: Nodularia douglasiae (Gray, 1834)
faba, Unio faba D'Orbigny, 1835 - syn of: Rhipidodonta charruana faba (D'Orbigny, 1835)
fabaceus, Unio fabaceus Lea, 1861 - syn of: Villosa umbrans (Lea, 1857)
fabagina, Unionetta fabagina (Deshayes & Jullien, 1874)
fabalis, Villosa fabalis (Lea, 1831)
fabilis, Villosa fabilis Lea, 1831 - syn of: Villosa fabalis (Lea, 1831)
fabula, Pegias fabula (Lea, 1838)
fagoti, Anodonta fagoti Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
faidherbei, Coelatura faidherbei Jousseaume, 1886 - syn of: Coelatura aegyptiaca (Cailliaud, 1827)
falcata, Anodonta falcata Drouët, 1879 - syn of: Anodonta anatina (Linnaeus, 1758)
falcata, Alasmodon falcata Gould, 1850 - syn of: Margaritifera falcata (Gould, 1850)
falcatulus, Unio tumidus falcatulus Drouët
fallaciosa, Micronaias fallaciosa (Simpson, 1914)
fallaciosus, Lampsilis teres fallaciosus Rafinesque
fallax, Unio fallax Lea, 1857 - syn of: Villosa lienosa (Conrad, 1834)
falsus, Unio falsus Bourguignat, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
famelicus, Unio famelicus Gould, 1850 - syn of: Diplodon granosus (Bruguière, 1792)
fannyae, Haasodonta fannyae (Johnson, 1948)
fantozatiana, Anodonta fantozatiana Heude, 1885 - syn of: Sinanodonta woodiana (Lea, 1834)
fascellinus, Unio fascellinus Servain, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
fasciola, Lampsilis fasciola Rafinesque, 1820
fasciolaris, Ptychobranchus fasciolaris (Rafinesque, 1820)
fasciolus, Unio fasciolus Conrad, 1853 - syn of: Hamiota subangulata (Lea, 1840)
fassinans, Unio fassinans Lea, 1868 - syn of: Fusconaia barnesiana (Lea, 1829)
fassinans rhomboidea, Pleurobema fassinans rhomboidea Simpson, 1900 - syn of: Fusconaia barnesiana (Lea, 1829)
favidens, Parreysia favidens (Benson, 1862)
favidens assamensis, Parreysia favidens assamensis Preston, 1912 - syn of: Parreysia favidens (Benson, 1862)
favidens chrysis, Unio favidens chrysis Benson, 1862 - syn of: Parreysia favidens (Benson, 1862)
favidens deltae, Unio favidens deltae Benson, 1862 - syn of: Parreysia favidens (Benson, 1862)
favidens densa, Unio favidens densa Benson, 1862 - syn of: Parreysia favidens (Benson, 1862)
favidens trigona, Unio favidens trigona Benson, 1862 - syn of: Parreysia favidens (Benson, 1862)
favidens viridula, Unio favidens viridula Benson, 1862 - syn of: Parreysia favidens (Benson, 1862)
favosus, Unio favosus Lea, 1856 - syn of: Pleurobema georgianum Lea, 1841
fayumensis, Unio fayumensis Pilsbry & Bequaert, 1927 - syn of: Unio abyssinicus Von Martens, 1866
feae, Parreysia feae Tapparone-Canefri, 1889
feddeni, Parreysia feddeni Theobald, 1873
fedderseni, Anodonta fedderseni Westerlund, 1898 - syn of: Anodonta cygnea (Linnaeus, 1758)
feliciani, Unio feliciani Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
feminalis, Anodon feminalis Gould, 1850 - syn of: Gonidea angulata (Lea, 1838)
fenouilii, Anodon fenouilii Heude, 1878 - syn of: Sinanodonta woodiana (Lea, 1834)
ferrarisii, Anodontes ferrarisii D'Orbigny, 1835 - syn of: Anodontites ferrarisii (D'Orbigny, 1835)
ferrarissi, Anodonta ferrarissi Bonetto & Mansur, 1970 - syn of: Anodontites ferrarisii (D'Orbigny, 1835)
ferrissii, Unio ferrissii Marsh, 1891 - syn of: Elliptio jayensis Lea, 1838
ferruginea, Anodonta ferruginea Lea, 1840 - syn of: Anodontoides ferussacianus (Lea, 1834)
ferrugineus, Physunio ferrugineus Annandale, 1918
ferussacianus, Anodontoides ferussacianus (Lea, 1834)
fibrosa, Aculamprotula fibrosa (Heude, 1877)
fibuloides, Pleurobema fibuloides (Lea, 1859)
fictum, Pleurobema fictum Frierson, 1927 - syn of: Pleurobema rubellum Conrad, 1834
filippiana, Anodonta filippiana Heude, 1885 - syn of: Sinanodonta woodiana (Lea, 1834)
fimbriata, Disconaias fimbriata (Frierson, 1907)
firmus, Unio firmus Lea, 1866 - syn of: Diplodon delodontus (Lamarck, 1819)
firmus boettgeri, Unio firmus boettgeri Ihering, 1893 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
fischerianus, Contradens contradens fischerianus Morlet
fischerianus, Unio fischerianus Morlet, 1883 - syn of: Contradens contradens fischerianus (Morlet, 1883)
fisheriana, Elliptio fisheriana (Lea, 1838)
fissicosta, Potamilus fissicosta Meek, 1873 † - syn of: Opisthoptera casei (Meek & Worthen, 1866) † (FOSSIL)
flagellatus, Unio flagellatus Say, 1830 - syn of: Epioblasma obliquata (Rafinesque, 1820)
flava, Fusconaia flava (Rafinesque, 1820)
flava, Anodon flava Anthony, 1865 - syn of: Pyganodon fragilis (Lamarck, 1819)
flava undata, Fusconaia flava undata Parmalee, 1967
flavescens, Unio flavescens Lea, 1845 - syn of: Ptychobranchus greenii (Conrad, 1834)
flavidulum, Pleurobema flavidulum Lea, 1861 - syn of: Pleurobema perovatum Conrad, 1834
flavotincta, Anemina arcaeformis flavotincta Von Martens
flavus, Unio flavus Küster, 1861 - syn of: Parreysia corrugata (Müller, 1774)
flexuosa, Epioblasma flexuosa (Rafinesque, 1820)
flexuosa, Quadrula flexuosa Simpson, 1900 - syn of: Fusconaia subrotunda (Lea, 1831)
flexuosa bullata, Quadrula flexuosa bullata Rafinesque, 1820 - syn of: Epioblasma flexuosa (Rafinesque, 1820)
florentina, Epioblasma florentina (Lea, 1857)
florentina aureola, Epioblasma florentina aureola Jones & Neves, 2010 - syn of: Epioblasma florentina (Lea, 1857)
florentina curtisii, Dysnomia florentina curtisii Frierson & Utterback, 1916 - syn of: Epioblasma florentina (Lea, 1857)
florentina walkeri, Epioblasma florentina walkeri Wilson & Clark, 1914 - syn of: Epioblasma florentina (Lea, 1857)
florida, Anodonta florida Heude, 1881 - syn of: Sinanodonta woodiana (Lea, 1834)
floridensis, Lampsilis floridensis (Lea, 1857)
flucki, Sphenonaias flucki (Bartsch, 1906)
fluminea, Anemina fluminea (Heude, 1877)
fluviatica, Anodonta fluviatica Rosen, 1905 - syn of: Anodonta cygnea (Linnaeus, 1758)
fluviatilis, Anodonta fluviatilis Bosc, 1801 - syn of: Anodonta cataracta Say, 1817
fluviatilis, Unio fluviatilis Green, 1827 - syn of: Unio abbevillensis Lea, 1857
foai, Burtonia foai Mabille, 1901 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
foeda, Anodonta foeda Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
fokkesi, Unio fokkesi Dunker, 1852 - syn of: Diplodon delodontus (Lamarck, 1819)
foliaceus, Unio foliaceus Gould, 1843 - syn of: Trapezoideus exolescens (Gould, 1843)
foliaceus zayleymanensis, Trapezoideus foliaceus zayleymanensis Preston, 1912 - syn of: Trapezoideus exolescens (Gould, 1843)
foliata, Dysnomia foliata Hildreth, 1828 - syn of: Epioblasma flexuosa (Rafinesque, 1820)
foliatus, Unio foliatus Hildreth, 1828 - syn of: Epioblasma flexuosa (Rafinesque, 1820)
folliculata, Elliptio folliculata Lea, 1838
fontainianus, Unio fontainianus D'Orbigny, 1835 - syn of: Diplodon fontainianus (D'Orbigny, 1835)
footei, Arcidopsis footei (Theobald, 1876)
footiana, Anodonta footiana Lea, 1840 - syn of: Anodonta grandis Say, 1829
forbesiana, Anodonta forbesiana Lea, 1860 - syn of: Anodontites trapesialis forbesiana (Lea, 1860)
forbesianus, Unio forbesianus Lea, 1852 - syn of: Elliptio congaraea (Lea, 1831)
foremanianus, Ptychobranchus foremanianus (Lea, 1842)
forschammeri, Anodonta forschammeri Locard, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
forschhammeri, Anodonta forschhammeri Westerlund, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
forsheyi, Unio forsheyi Lea, 1859 - syn of: Quadrula apiculata Say, 1829
foucauldiana, Limnium foucauldiana Pallary, 1936 - syn of: Unio gibbus Spengler, 1793
fouladougouensis, Coelatura fouladougouensis Jousseaume, 1886 - syn of: Coelatura aegyptiaca (Cailliaud, 1827)
fourneli, Unio fourneli Bourguignat, 1882 - syn of: Unio tumidus Retzius, 1788
fourtaui, Unio fourtaui Pallary, 1903 - syn of: Nitia teretiuscula (Philippi, 1847)
fragilima, Anodonta fragilima Locard, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
fragilis, Pyganodon fragilis (Lamarck, 1819)
fragilis, Anodonta fragilis Lamarck, 1819 - syn of: Pyganodon fragilis (Lamarck, 1819)
fragilis, Unio fragilis Nevill, 1877 - syn of: Trapezoideus exolescens (Gould, 1843)
fragilis, Leptodea fragilis Rafinesque, 1820
fragilis, Unio fragilis Reeve, 1865 - syn of: Diplodon chilensis (Gray, 1852)
fragillima, Anodonta fragillima Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
fragosa, Quadrula fragosa Conrad, 1835
framesi, Indonaia framesi Connolly, 1925 - syn of: Coelatura mossambicensis (Von Martens, 1860)
franconica, Unio franconica Dehm, 1935 † (FOSSIL)
fraterna, Elliptio fraterna (Lea, 1852)
frayssii, Anodonta frayssii Réquien, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
friersoni, Physunio friersoni Simpson, 1914
friersoni, Unio friersoni Wright, 1896 - syn of: Pleurobema riddellii Lea, 1861
friniana, Anodon friniana Heude, 1878 - syn of: Sinanodonta woodiana (Lea, 1834)
fruhstorferi, Lanceolaria grayana fruhstorferi Dautzenberg
fruhstorferi, Unio fruhstorferi Dautzenberg, 1900 - syn of: Lanceolaria grayana fruhstorferi Dautzenberg, 1900
fuliginea, Anodonta fuliginea Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
fuliginosus, Unio fuliginosus Lea, 1845 - syn of: Unio abbevillensis Lea, 1857
fullerkati, Lampsilis fullerkati Johnson, 1984
fulmineus, Unio fulmineus Philippi, 1847 - syn of: Parreysia corrugata (Müller, 1774)
fultoni, Rhombuniopsis fultoni Moskvicheva & Starobogatov, 1973
fulvaster, Contradens fulvaster (Drouët & Chaper, 1892)
fulvus, Unio fulvus Lea, 1834 - syn of: Elliptio congaraea (Lea, 1831)
fulvus fuscata, Bariosta fulvus fuscata Rafinesque, 1831 - syn of: Elliptio dilatata Rafinesque, 1820
fulvus rufa, Bariosta fulvus rufa Rafinesque, 1831 - syn of: Elliptio dilatata Rafinesque, 1820
fumata, Elliptio fumata (Lea, 1857)
funebralis, Unio funebralis Lea, 1860 - syn of: Rhipidodonta funebralis (Lea, 1834)
furvus, Unio furvus Conrad, 1834 - syn of: Pleurobema rubellum Conrad, 1834
fusca, Anodon fusca Heude, 1878 - syn of: Sinanodonta woodiana (Lea, 1834)
fuscata, Anodonta fuscata Gallenstein, 1852 - syn of: Anodonta cygnea (Linnaeus, 1758)
fuscoviridis, Anemina fuscoviridis Moskvicheva, 1973 - syn of: Anemina euscaphys (Heude, 1879)
fuscula, Crassunio fuscula Ziegler, 1835 - syn of: Unio crassus Philipsson, 1788
fusculus, Unio fusculus Rossmässler, 1836 - syn of: Unio crassus Philipsson, 1788
gabbianus, Unio gabbianus Lea, 1868 - syn of: Pachynaias nicaraguensis (Lea, 1868)
gabilloti, Anodonta gabilloti Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
gabonensis, Coelatura gabonensis (Küster, 1862)
gabonensis minor, Coelatura gabonensis minor Germain, 1907
gaillardi, Unio gaillardi Germain, 1909 - syn of: Pilsbryoconcha carinifera (Conrad, 1837)
gallandi, Anodonta gallandi Bourguignat, 1880 - syn of: Anodonta cygnea (Linnaeus, 1758)
gallensteini, Anodonta gallensteini Kobelt, 1892 - syn of: Anodonta cygnea (Linnaeus, 1758)
gallica, Anodonta gallica Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
gallicus, Unio gallicus Bourguignat, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
gandiensis, Potomida gandiensis Drouët, 1888 - syn of: Potomida littoralis (Cuvier, 1798)
gangrenosus, Unio gangrenosus Schmidt, 1840 - syn of: Unio crassus Philipsson, 1788
gargottae, Unio gargottae Philippi, 1836 - syn of: Unio mancus Lamarck, 1819
garumnae, Unio garumnae Grateloup, 0 - syn of: Pseudunio auricularius (Spengler, 1793)
gassiei, Unio gassiei Grateloup, 1856 - syn of: Diplodon chilensis (Gray, 1852)
gassiesei, Unio gassiesei Grateloup, 1856 - syn of: Diplodon chilensis (Gray, 1852)
gastonensis, Unio gastonensis Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
gaudichaudii, Unio gaudichaudii Eydoux, 1838 - syn of: Radiatula caerulea (Lea, 1831)
gaudioni, Anodonta gaudioni Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
geayi, Germainaia geayi (Germain, 1911)
geddingsianus, Unio geddingsianus Lea, 1840 - syn of: Elliptio cylindracea Frierson, 1927
geminus, Unio geminus Lea, 1856 - syn of: Unio abbevillensis Lea, 1857
generosus, Lamellidens generosus (Gould, 1847)
generosus angustior, Unio generosus angustior Hanley & Theobald, 1876 - syn of: Lamellidens generosus (Gould, 1847)
genezarethanus, Unio genezarethanus Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
genthii, Unio genthii Lea, 1857 - syn of: Villosa constricta (Conrad, 1838)
gentilis, Unio gentilis Hesse, 1911 - syn of: Unio pictorum (Linnaeus, 1758)
geometricus, Unio geometricus Lea, 1834 - syn of: Uniomerus declivis (Say, 1831)
georgiana, Anodonta georgiana Drouët, 1881 - syn of: Anodonta cyrea Drouët, 1881
georgianum, Pleurobema georgianum Lea, 1841
georgiensis, Beringiana georgiensis Bogatov & Starobogatov, 2001 - syn of: Anodonta beringiana (Middendorff, 1851)
georgina, Unio georgina Lamarck, 1819 - syn of: Unio abbevillensis Lea, 1857
georginensis, Beringiana georginensis Graf, 2007 - syn of: Anodonta beringiana (Middendorff, 1851)
georginesis, Beringiana georginesis Bogatov & Starobogatov, 2001 - syn of: Anodonta beringiana (Middendorff, 1851)
gerbidoni, Unio gerbidoni Eydoux, 1838 - syn of: Radiatula caerulea (Lea, 1831)
gerhardtii, Unio gerhardtii Lea, 1862 - syn of: Hamiota altilis (Conrad, 1834)
germanus, Unio germanus Lea, 1861 - syn of: Toxolasma paulus (Lea, 1840)
gesnerii, Anodonta gesnerii Lea, 1858 - syn of: Anodonta grandis Say, 1829
gesnerii, Unio gesnerii Lea, 1874 - syn of: Elliptio fumata (Lea, 1857)
gestroi, Anodonta gestroi Bourguignat, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
gestroi, Leguminaia gestroi Bourguignat, 1883 - syn of: Microcondylaea compressa (Menke, 1830)
gianellii, Unio gianellii Tapparone-Canefri, 1889 - syn of: Lamellidens scutum (Sowerby, 1868)
gibba, Anodon gibba Sowerby, 1867 - syn of: Sinanodonta woodiana (Lea, 1834)
gibbera, Pleuronaia gibbera (Lea, 1838)
gibbesianus, Unio gibbesianus Lea, 1852 - syn of: Elliptio congaraea (Lea, 1831)
gibbosa, Pyganodon gibbosa (Say, 1824)
gibbosa, Amblema gibbosa Rafinesque, 1820 - syn of: Epioblasma torulosa (Rafinesque, 1820)
gibbosa difformis, Amblema gibbosa difformis Rafinesque, 1820 - syn of: Epioblasma torulosa (Rafinesque, 1820)
gibbosa olivacea, Amblema gibbosa olivacea Rafinesque, 1820 - syn of: Epioblasma torulosa (Rafinesque, 1820)
gibbosa radiata, Amblema gibbosa radiata Rafinesque, 1820 - syn of: Epioblasma torulosa (Rafinesque, 1820)
gibbosus, Unio gibbosus Barnes, 1823 - syn of: Elliptio dilatata Rafinesque, 1820
gibbosus, Microcondylus gibbosus Drouët, 1879 - syn of: Microcondylaea compressa (Menke, 1830)
gibbosus armathwaitensis, Unio gibbosus armathwaitensis Wright, 1898 - syn of: Elliptio dilatata Rafinesque, 1820
gibbosus delicatus, Elliptio gibbosus delicatus Simpson, 1900 - syn of: Elliptio dilatata Rafinesque, 1820
gibbosus perobliquus, Unio gibbosus perobliquus Conrad, 1836 - syn of: Epioblasma obliquata (Rafinesque, 1820)
gibbum, Anodon gibbum Benson, 1842 - syn of: Sinanodonta woodiana (Lea, 1834)
gibbus, Unio gibbus Spengler, 1793
giberti, Unio giberti Locard, 1889 - syn of: Unio tumidus Retzius, 1788
gigantea, Magnonaias gigantea Barnes, 1823 - syn of: Magnonaias nervosa (Rafinesque, 1820)
gigantea, Anodonta gigantea Lea, 1838 - syn of: Anodonta grandis Say, 1829
gigantea, Anodonta gigantea Locard, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
giganteus, Unionelloides giganteus (Mongin, 1963) † (FOSSIL)
giganteus, Cuneopsis giganteus Mongin, 1963 † - syn of: Unionelloides giganteus (Mongin, 1963) † (FOSSIL)
giganteus, Anodon giganteus Spix & Wagner, 1827 - syn of: Anodontites trapesialis giganteus (Spix & Wagner, 1827)
giraldesi, Anodonta giraldesi Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
giraudi, Grandidieria burtoni giraudi Bourguignat
giullaini, Anodonta giullaini Adams & Adams, 1857 - syn of: Chambardia wahlbergi (Krauss, 1848)
glabra, Anodonta glabra Stabile, 1845 - syn of: Anodonta cygnea (Linnaeus, 1758)
glabrata, Unio glabrata Lamarck, 1819 - syn of: Unio abbevillensis Lea, 1857
gladiator, Oxynaia gladiator (Ancey, 1881)
gladiola, Lanceolaria gladiola (Heude, 1874)
glandulosa, Anodon glandulosa Anthony, 1865 - syn of: Pyganodon fragilis (Lamarck, 1819)
glans, Toxolasma lividus glans Lea
glauca, Anodonta glauca Crosse & Fischer, 1883 - syn of: Anodontites trapesialis (Lamarck, 1818)
glauca, Anodon glauca Gould, 1850 - syn of: Anodontites crispata (Bruguière, 1792)
glauca sinaloensis, Anodonta glauca sinaloensis Crosse & Fischer, 1883 - syn of: Anodontites trapesialis sinaloensis Crosse & Fischer, 1883
glaucina, Anodonta glaucina Drouët, 1894 - syn of: Anodonta cygnea (Linnaeus, 1758)
glaucinus, Unio glaucinus Porro, 1838 - syn of: Unio mancus Lamarck, 1819
gliscerus, Unio gliscerus Locard, 1893 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
globatus, Unio globatus Lea, 1871 - syn of: Fusconaia subrotunda (Lea, 1831)
globitriangularis, Unionelloides globitriangularis Gu, 1962 † (FOSSIL)
globosa, Symphynota globosa Lea, 1834 - syn of: Potamilus capax Green, 1832
globosula, Anemina globosula (Heude, 1878)
globulosus, Unionelloides globulosus (Mongin, 1963) † (FOSSIL)
globulosus, Cuneopsis globulosus Mongin, 1963 † - syn of: Unionelloides globulosus (Mongin, 1963) † (FOSSIL)
globulosus, Unio globulosus Von Martens, 1900 - syn of: Micronaias arata (Lea, 1845)
globulosus elongata, Cuneopsis globulosus elongata Mongin, 1963 † - syn of: Unionelloides globulosus (Mongin, 1963) † (FOSSIL)
glossodes, Anodonta glossodes Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
goascoranensis, Nephronaias goascoranensis (Lea, 1858)
godetiana, Unio godetiana Clessin, 1887 - syn of: Unio tumidus Retzius, 1788
goesi, Anodonta goesi Westerlund, 1898 - syn of: Anodonta cygnea (Linnaeus, 1758)
gommeryi, Coelatura gommeryi Musalizi, 2017 † (FOSSIL)
gontieri, Unio gontieri Bourguignat, 1856 - syn of: Unio crassus Philipsson, 1788
gottschei, Lamprotula gottschei (Von Martens, 1894)
gouldii, Unio gouldii Lea, 1845 - syn of: Villosa lienosa (Conrad, 1834)
gowhattensis, Parreysia gowhattensis (Theobald, 1873)
grabaui, Unio grabaui Martinson, 1956 † (FOSSIL)
gracilentus, Unio gracilentus Lea, 1857 - syn of: Elliptio arctata Conrad, 1834
gracilis, Simpsonella gracilis (Lea, 1850)
gracilis, Rhabdotophorus gracilis Russell, 1935 † (FOSSIL)
gracilis, Microcondylaea gracilis Strubell, 1897 - syn of: Rectidens sumatrensis (Dunker, 1852)
gracillimus, Nodularia gracillimus Rolle, 1904 - syn of: Lanceolaria grayana (Lea, 1834)
graeca, Anodonta graeca Drouët, 1892 - syn of: Anodonta cygnea (Linnaeus, 1758)
graeteri, Leguminaia graeteri Kobelt, 1913 - syn of: Leguminaia wheatleyi (Lea, 1862)
granadensis, Micronaias granadensis (Lea, 1868)
granadensis, Anodonta granadensis Lea, 1868 - syn of: Anodontites inaequivalva (Lea, 1868)
grandensis, Cyrtonaias grandensis Metcalf, 1982 - syn of: Cyrtonaias tampicoensis (Lea, 1838)
grandidens, Unio grandidens Lea, 1862 - syn of: Lamprotula nodulosa (Wood, 1815)
grandidieri, Unio grandidieri Bourguignat, 1883 - syn of: Coelatura hauttecoeuri (Bourguignat, 1883)
grandidieriana, Burtonia grandidieriana Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
grandioides, Anodonta grandioides Lea, 1868 - syn of: Anodonta grandis Say, 1829
grandis, Unio grandis Rossmässler, 1842 - syn of: Unio pictorum (Linnaeus, 1758)
grandis, Anodonta grandis Say, 1829
grandis corpulenta, Anodonta grandis corpulenta Cooper, 1834
grandis simpsoniana, Anodonta grandis simpsoniana Lea, 1861
granosa, Unio granosa Bruguière, 1792 - syn of: Diplodon granosus (Bruguière, 1792)
granosus, Unio granosus Bruguière, 1792 - syn of: Diplodon multistriatus (Lea, 1831)
grantianus, Unio grantianus Bourguignat, 1883 - syn of: Coelatura hauttecoeuri (Bourguignat, 1883)
granulatus, Unio granulatus Lea, 1861 - syn of: Toxolasma paulus (Lea, 1840)
granuliferus, Unio granuliferus Dunker, 1848 - syn of: Diplodon granosus granuliferus (Dunker, 1848)
granulosa, Grandidieria burtoni granulosa Bourguignat
gratelupeana, Anodonta gratelupeana Gassies, 1849 - syn of: Pseudanodonta elongata (Holandre, 1836)
gratiosus, Contradens gratiosus (Philippi, 1845)
gratus, Unio gratus Ihering, 1893 - syn of: Rhipidodonta grata (Lea, 1860)
gratus, Unio gratus Lea, 1860 - syn of: Rhipidodonta grata (Lea, 1860)
gravatus, Unio gravatus Drouët, 1893 - syn of: Unio abrantesianus Locard, 1899
gravida, Grandidieria burtoni gravida Bourguignat
gravida, Anodonta gravida Drouët, 1879 - syn of: Anodonta cygnea (Linnaeus, 1758)
gravidus, Physunio gravidus Lea, 1856 - syn of: Physunio superbus (Lea, 1843)
grayana, Lanceolaria grayana (Lea, 1834)
grayana fruhstorferi, Lanceolaria grayana fruhstorferi Dautzenberg, 1900
grayana oxyrhyncha, Lanceolaria grayana oxyrhyncha Von Martens, 1861 - syn of: Lanceolaria oxyrhyncha Von Martens, 1861
grayanus, Unio grayanus Schrenck, 1867 - syn of: Lanceolaria cylindrica (Simpson, 1900)
grayanus decurvata, Unio grayanus decurvata Schrenck, 1867 - syn of: Lanceolaria cylindrica (Simpson, 1900)
grayensis, Unio grayensis Jay, 1835 - syn of: Lanceolaria grayana (Lea, 1834)
grayii, Unio grayii Griffith & Pidgeon, 1833 - syn of: Lanceolaria grayana (Lea, 1834)
greeffeanus, Unio greeffeanus Ihering, 1893 - syn of: Diplodon expansus (Küster, 1853)
greenii, Ptychobranchus greenii (Conrad, 1834)
gregalis, Anodonta gregalis Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
gregorii, Unio gregorii Kobelt, 1912 - syn of: Unio crassus Philipsson, 1788
grelloisianus, Unio grelloisianus Bourguignat, 1856 - syn of: Unio terminalis Bourguignat, 1852
griffithianus, Unio griffithianus Lea, 1834 - syn of: Unio abbevillensis Lea, 1857
grijalvae, Anodonta grijalvae Morelet, 1884 - syn of: Anodonta grandis Say, 1829
grossa, Anodonta grossa Gallenstein, 1852 - syn of: Anodonta cygnea (Linnaeus, 1758)
gruveli, Anodonta gruveli Pérès, 1938 - syn of: Anodonta anatina (Linnaeus, 1758)
guadalupensis, Quincuncina guadalupensis Wurtz, 1950 - syn of: Fusconaia mitchelli (Dall, 1896)
guahybae, Unio guahybae Simpson, 1900 - syn of: Diplodon expansus (Küster, 1853)
guaraniana, Unio guaraniana D'Orbigny, 1835 - syn of: Rhipidodonta hylaea guaranianus (D'Orbigny, 1835)
guarianus, Unio guarianus Lea, 1852 - syn of: Rhipidodonta hylaea guaranianus (D'Orbigny, 1835)
guatemalanus, Elliptio guatemalanus Von Martens, 1900 - syn of: Nephronaias goascoranensis (Lea, 1858)
guatemalensis, Psorula guatemalensis (Simpson, 1900)
guatybae, Unio guatybae Johnson, 1971 - syn of: Diplodon expansus (Küster, 1853)
gubernaculum, Unio gubernaculum Reeve, 1865 - syn of: Epioblasma torulosa (Rafinesque, 1820)
guillaini, Anodonta guillaini Récluz, 1850 - syn of: Chambardia wahlbergi (Krauss, 1848)
guillemeti, Unio guillemeti Bourguignat, 1886 - syn of: Coelatura horei (Smith, 1880)
guilliana, Anodonta guilliana Lea, 1852 - syn of: Chambardia wahlbergi (Krauss, 1848)
gundlachi, Nephronaias gundlachi (Dunker, 1858)
guppyi, Unio guppyi Smith, 1885 - syn of: Hyridella guppyi (Smith, 1885)
guppyi aipianus, Leiovirgus guppyi aipianus McMichael, 1956 - syn of: Hyridella guppyi (Smith, 1885)
haasii, Microdondylaea haasii Kobelt, 1914 - syn of: Leguminaia wheatleyi (Lea, 1862)
haconensis, Unio haconensis Ihering, 1893 - syn of: Inversiunio jokohamensis (Ihering, 1893)
haddletoni, Lampsilis haddletoni Athearn, 1964
hageni, Pseudodon hageni (Strubell, 1897)
hagenmulleri, Anodonta hagenmulleri Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
hagleri, Pleurobema hagleri Frierson, 1900 - syn of: Pleurobema rubellum Conrad, 1834
hainesiana, Chamberlainia hainesiana (Lea, 1856)
haleianus, Unio haleianus Lea, 1842 - syn of: Toxolasma texasiensis Lea, 1838
hallenbeckii, Unio hallenbeckii Lea, 1859 - syn of: Elliptio fumata (Lea, 1857)
hamili, Unio hamili McLearn, 1929 † (FOSSIL)
hamyanus, Unio mancus hamyanus Bourguignat
hanleyianum, Pleurobema hanleyianum Lea, 1852
haricotti, Nephritica haricotti (Frierson, 1927)
harlandi, Anodonta harlandi Baird & Adams, 1867 - syn of: Sinanodonta woodiana (Lea, 1834)
harmandi, Pseudodon harmandi Crosse & Fischer, 1876 - syn of: Pseudodon inoscularis Gould, 1844
harpethensis, Anodonta harpethensis Lea, 1840 - syn of: Anodonta grandis Say, 1829
hartfieldorum, Utterbackiana hartfieldorum (Williams, Bogan & Garner, 2009)
hartii, Elliptio hartii Wright, 1934 - syn of: Elliptio jayensis Lea, 1838
hartmanianum, Pleurobema hartmanianum (Lea, 1860)
hartwrightii, Unio hartwrightii Wright, 1896 - syn of: Elliptio monroensis Lea, 1843
hassanica, Pseudopotomida hassanica Moskvicheva & Starobogatov, 1973 - syn of: Inversidens pantoensis (Neumayr, 1899)
hassiae, Unio hassiae Haas, 1908 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
hattmanni, Unio hattmanni Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
hauttecoeuri, Coelatura hauttecoeuri (Bourguignat, 1883)
hauttecoeuri kyogae, Coelatura hauttecoeuri kyogae Mandahl-Barth, 1954
haysiana, Dysnomia haysiana (Lea, 1834)
hazayana, Anodonta hazayana Servain, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
hazelhurstianus, Unio hazelhurstianus Lea, 1858 - syn of: Elliptio lanceolata Lea, 1827
heardi, Utterbackiana heardi Gordon & Hoeh, 1995
hecartiana, Anodonta hecartiana Locard, 1884 - syn of: Anodonta cygnea (Linnaeus, 1758)
heckingi, Unio heckingi Colbeau, 1868 - syn of: Unio tumidus Retzius, 1788
hedeius, Oxynaia micheloti hedeius Mabille
hedeius, Unio hedeius Mabille, 1889 - syn of: Oxynaia micheloti hedeius (Mabille, 1889)
heermannii, Unio heermannii Lea, 1862 - syn of: Cyrtonaias tampicoensis (Lea, 1838)
heldii, Unio heldii Küster, 1854 - syn of: Unio crassus Philipsson, 1788
helvetica, Anodonta helvetica Bourguignat, 1862 - syn of: Anodonta cygnea (Linnaeus, 1758)
hembeli, Unio hembeli Conrad, 1838 - syn of: Margaritifera hembeli (Conrad, 1838)
henriquesi, Anodonta henriquesi Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
henriquezi, Anodonta henriquezi Locard, 1884 - syn of: Anodonta cygnea (Linnaeus, 1758)
hepatica, Elliptio hepatica (Lea, 1859)
herciniana, Anodonta herciniana Servain, 1889 - syn of: Anodonta cygnea (Linnaeus, 1758)
herculea, Anodonta herculea Middendorff, 1848 - syn of: Cristaria plicata (Leach, 1815)
heres, Unio heres Neumayr, 1899 - syn of: Rhombuniopsis superstes (Neumayr, 1899)
hermanni, Nephronaias hermanni (Haas, 1929)
hermanni, Anodonta hermanni Bourguignat, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
hermosus, Unio hermosus Bourguignat, 1889 - syn of: Nyassunio nyassaensis (Lea, 1864)
herodes, Unio herodes Kobelt & Rolle, 1895 - syn of: Unio terminalis Bourguignat, 1852
herrerae, Psoronaias herrerae (Marshall, 1923)
hertwigii, Anodonta hertwigii Ihering, 1890 - syn of: Anodontites moricandii (Lea, 1860)
heterodon, Alasmidonta heterodon (Lea, 1830)
heudei, Cuneopsis heudei (Heude, 1874)
heudei, Anodonta heudei Neumayr, 1899 - syn of: Anemina arcaeformis (Heude, 1877)
hexameri, Unio hexameri Haas, 1911 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
hians, Anodonta hians Sowerby, 1867 - syn of: Leila blainvilliana (Lea, 1834)
hians, Unio hians Valenciennes, 1821 - syn of: Alasmidonta undulata (Say, 1817)
higginsii, Lampsilis higginsii Lea, 1857
higginsii grandis, Eurynia higginsii grandis Simpson, 1914 - syn of: Lampsilis higginsii Lea, 1857
hildrethi, Unio hildrethi Delessert, 1841 - syn of: Hemistena lata Rafinesque, 1820
hildrethianus, Unio hildrethianus Lea, 1834 - syn of: Simpsoniconcha ambigua (Say, 1825)
hilvetica, Anodonta hilvetica Lea, 1870 - syn of: Anodonta cygnea (Linnaeus, 1758)
hinkleyi, Unio hinkleyi Wright, 1888 - syn of: Elliptio jayensis Lea, 1838
hippopotami, Potomida hippopotami Bourguignat, 1869 - syn of: Potomida littoralis (Cuvier, 1798)
hirasei, Inversidens hirasei Haas, 1911 - syn of: Inversiunio reinianus (Kobelt, 1879)
hispalensis, Potomida hispalensis Kobelt, 1887 - syn of: Potomida littoralis umbonata Rossmässler, 1844
hispanus, Unio hispanus Rossmässler, 1844 - syn of: Unio abrantesianus Locard, 1899
hjalmarsoni, Nephronaias hjalmarsoni (Dunker, 1858)
hochstetteri, Unio hochstetteri Dunker, 1862 - syn of: Echyridella menziesii hochstetteri (Dunker, 1862)
hockingensis, Anodonta hockingensis Call, 1880 - syn of: Anodonta grandis Say, 1829
holstonense, Pleurobema oviforme holstonense Lea
holstonia, Lasmigona holstonia Lea, 1838
holtonis, Anodonta holtonis Lea, 1857 - syn of: Anodontites elongata holtonis (Lea, 1857)
homsensis, Unio homsensis Lea, 1865 - syn of: Margaritifera homsensis (Lea, 1865)
hopetonensis, Elliptio hopetonensis Lea, 1838
horei, Coelatura horei (Smith, 1880)
horei josseti, Coelatura horei josseti Bourguignat, 1886
horei jouberti, Coelatura horei jouberti Bourguignat, 1886
horei lavigeriana, Coelatura horei lavigeriana Bourguignat, 1886
horei menardi, Coelatura horei menardi Bourguignat, 1886
hospitali, Unio hospitali Locard, 1889 - syn of: Unio pictorum (Linnaeus, 1758)
houghtonensis, Anodonta houghtonensis DeCamp, 1881 - syn of: Anodonta grandis Say, 1829
houngdaranica, Parreysia houngdaranica Tapparone-Canefri, 1889 - syn of: Parreysia houngdarauica (Tapparone-Canefri, 1889)
houngdarauica, Parreysia houngdarauica (Tapparone-Canefri, 1889)
houstonensis, Amphinaias houstonensis (Lea, 1859)
huaihensis, Arconaia huaihensis Huang & Li, 2003 - syn of: Arconaia lanceolata (Lea, 1856)
humberti, Anodonta humberti Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
humerosoides, Unio humerosoides Lea, 1868 - syn of: Unio abbevillensis Lea, 1857
humerosus, Unio humerosus Lea, 1868 - syn of: Unio abbevillensis Lea, 1857
humilis, Radiatula humilis (Lea, 1856)
hunganhi, Sinanodonta hunganhi Thach, 2016
hunteri, Unio hunteri Hislop, 1859 † (FOSSIL)
hyalinus, Unio hyalinus Lea, 1845 - syn of: Lasmigona subviridis (Conrad, 1835)
hydatina, Anodonta hydatina Servain, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
hydiana, Lampsilis hydiana Lea, 1838
hylaea, Unio hylaea D'Orbigny, 1835 - syn of: Rhipidodonta hylaea (D'Orbigny, 1835)
hypaeschra, Anodonta hypaeschra Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
hyperephanus, Unio hyperephanus Da Silva e Castro, 1885 - syn of: Unio abrantesianus Locard, 1899
hypoeschra, Anodonta hypoeschra Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
hypoxanthus, Unio hypoxanthus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
hypsiprymna, Coelatura hypsiprymna (Von Martens, 1897)
ibericus, Unio mancus ibericus Altaba
icana, Anodonta icana Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
icterina, Elliptio icterina Conrad, 1834
idrina, Anodonta idrina Spinelli, 1851 - syn of: Anodonta cygnea (Linnaeus, 1758)
idrinella, Anodonta idrinella Bourguignat, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
ignari, Unio ignari Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
ignariformis, Unio ignariformis Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
iguallalensis, Coactunio iguallalensis (Mongin, 1963) † (FOSSIL)
iguallalensis, Chamberlainia iguallalensis Mongin, 1963 † - syn of: Coactunio iguallalensis (Mongin, 1963) † (FOSSIL)
iheringi, Anodonta iheringi Clessin, 1882 - syn of: Anodontites patagonica Lamarck, 1819
iheringi, Unio iheringi Wright, 1898 - syn of: Sphenonaias taumilapana (Conrad, 1855)
illuviosa, Anodonta illuviosa Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
ilqui, Unio mancus ilqui Soleillet
ilysaeca, Anodonta ilysaeca Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
ilysoeca, Anodonta ilysoeca Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
imbecillis, Utterbackiana imbecillis (Say, 1829)
imbricata, Pachynaias imbricata (Mörch, 1861)
imbricata, Anodon imbricata Anthony, 1865 - syn of: Anodonta grandis Say, 1829
imbricatus, Unio imbricatus Hislop, 1859 † (FOSSIL)
immunda, Anodonta immunda Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
impensis, Unionelloides impensis (Huang & Chen, 1980) † (FOSSIL)
impensis, Psilunio impensis Huang & Chen, 1980 † - syn of: Unionelloides impensis (Huang & Chen, 1980) † (FOSSIL)
implicata, Anodonta implicata Say, 1829
impressa, Alasmodonta impressa Anthony, 1865 - syn of: Lasmigona holstonia Lea, 1838
impura, Anodonta impura Say, 1829
inaequalis, Contradens inaequalis (Rochebrune, 1882)
inaequalis, Anodonta inaequalis Tate, 1870 - syn of: Anodontites inaequivalva (Lea, 1868)
inaequivalva, Anodonta inaequivalva Lea, 1868 - syn of: Anodontites inaequivalva (Lea, 1868)
incarnata, Grandidieria burtoni incarnata Bourguignat
incarum, Anodonta incarum Philippi, 1869 - syn of: Anodontites trigona incarum (Philippi, 1869)
incertus, Ptychorhynchus incertus Simpson, 1900 - syn of: Ptychorhynchus murinum (Heude, 1883)
incrassatus, Unio incrassatus Lea, 1840 - syn of: Elliptio crassidens Lamarck, 1819
incurvatus, Unio incurvatus Colbeau, 1868 - syn of: Unio tumidus Retzius, 1788
incurvis, Unio incurvis Say, 1829 - syn of: Obovaria retusa Lamarck, 1819
incurvus, Potomida incurvus Lea, 1831 - syn of: Potomida littoralis umbonata Rossmässler, 1844
indawgyiensis, Lamellidens indawgyiensis Prashad, 1930
indecora, Anodon indecora Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
indefinitus, Unio indefinitus Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
indicus, Unio indicus Sowerby, 1866 - syn of: Parreysia rajahensis (Lea, 1841)
inflata, Amuranodonta inflata Bogatov & Starobogatov, 1996 - syn of: Anemina arcaeformis (Heude, 1877)
inflata, Unio inflata Hecart, 1833 - syn of: Unio tumidus Retzius, 1788
inflata, Anodonta inflata Lea, 1836 - syn of: Anodonta grandis Say, 1829
inflata, Anodonta inflata Rafinesque, 1831 - syn of: Anodonta grandis Say, 1829
inflata, Alasmodon inflata Swainson, 1840 - syn of: Alasmidonta undulata (Say, 1817)
inflata fuscata, Anodonta inflata fuscata Rafinesque, 1831 - syn of: Anodonta grandis Say, 1829
inflata viridis, Anodonta inflata viridis Rafinesque, 1831 - syn of: Anodonta grandis Say, 1829
inflata zonalis, Anodonta inflata zonalis Rafinesque, 1831 - syn of: Anodonta grandis Say, 1829
inflatus, Potamilus inflatus (Lea, 1831)
infrarostratus, Unio infrarostratus Schepman, 1896 - syn of: Caudiculatus caudiculatus (Von Martens, 1866)
infucata, Amphinaias infucata (Conrad, 1834)
infulgens, Unio infulgens Lea, 1874 - syn of: Unio abbevillensis Lea, 1857
infuscus, Unio infuscus Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
ingallsianus, Ensidens ingallsianus (Lea, 1852)
ingrandiensis, Unio ingrandiensis Surrault, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
inornata, Anodon inornata Anthony, 1866 - syn of: Anodonta grandis Say, 1829
inornatus, Physunio inornatus (Lea, 1856)
inoscularis, Pseudodon inoscularis Gould, 1844
insignis, Grandidieria burtoni insignis Ancey
insolidus, Unio insolidus Lea, 1872 - syn of: Lasmigona decorata (Lea, 1852)
instructus, Unio instructus Lea, 1861 - syn of: Pleurobema verum Lea, 1861
insularis, Pressidens insularis (Drouët, 1894)
insulsus, Unio insulsus Lea, 1857 - syn of: Unio abbevillensis Lea, 1857
intemerata, Anodonta intemerata Heude, 1885 - syn of: Sinanodonta woodiana (Lea, 1834)
intercedens, Unio intercedens Lea, 1857 - syn of: Villosa lienosa (Conrad, 1834)
intermedia, Theliderma intermedia (Conrad, 1836)
intermerata, Anodonta intermerata Paetel, 1890 - syn of: Sinanodonta woodiana (Lea, 1834)
interventus, Unio interventus Lea, 1861 - syn of: Pleurobema hanleyianum Lea, 1852
invenustus, Unio invenustus Lea, 1874 - syn of: Elliptio fumata (Lea, 1857)
involuta, Radiatula involuta (Benson, 1856)
irenjensis, Unio irenjensis Kobelt, 1912 - syn of: Unio crassus Philipsson, 1788
irgizlaicus, Unio irgizlaicus Lindholm, 1904 - syn of: Unio crassus Philipsson, 1788
iridella, Friersonia iridella (Pilsbry & Frierson, 1907)
iridinea, Solenaia iridinea (Heude, 1874)
iris, Villosa iris (Lea, 1829)
irisans, Anodon irisans Anthony, 1865 - syn of: Pyganodon fragilis (Lamarck, 1819)
irrasum, Pleurobema irrasum Lea, 1861 - syn of: Pleurobema rubellum Conrad, 1834
irrasus, Unio irrasus Lea, 1861 - syn of: Pleurobema georgianum Lea, 1841
irregularis, Anodon irregularis Heude, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
irrorata, Cyprogenia irrorata Lea, 1828 - syn of: Cyprogenia stegaria (Rafinesque, 1820)
irrorata pusilla, Cyprogenia irrorata pusilla Simpson, 1900 - syn of: Cyprogenia stegaria (Rafinesque, 1820)
irroratus, Unio irroratus Lea, 1828 - syn of: Cyprogenia stegaria (Rafinesque, 1820)
irwinensis, Unio irwinensis Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
isseli, Anodonta isseli Bourguignat, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
iturupica, Kunashiria iturupica Bogatov & al., 1999 - syn of: Sinanodonta woodiana (Lea, 1834)
iwakawai, Anodonta iwakawai Suzuki, 1939 - syn of: Anemina arcaeformis (Heude, 1877)
jacksoniana, Obovaria jacksoniana Frierson, 1912 - syn of: Obovaria arkansasensis (Lea, 1862)
jaculus, Unio jaculus Rochebrune, 1881 - syn of: Ensidens sagittarius (Lea, 1856)
japanensis, Pronodularia japanensis (Lea, 1859)
japanensis, Unio japanensis Kobelt, 1879 - syn of: Inversiunio jokohamensis (Ihering, 1893)
japonensis, Unio japonensis Lea, 1859 - syn of: Pronodularia japanensis (Lea, 1859)
japonica, Anodonta japonica Clessin, 1874 - syn of: Sinanodonta woodiana (Lea, 1834)
japonica boreosakhalinensis, Kunashiria japonica boreosakhalinensis Labay & Shulga, 1999 - syn of: Sinanodonta woodiana (Lea, 1834)
jaspidea, Unio jaspidea Hupé, 1857 - syn of: Monocondylaea paraguayana D'Orbigny, 1835
jauberti, Unio jauberti Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
jayensis, Elliptio jayensis Lea, 1838
jayensis buckleyi, Elliptio jayensis buckleyi Lea, 1843
jeffreysianus, Unio jeffreysianus Lea, 1871 - syn of: Velesunio ambiguus (Philippi, 1847)
jejunus, Unio jejunus Lea, 1838 - syn of: Unio abbevillensis Lea, 1857
jenkinsianus, Lamellidens jenkinsianus (Benson, 1862)
jesseni, Anodonta jesseni Schlesch, 1926 - syn of: Anodonta cygnea (Linnaeus, 1758)
jewettiana, Anodonta jewettiana Lea, 1868 - syn of: Anodontites trapesialis (Lamarck, 1818)
jianghanensis, Acuticosta jianghanensis He & Zhuang, 2013
jickeli, Nodularia jickeli Simpson, 1900 - syn of: Nitia teretiuscula (Philippi, 1847)
joannisi, Unio joannisi Bourguignat, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
joannisi, Anodonta joannisi Germain, 1904 - syn of: Anodonta cygnea (Linnaeus, 1758)
jobae, Anodonta jobae Dupuy, 1849 - syn of: Pseudanodonta elongata (Holandre, 1836)
johannis, Pleurobema johannis Lea, 1859 - syn of: Pleurobema perovatum Conrad, 1834
johnseni, Anodonta johnseni Russell, 1935 † (FOSSIL)
johnstoni, Prisodontopsis johnstoni Smith, 1908 - syn of: Prisodontopsis aviculaeformis Woodward, 1991
jokohamensis, Inversiunio jokohamensis (Ihering, 1893)
jonesi, Ptychobranchus jonesi (Van Der Schalie, 1934)
jonicus, Unio crassus jonicus Drouët
jordanicus, Unio jordanicus Bourguignat, 1856 - syn of: Unio terminalis Bourguignat, 1852
joreti, Anodon joreti Heude, 1878 - syn of: Sinanodonta woodiana (Lea, 1834)
josei, Anodonta josei Da Silva e Castro, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
josseti, Coelatura horei josseti Bourguignat
josseti, Unio josseti Bourguignat, 1886 - syn of: Coelatura horei josseti Bourguignat, 1886
jouberti, Coelatura horei jouberti Bourguignat
jouberti, Burtonia jouberti Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
jouberti, Unio jouberti Bourguignat, 1886 - syn of: Coelatura horei jouberti Bourguignat, 1886
jourdheuili, Anodonta jourdheuili Bourguignat, 1881 - syn of: Anodonta anatina (Linnaeus, 1758)
jourdyi, Oxynaia jourdyi (Morlet, 1886)
jourdyi corrugata, Oxynaia jourdyi corrugata (Dautzenberg & Fischer, 1905)
jourdyi ponderosa, Oxynaia jourdyi ponderosa (Dautzenberg & Fischer, 1905)
journeopsis, Anodonta journeopsis Schröder, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
jousseaumi, Unio jousseaumi Bourguignat, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
jowikolensis, Unio jowikolensis Cox, 1955 † (FOSSIL)
jowikolensis, Unio jowikolensis Newton, 1909 † - syn of: Afrohyrioides jowikolensis (Newton, 1909) † (FOSSIL)
judithae, Elliptio judithae Clarke, 1986
jukesi, Anodonta jukesi Forbes, 1853 † - syn of: Archanodon jukesi (Forbes, 1853) † (FOSSIL)
juliani, Coelatura aegyptiaca juliani Rang
juliani, Unio juliani Rang, 1863 - syn of: Coelatura aegyptiaca juliani Rang, 1863
jurianus, Unio jurianus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
kamchatica, Beringiana kamchatica Bogatov & Starobogatov, 2001 - syn of: Anodonta beringiana (Middendorff, 1851)
karooensis, Unio karooensis Cox, 1932 † - syn of: Tihkia karooensis (Cox, 1932) † (FOSSIL)
katzeri, Unio katzeri Brusina, 1904 † (FOSSIL)
katzeri bicostatus, Unio katzeri bicostatus Žagar-Sakaè, 1986 † - syn of: Unio katzeri Brusina, 1904 † (FOSSIL)
katzeri tricostatus, Unio katzeri tricostatus Žagar-Sakaè, 1986 † - syn of: Unio katzeri Brusina, 1904 † (FOSSIL)
keineriana, Amphinaias keineriana (Lea, 1852)
kennerlyi, Anodonta kennerlyi Lea, 1860
kennicottii, Anodonta kennicottii Lea, 1861 - syn of: Anodonta grandis Say, 1829
keraudreni, Unio keraudreni Eydoux, 1838 - syn of: Radiatula caerulea (Lea, 1831)
khadakvaslaensis, Radiatula khadakvaslaensis Ray, 1966
khwaenoiensis, Solenaia khwaenoiensis Panha & Deein, 2004
kijaensis, Amuranodonta kijaensis Moskvicheva, 1973 - syn of: Anemina arcaeformis (Heude, 1877)
kingi, Unio kingi Wright, 1900 - syn of: Medionidus penicillatus (Lea, 1857)
kinkelini, Potomida kinkelini Haas, 1910 - syn of: Potomida littoralis (Cuvier, 1798)
kipopoensis, Coelatura kipopoensis Mandahl-Barth, 1968
kirchbergensis, Unio kirchbergensis Krauss, 1852 † (FOSSIL)
kirkii, Unio kirkii Lea, 1864 - syn of: Nyassunio nyassaensis (Lea, 1864)
kirklandianus, Unio kirklandianus Hanley, 1843 - syn of: Fusconaia subrotunda (Lea, 1831)
kirklandianus, Unio kirklandianus Wright, 1897 - syn of: Hamiota subangulata (Lea, 1840)
kirtlandianus, Unio kirtlandianus Lea, 1834 - syn of: Fusconaia subrotunda (Lea, 1831)
kisonis, Unio kisonis Kobelt & Rolle, 1895 - syn of: Unio terminalis Bourguignat, 1852
klecaki, Anodonta klecaki Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
kleciaki, Anodonta kleciaki Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
kleiniana, Quincuncina kleiniana Lea, 1832 - syn of: Amphinaias infucata (Conrad, 1834)
kletti, Pseudanodonta kletti Rossmässler, 1835 - syn of: Pseudanodonta complanata (Rossmässler, 1835)
kobelti, Anodonta kobelti Ihering, 1893 - syn of: Sinanodonta woodiana (Lea, 1834)
kobelti, Unio kobelti Kobelt & Rolle, 1895 - syn of: Unio terminalis Bourguignat, 1852
kobelti, Unio kobelti Neumayr, 1899 - syn of: Nodularia douglasiae (Gray, 1834)
kobeltiana, Anodonta kobeltiana Adami, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
kobeltianus, Unio kobeltianus Haas, 1913 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
koehleri, Coelatura aegyptiaca koehleri Germain
koehleri, Unio koehleri Germain, 1909 - syn of: Coelatura aegyptiaca koehleri Germain, 1909
kokandicum, Anodonta kokandicum Starobogatov & Izzatullaev, 1984 - syn of: Anodonta anatina (Linnaeus, 1758)
komarowi, Potomida komarowi Böttger, 1880 - syn of: Potomida littoralis (Cuvier, 1798)
konkanica, Anodonta konkanica Bourguignat, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
koreana, Buldowskia koreana Bogatov & Starobogatov, 1996 - syn of: Anemina arcaeformis (Heude, 1877)
koseretzi, Unio koseretzi Simpson, 1900 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
koseritzi, Unio koseritzi Clessin, 1888 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
kouangensis, Lamprotula kouangensis (Simpson, 1900)
koutaisianum, Unio koutaisianum Kobelt, 1886 - syn of: Unio crassus Philipsson, 1788
kraussii, Unio kraussii Lea, 1853 - syn of: Castaliella sulcata (Krauss, 1849)
kunenensis, Coelatura kunenensis (Mousson, 1887)
kungurensis irenjensis, Unio kungurensis irenjensis Kobelt, 1912 - syn of: Unio crassus Philipsson, 1788
kusteri, Anodonta kusteri Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
kuxensis, Psoronaias kuxensis Frierson, 1917
kyogae, Coelatura hauttecoeuri kyogae Mandahl-Barth
labacensis, Unio labacensis Rossmässler, 1835 - syn of: Unio crassus Philipsson, 1788
lacaziana, Unio lacaziana Dupuy, 1843 † (FOSSIL)
lachrymosa, Quadrula lachrymosa Swainson, 1840 - syn of: Quadrula quadrula Rafinesque, 1820
lacoini, Coelatura aegyptiaca lacoini Germain
lacoini, Unio lacoini Germain, 1906 - syn of: Coelatura aegyptiaca lacoini Germain, 1906
lacoini chudeaui, Unio lacoini chudeaui Germain, 1906 - syn of: Coelatura aegyptiaca chudeaui Germain, 1906
lacrymiformis, Unio lacrymiformis Locard, 1893 - syn of: Unio tumidus Retzius, 1788
lacrymosus, Unio lacrymosus Lea, 1828 - syn of: Quadrula quadrula Rafinesque, 1820
lacteolus, Unio lacteolus Lea, 1834 - syn of: Diplodon delodontus (Lamarck, 1819)
lacuna, Anodonta lacuna Locard, 1884 - syn of: Anodonta cygnea (Linnaeus, 1758)
lacustris, Pyganodon lacustris (Lea, 1852)
lacustris, Buldowskia lacustris Labay & Shulga, 1999 - syn of: Anemina arcaeformis (Heude, 1877)
lacuum, Anodonta lacuum Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
laevigata, Anodonta laevigata Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
laevirostris, Unio laevirostris Benson, 1862 - syn of: Parreysia corrugata (Müller, 1774)
laevis, Ptychorhynchus laevis Haas, 1910 - syn of: Margaritifera laevis (Haas, 1910)
laevis, Acuticosta chinensis laevis Heude
laevis, Lanceolaria laevis Von Martens, 1902 - syn of: Lanceolaria grayana (Lea, 1834)
laevissima, Symphynota laevissima Lea, 1829 - syn of: Potamilus ohiensis Rafinesque, 1820
lagnysiacus, Unio lagnysiacus Locard, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
lagotis solidlssima, Unio lagotis solidlssima Kobelt, 1872 - syn of: Radix solidissima (Kobelt, 1872)
lagotis subdisjuncta, Unio lagotis subdisjuncta Nevill, 1878 - syn of: Lymnaea subdisjuncta (Nevill, 1878)
lamarckianus, Unio lamarckianus Lea, 1852 - syn of: Cyprogenia aberti (Conrad, 1850)
lamboltei, Unio lamboltei Malzine, 1867 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
lamellatus, Lamellidens lamellatus (Lea, 1838)
lamellatus, Unio lamellatus Hanley & Theobald, 1876 - syn of: Pseudodon cambodjensis (Petit De La Saussaye, 1865)
laminata, Anodonta laminata Rochebrune, 1881 - syn of: Pilsbryoconcha exilis (Lea, 1839)
lampreyanus, Schistodesmus lampreyanus (Baird & Adams, 1867)
lananensis, Fusconaia lananensis Frierson, 1901
lancelevei, Unio lancelevei Locard, 1893 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
lanceolata, Arconaia lanceolata (Lea, 1856)
lanceolata, Anodonta lanceolata Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
lanceolata, Elliptio lanceolata Lea, 1827
languilati, Lepidodesma languilati (Heude, 1874)
laoensis, Unio laoensis Sowerby, 1866 - syn of: Margaritifera laosensis (Lea, 1863)
laosensis, Anodonta laosensis Fischer, 1891 - syn of: Anodonta nuttalliana (Lea, 1838)
laosensis, Unio laosensis Lea, 1863 - syn of: Margaritifera laosensis (Lea, 1863)
lapidosus, Unio lapidosus Kobelt, 1893 - syn of: Disconaias panacoensis (Busch, 1843)
lapparenti, Rostrunio lapparenti (Mongin, 1963) † (FOSSIL)
largillierti, Potamilus largillierti (Philippi, 1847)
lata, Hemistena lata Rafinesque, 1820
laticeps, Unio laticeps Von Martens, 1900 - syn of: Contradens semmelinki (Von Martens, 1891)
latimarginata, Anodonta latimarginata Von Martens, 1868 - syn of: Anodontites ferrarisii (D'Orbigny, 1835)
latimarginata inflata, Anodonta latimarginata inflata Von Martens, 1868 - syn of: Anodontites ferrarisii (D'Orbigny, 1835)
latiovalis, Unionelloides latiovalis (Cai & Liu, 1978) † (FOSSIL)
latirostris, Anodonta latirostris Drouët, 1894 - syn of: Anodonta cygnea (Linnaeus, 1758)
latirostris, Unio pictorum latirostris Küster
latissima, Anodonta latissima Gallenstein, 1852 - syn of: Anodonta cygnea (Linnaeus, 1758)
latissima, Eurynia latissima Rafinesque, 1820 - syn of: Ligumia recta (Lamarck, 1819)
latomarginata, Anodonta latomarginata Lea, 1834 - syn of: Anodontites ferrarisii (D'Orbigny, 1835)
latus, Unio latus Lea, 1859 - syn of: Elliptio roanokensis Lea, 1838
lauta, Anodonta lauta Von Martens, 1877 - syn of: Sinanodonta woodiana (Lea, 1834)
lauta rostrata, Anodonta lauta rostrata Kobelt, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
lauteborni, Unio lauteborni Haas, 1909 - syn of: Unio tumidus Retzius, 1788
lavigeriana, Coelatura horei lavigeriana Bourguignat
lavigeriana, Burtonia lavigeriana Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
lavigerianus, Unio lavigerianus Bourguignat, 1886 - syn of: Coelatura horei lavigeriana Bourguignat, 1886
lawleyianus, Unio lawleyianus Gentiluomo, 1868 - syn of: Unio mancus Lamarck, 1819
layardii, Unio layardii Lea, 1859 - syn of: Lamellidens lamellatus (Lea, 1838)
lazarus, Unio lazarus Lea, 1852 - syn of: Elliptio arctata Conrad, 1834
leai, Lamprotula leai (Griffith & Pidgeon, 1834)
leai gottschei, Lamprotula leai gottschei Von Martens, 1894 - syn of: Lamprotula gottschei (Von Martens, 1894)
lebedevi, Unio lebedevi Zatrawkin & Starobogatov, 1984 - syn of: Nodularia douglasiae (Gray, 1834)
lechaptoisi, Unio lechaptoisi Ancey, 1894 - syn of: Coelatura mossambicensis (Von Martens, 1860)
lechaptoisi minor, Unio lechaptoisi minor Von Martens, 1897 - syn of: Coelatura mossambicensis (Von Martens, 1860)
lecontianus, Unio lecontianus Lea, 1838 - syn of: Elliptio congaraea (Lea, 1831)
lederi, Anodonta lederi Bourguignat, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
ledoulxianus, Unio ledoulxianus Charmes, 1885 - syn of: Coelatura ratidota (Charmes, 1885)
lefevrei, Truncilla lefevrei Utterback, 1916 - syn of: Dysnomia turgidula Lea, 1858
legrandi, Unio legrandi Petterd, 1889 - syn of: Velesunio moretonicus (Reeve, 1865)
legumen, Anodonta legumen Von Martens, 1888 - syn of: Mycetopoda legumen (Von Martens, 1888)
leioma, Unio leioma Benson, 1862 - syn of: Radiatula caerulea (Lea, 1831)
leleci, Lamprotula leleci (Heude, 1875)
lemeslei, Pilsbryoconcha lemeslei (Morelet, 1875)
lemotheuxi, Unio lemotheuxi Servain, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
lemovicincae, Unio lemovicincae Férussac, 1807 - syn of: Unio crassus Philipsson, 1788
lempensis, Nephronaias lempensis Marshall, 1926
lenae, Anodonta lenae Zhadin, 1938 - syn of: Anodonta cygnea (Linnaeus, 1758)
lenior, Epioblasma lenior (Lea, 1842)
lenkoranensis, Anodonta lenkoranensis Drouët, 1881 - syn of: Anodonta cyrea Drouët, 1881
lens, Obovaria retusa lens Lea
lenticularis, Anodonta lenticularis Lea, 1868 - syn of: Anodontites inaequivalva (Lea, 1868)
lenticularis, Unio lenticularis Lea, 1872 - syn of: Fusconaia barnesiana (Lea, 1829)
leonensis, Anodonta leonensis Lea, 1862 - syn of: Anodonta grandis Say, 1829
leonensis, Unio leonensis Simpson, 1892 - syn of: Elliptio jayensis Lea, 1838
leopoldvillensis, Coelatura leopoldvillensis (Putzeys, 1898)
leopoldvillensis, Burtonia leopoldvillensis Simpson, 1900 - syn of: Mutela legumen (Rochebrune, 1886)
lepida, Anodonta lepida Drouët, 1892 - syn of: Anodonta cygnea (Linnaeus, 1758)
lepidioir, Unio lepidioir Bonetto, 1964 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
lepidior, Unio lepidior Lea, 1870 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
lepidus, Unio lepidus Lea, 1860 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
leprosa, Anodonta leprosa Locard, 1899 - syn of: Anodonta cygnea (Linnaeus, 1758)
leprosa benacensis, Anodonta leprosa benacensis Gredler, 1859 - syn of: Anodonta cygnea (Linnaeus, 1758)
leprosus, Unio leprosus Miles, 1861 - syn of: Ligumia recta (Lamarck, 1819)
leptodon, Leptodea leptodon (Rafinesque, 1820)
leptodon olivacea, Leptodea leptodon olivacea Rafinesque, 1820 - syn of: Leptodea leptodon (Rafinesque, 1820)
leptodon semiradiata, Leptodea leptodon semiradiata Rafinesque, 1820 - syn of: Leptodea leptodon (Rafinesque, 1820)
lessoni, Unio lessoni Küster, 1855 - syn of: Hyridella australis (Lamarck, 1819)
lesueuriana, Fusconaia subrotunda lesueuriana Lea
lesueurianus, Unio lesueurianus Lea, 1840 - syn of: Fusconaia subrotunda (Lea, 1831)
lesumicus, Unio lesumicus Bourguignat, 1888 - syn of: Unio pictorum (Linnaeus, 1758)
letourneauxi, Anodonta letourneauxi Bourguignat, 1864 - syn of: Anodonta cygnea (Linnaeus, 1758)
letourneuxi, Pseudanodonta letourneuxi Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
letourneuxi, Anodonta letourneuxi Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
leukoranea, Anodonta leukoranea Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
levissimus, Unio levissimus De Gregorio, 1914 - syn of: Potamilus ohiensis Rafinesque, 1820
levoiturieri, Unio levoiturieri Locard, 1893 - syn of: Unio tumidus Retzius, 1788
lewisii, Epioblasma lewisii (Walker, 1910)
lewisii, Anodonta lewisii Lea, 1857 - syn of: Anodonta grandis Say, 1829
lewisii, Unio lewisii Lea, 1861 - syn of: Pleurobema fibuloides (Lea, 1859)
lhotellerii, Anodonta lhotellerii Drouët, 1892 - syn of: Anodonta cygnea (Linnaeus, 1758)
liebmanni, Sphenonaias liebmanni (Philippi, 1847)
liebmanni cuatolopamensis, Sphenonaias liebmanni cuatolopamensis Baker, 1922 - syn of: Sphenonaias liebmanni (Philippi, 1847)
liederi, Unio liederi Von Martens, 1897 - syn of: Coelatura mossambicensis (Von Martens, 1860)
liedtkei, Quadrula liedtkei Rolle, 1904 - syn of: Lamprotula nodulosa (Wood, 1815)
liedtkei orbicularis, Quadrula liedtkei orbicularis Rolle, 1904 - syn of: Lamprotula nodulosa (Wood, 1815)
lienosa, Villosa lienosa (Conrad, 1834)
lienosus constrictus, Unio lienosus constrictus Conrad, 1838 - syn of: Villosa constricta (Conrad, 1838)
ligamentina, Actinonaias ligamentina (Lamarck, 1819)
ligamentina carinata, Actinonaias ligamentina carinata (Barnes, 1823)
ligamentina gibba, Actinonaias ligamentina gibba Simpson, 1900 - syn of: Actinonaias ligamentina (Lamarck, 1819)
ligatus, Unio ligatus Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
ligerica, Pseudanodonta ligerica Bourguignat, 1880 - syn of: Pseudanodonta elongata (Holandre, 1836)
likharevi, Anodonta likharevi Moskvicheva, 1973 - syn of: Sinanodonta woodiana (Lea, 1834)
lima, Radiatula lima Simpson, 1900
limbata, Anodonta limbata Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
limensis, Unio limensis Küster, 1856 - syn of: Diplodon chilensis (Gray, 1852)
limicola, Unio limicola Moerch, 1864 - syn of: Unio tumidus Retzius, 1788
limnoica, Anodontes limnoica D'Orbigny, 1835 - syn of: Anodontites trigona (Spix & Wagner, 1827)
limosa, Anodon limosa Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
limosellus, Unio limosellus Drouët, 1893 - syn of: Unio abrantesianus Locard, 1899
limosus, Unio limosus Nilsson, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
limosus behningi, Unio limosus behningi Starobogatov & Pirogov, 1970 - syn of: Unio pictorum (Linnaeus, 1758)
limosus graniger, Unio limosus graniger Ziegler, 1840 - syn of: Unio pictorum (Linnaeus, 1758)
linae, Lamprotula linae He & Zhuang, 2013
lineata, Anodon lineata Heude, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
lineatus, Unio lineatus Lea, 1840 - syn of: Lampsilis binominata Simpson, 1900
lineolata, Ellipsaria lineolata Rafinesque, 1820
linguaeformis, Unio linguaeformis Lea, 1860 - syn of: Villosa lienosa (Conrad, 1834)
lingulata, Anodonta lingulata Hupé, 1857 - syn of: Anodontites trigona (Spix & Wagner, 1827)
lingulatus, Rectidens lingulatus (Drouët & Chaper, 1892)
linnaeana, Anodonta linnaeana Lea, 1852 - syn of: Anodonta grandis Say, 1829
lithophagus, Unio lithophagus Philippi, 1847 - syn of: Nitia teretiuscula (Philippi, 1847)
litoralis, Unio litoralis Rossmässler, 1835 - syn of: Unio crassus Philipsson, 1788
littoralis, Potomida littoralis (Cuvier, 1798)
littoralis, Unio littoralis Lamarck, 1801
littoralis catalonicus, Potomida littoralis catalonicus (Haas, 1920)
littoralis subreniformis, Potomida littoralis subreniformis (Bourguignat, 1867)
littoralis taginus, Potomida littoralis taginus Kobelt, 1903 - syn of: Potomida littoralis (Cuvier, 1798)
littoralis umbonata, Potomida littoralis umbonata Rossmässler, 1844
litturata, Anodonta litturata Hupé, 1857 - syn of: Anodontites obtusa (Spix & Wagner, 1827)
liuovatus, Lamellidens liuovatus (Zhuang & He, 2013)
livida, Cyrtonaias livida (Simpson, 1900)
livida, Anodon livida Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
lividus, Toxolasma lividus Rafinesque, 1831
lividus glans, Toxolasma lividus glans Lea, 1831
livingstonensis, Burtonia livingstonensis Simpson, 1900 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
livingstoniana, Burtonia livingstoniana Bourguignat, 1883 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
livronica, Anodonta livronica Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
lobensis, Coelatura lobensis (Frierson, 1913)
locardi, Anodonta locardi Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
locardiana, Grandidieria burtoni locardiana Bourguignat
locellus, Unio locellus Lea, 1866 - syn of: Rhipidodonta variabilis (Maton, 1811)
lomakini, Buldowskia lomakini Zatrawkin & Bogatov, 1987 - syn of: Anemina arcaeformis (Heude, 1877)
lomakini, Amuranodonta lomakini Zatrawkin & Bogatov, 1987 - syn of: Anemina arcaeformis (Heude, 1877)
longata, Scabies longata Liu, Duan & Lai, 1991
longirostris, Anodonta longirostris Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
longirostris, Unio longirostris Rossmässler, 1836 - syn of: Unio pictorum rostratus Lamarck, 1819
loomisi, Pseudodon loomisi Simpson, 1900 - syn of: Pseudodon omiensis Heimburg, 1884
lorteti, Unio lorteti Lortet, 1880 - syn of: Unio terminalis Bourguignat, 1852
luapulaensis, Coelatura luapulaensis (Preston, 1913)
lucasi, Anodonta lucasi Deshayes, 1848 - syn of: Anodonta cygnea (Linnaeus, 1758)
lucasii, Anodonta lucasii Morelet, 1852 - syn of: Anodonta cygnea (Linnaeus, 1758)
lucida, Anodon lucida Heude, 1877 - syn of: Sinanodonta woodiana (Lea, 1834)
lugens, Contradens contradens lugens Drouët & Chaper
lugens, Unio lugens Drouët & Chaper, 1892 - syn of: Contradens contradens lugens (Drouët & Chaper, 1892)
lugubris, Unio lugubris Lea, 1834 - syn of: Elliptio cylindracea Frierson, 1927
lugubris, Anodonta lugubris Say, 1829 - syn of: Anodonta grandis Say, 1829
lunifer, Unio lunifer Lea, 1870 - syn of: Unio terminalis Bourguignat, 1852
lunulatus, Unio lunulatus Pratt, 1976 - syn of: Quadrula quadrula Rafinesque, 1820
lunulifer, Unio lunulifer Bourguignat, 1856 - syn of: Unio terminalis Bourguignat, 1852
lurulenta, Anodonta lurulenta Morelet, 1849
lusitanus, Unio lusitanus Drouët, 1879 - syn of: Unio abrantesianus Locard, 1899
luteola, Lampsilis radiata luteola Lamarck
luteola, Anodonta luteola Lea, 1858 - syn of: Anodontites tortilis (Lea, 1852)
lutetiana, Anodonta lutetiana Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
luteus, Unio luteus Lea, 1856 - syn of: Parreysia corrugata (Müller, 1774)
lutulentus, Unio lutulentus Gould, 1850 - syn of: Echyridella menziesii (Gray, 1843)
lutulentus, Unio lutulentus Reeve, 1865 - syn of: Cucumerunio websteri (Simpson, 1902)
lutulentus, Unio lutulentus Sowerby, 1868 - syn of: Echyridella menziesii (Gray, 1843)
luxurians, Unio luxurians Küster, 1854 - syn of: Unio crassus Philipsson, 1788
lyonii, Unio lyonii Lea, 1865 - syn of: Fusconaia barnesiana (Lea, 1829)
maacki, Lanceolaria maacki Moskvicheva, 1973 - syn of: Lanceolaria cylindrica (Simpson, 1900)
mabilli, Pseudodon mabilli Rochebrune, 1881 - syn of: Pseudodon mouhoti Lea, 1863
macella, Anodonta macella Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
macer, Unio macer Lea, 1857 - syn of: Elliptio roanokensis Lea, 1838
machadoia, Anodonta machadoia Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
machadoiana, Anodonta machadoiana Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
macilentus, Unio macilentus Benson, 1862 - syn of: Radiatula occata (Lea, 1860)
macmichaeli, Elliptio macmichaeli Clench & Turner, 1956
macnielii, Nephronaias macnielii (Lea, 1869)
maconensis, Unio maconensis Lea, 1857 - syn of: Elliptio pullata (Lea, 1856)
macrodon, Truncilla macrodon Lea, 1859
macropisthus, Unio macropisthus Bourguignat, 1889 - syn of: Unio pictorum (Linnaeus, 1758)
macropygus, Unio macropygus Da Silva e Castro, 1885 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
macrorhynchus, Unio macrorhynchus Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
macrostena, Anodonta macrostena Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
maganica, Anodonta maganica Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
magnifica, Burtonia magnifica Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
magnifica, Anodonta magnifica Clessin, 1873 - syn of: Cristaria plicata (Leach, 1815)
magnifica, Symphynota magnifica Lea, 1834 - syn of: Sinanodonta woodiana (Lea, 1834)
magnifica, Symphynota magnifica Mabille & Le Mesle, 1866 - syn of: Cristaria plicata (Leach, 1815)
magnifica, Anodonta magnifica Schrenck, 1867 - syn of: Sinanodonta woodiana (Lea, 1834)
mahometana, Anodonta mahometana Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
maihensis, Middendorffinaia maihensis Moskvicheva, 1973 - syn of: Inversidens pantoensis (Neumayr, 1899)
mainwaringi, Lamellidens mainwaringi Preston, 1912
malgachensis, Unio malgachensis Germain, 1911
maltzani, Unio maltzani Küster, 1854 - syn of: Unio pictorum (Linnaeus, 1758)
mamillatus, Unio mamillatus Hislop, 1859 † (FOSSIL)
manchurica, Ellipsanodon manchurica Bogatov & Starobogatov, 1996 - syn of: Sinanodonta woodiana (Lea, 1834)
manculus, Unio manculus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
mancus, Unio mancus Lamarck, 1819
mancus hamyanus, Unio mancus hamyanus Bourguignat, 1885
mancus ibericus, Unio mancus ibericus Altaba, 1992
mancus ilqui, Unio mancus ilqui Soleillet, 1885
mancus penchinatianus, Unio mancus penchinatianus Bourguignat, 1865
mandarinus, Unio mandarinus Morelet, 1863 - syn of: Scabies crispata (Gould, 1843)
mandelayensis, Parreysia mandelayensis Theobald, 1873
mandinguorum, Coelatura aegyptiaca mandinguorum Rochebrune
mandinguorum, Unio mandinguorum Rochebrune, 1882 - syn of: Coelatura aegyptiaca mandinguorum Rochebrune, 1882
manica, Anodonta manica Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
mansuyi, Lamprotula mansuyi (Dautzenberg & Fischer, 1908)
manueli, Pseudodon manueli Konopleva, Kondakov & Vikhrev, 2017
marcellinus, Unio marcellinus Berthier, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
mardinensis, Leguminaia mardinensis Lea, 1864 - syn of: Leguminaia wheatleyi (Lea, 1862)
margaritanopsis, Unio margaritanopsis Locard, 1889 - syn of: Pseudunio auricularius (Spengler, 1793)
margaritifera, Unio margaritifera Draparnaud, 1801 - syn of: Pseudunio auricularius (Spengler, 1793)
marginalis, Lamellidens marginalis (Lamarck, 1819)
marginalis obesa, Unio marginalis obesa Hanley & Theobald, 1876 - syn of: Lamellidens jenkinsianus (Benson, 1862)
marginalis sawaddyensis, Lamellidens marginalis sawaddyensis Preston, 1912 - syn of: Lamellidens generosus (Gould, 1847)
marginalis sublamellatus, Lamellidens marginalis sublamellatus Preston, 1912 - syn of: Lamellidens scutum (Sowerby, 1868)
marginalis zonata, Unio marginalis zonata Hanley & Theobald, 1876 - syn of: Lamellidens scutum (Sowerby, 1868)
marginata, Alasmodon marginata De Kay, 1843 - syn of: Alasmidonta varicosa (Lamarck, 1819)
marginata, Anodonta marginata Say, 1817 - syn of: Anodonta cataracta Say, 1817
marginata, Alasmidonta marginata Say, 1818
mariae, Unio mariae Pacome, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
maritzana, Anodonta maritzana Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
marshalli, Pleurobema marshalli Frierson, 1927
marshalli, Micronaias marshalli Morrison, 1943 - syn of: Micronaias granadensis (Lea, 1868)
marshii, Unio marshii Wright, 1888 - syn of: Elliptio jayensis Lea, 1838
marsupiobesa, Elliptio marsupiobesa Fuller, 1972
marteli, Unio marteli Pallary, 1916 - syn of: Potomida littoralis (Cuvier, 1798)
martelli, Unio martelli Pallary, 1916 - syn of: Potomida littoralis (Cuvier, 1798)
martensi, Psoronaias martensi Frierson, 1927
martensi, Unio martensi Ihering, 1893 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
martensi, Pseudopotomida martensi Moskvicheva & Starobogatov, 1973 - syn of: Inversidens pantoensis (Neumayr, 1899)
maryattiana, Anodonta maryattiana Lea, 1840 - syn of: Anodonta grandis Say, 1829
masoni, Fusconaia masoni (Conrad, 1834)
materniacus, Unio materniacus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
matoniana, Unio matoniana D'Orbigny, 1835 - syn of: Rhipidodonta variabilis (Maton, 1811)
matronicus, Unio matronicus Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
mauduyti, Potomida mauduyti Germain, 1897 - syn of: Potomida littoralis (Cuvier, 1798)
mauretanicus, Unio mauretanicus Van Damme, 1984 - syn of: Potomida littoralis (Cuvier, 1798)
mauritanicus, Unio mauritanicus Bourguignat, 1868 - syn of: Potomida littoralis (Cuvier, 1798)
maxima, Anodonta maxima Drouët, 1889 - syn of: Anodonta cygnea (Linnaeus, 1758)
maxima, Unio maxima Moerch, 1864 - syn of: Unio tumidus Retzius, 1788
maywebbae, Elliptio maywebbae Wright, 1934 - syn of: Elliptio jayensis Lea, 1838
mccordi, Alasmidens mccordi (Athearn, 1964)
mcglameriae, Medionidus mcglameriae Van Der Schalie, 1939 - syn of: Leptodea fragilis Rafinesque, 1820
mcmichaeli, Elliptio mcmichaeli Clench & Turner, 1956 - syn of: Elliptio macmichaeli Clench & Turner, 1956
mcnielii, Anodon mcnielii Anthony, 1866 - syn of: Anodonta grandis Say, 1829
mearnsi, Toxolasma mearnsi Simpson, 1900
mecklenbergensis, Unio mecklenbergensis Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
mecyna, Pseudanodonta mecyna Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
medellina, Actinonaias medellina (Lea, 1838)
media, Anodonta media Bourguignat, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
mediastinus, Unio mediastinus Heude, 1883 - syn of: Ptychorhynchus pfisteri (Heude, 1874)
mediocris, Unio mediocris Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
medius, Unio medius Lea, 1861 - syn of: Pleurobema georgianum Lea, 1841
melanochlorea, Anodon melanochlorea Heude, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
melantatus, Unio melantatus Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
melas, Unio melas Coutagne, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
melitopolitana, Anodonta melitopolitana Milaschewitsch, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
mellea, Nephronaias mellea (Lea, 1859)
membranacea, Anodonta membranacea D'Orbigny, 1847 - syn of: Anodontites patagonica Lamarck, 1819
membranacea, Unio membranacea Hanley, 1843 - syn of: Rhipidodonta variabilis (Maton, 1811)
menardi, Coelatura horei menardi Bourguignat
menardi, Unio menardi Bourguignat, 1886 - syn of: Coelatura horei menardi Bourguignat, 1886
meneliki, Unio meneliki Soleillet, 1885 - syn of: Unio mancus Lamarck, 1819
mengoiana, Anodonta mengoiana Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
mengrelica, Crassunio mengrelica Drouët, 1881 - syn of: Unio crassus Philipsson, 1788
menkei, Unio menkei Koch & Dunker, 1847 † (FOSSIL)
menzieni, Unio menzieni Lea, 1870 - syn of: Echyridella menziesii (Gray, 1843)
menziesianus, Unio menziesianus Reeve, 1865 - syn of: Echyridella menziesii (Gray, 1843)
menziesii, Unio menziesii Dieffenbach, 1843 - syn of: Echyridella menziesii (Gray, 1843)
menziezianus, Unio menziezianus Simpson, 1900 - syn of: Echyridella menziesii (Gray, 1843)
mercerii, Unio mercerii Lea, 1862 - syn of: Elliptio pullata (Lea, 1856)
meredithi, Pleurobema meredithi Lea, 1858 - syn of: Fusconaia barnesiana (Lea, 1829)
meredithii, Unio meredithii Lea, 1858 - syn of: Fusconaia barnesiana (Lea, 1829)
merodabensis, Unio merodabensis Küster, 1861 - syn of: Parreysia corrugata (Müller, 1774)
merus, Unio merus Lea, 1852 - syn of: Fusconaia masoni (Conrad, 1834)
messageri, Protunio messageri (Bavay & Dautzenberg, 1901)
metallica, Popenaias metallica (Say, 1831)
metallica ganina, Lampsilis metallica ganina Pilsbry, 1910 - syn of: Popenaias metallica (Say, 1831)
metanevra, Theliderma metanevra (Rafinesque, 1820)
metastriata, Epioblasma metastriata Conrad, 1838
metnecktayi, Potamilus metnecktayi Johnson, 1998
mexicana, Sphenonaias mexicana (Philippi, 1847)
mexicanus, Unio mexicanus Sowerby, 1867 - syn of: Disconaias panacoensis (Busch, 1843)
micans, Anodon micans Anthony, 1865 - syn of: Anodonta grandis Say, 1829
micheloti, Oxynaia micheloti (Morlet, 1886)
micheloti hedeius, Oxynaia micheloti hedeius (Mabille, 1889)
michonii, Unio michonii Bourguignat, 1852 - syn of: Leguminaia saulcyi (Bourguignat, 1852)
microdon, Sphenonaias microdon (Von Martens, 1887)
micropteroides, Physunio micropteroides Annandale, 1918
micropterus, Physunio micropterus (Morelet, 1866)
microsticta, Lamprotula microsticta (Heude, 1877)
middendorffi, Pseudanodonta middendorffi (Siemaschko, 1848)
middendorffi, Unio middendorffi Westerlund, 1890 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
milaschevichi, Anodonta milaschevichi Bogatov, Starobogatov & Prozorova, 2005 - syn of: Anodonta anatina (Linnaeus, 1758)
milaschevitchi, Anodonta milaschevitchi Bogatov, Starobogatov & Prozorova, 2005 - syn of: Anodonta anatina (Linnaeus, 1758)
milletii, Anodonta milletii Ray & Drouët, 1848 - syn of: Anodonta anatina (Linnaeus, 1758)
mingorum, Anodon mingorum Heude, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
mingrelicus stevenianiformis, Unio mingrelicus stevenianiformis Zhadin, 1938 - syn of: Unio crassus Philipsson, 1788
minima, Anodonta minima Millet, 1833 - syn of: Anodonta anatina (Linnaeus, 1758)
minimus, Unio minimus Joannis, 1859 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
minor, Coelatura gabonensis minor Germain
minor, Unio minor Lea, 1843 - syn of: Toxolasma paulus (Lea, 1840)
minuta, Anodonta minuta Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
minuta, Anodonta minuta Villa, 1871 - syn of: Anodonta cygnea (Linnaeus, 1758)
minutulus, Unio minutulus Servain, 1888 - syn of: Unio crassus Philipsson, 1788
mira, Grandidieria burtoni mira Bourguignat
misara, Anodonta misara Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
misellus, Unio misellus Morelet, 1865 - syn of: Trapezoideus exolescens (Gould, 1843)
misellus subclathratus, Unio misellus subclathratus Von Martens, 1899 - syn of: Trapezoideus exolescens (Gould, 1843)
misoolensis, Unio misoolensis Schepman, 1897 - syn of: Hyridella misoolensis (Schepman, 1897)
mississippiensis, Unio mississippiensis Conrad, 1850 - syn of: Ligumia subrostrata (Say, 1831)
mitchelli, Fusconaia mitchelli (Dall, 1896)
miyitkyinae, Parreysia miyitkyinae Haas, 1969 - syn of: Parreysia burmana Blanford, 1869
moctera, Anodonta moctera Servain, 1888 - syn of: Anodonta cygnea (Linnaeus, 1758)
moctezumensis, Actinonaias moctezumensis (Pilsbry, 1910)
modelli, Physunio modelli Brandt, 1974
modesta, Anodonta modesta Lea, 1857 - syn of: Anodontoides ferussacianus (Lea, 1834)
modestus, Unio modestus Heude, 1877 - syn of: Ptychorhynchus murinum (Heude, 1883)
modestus, Unio modestus Küster, 1856 - syn of: Diplodon chilensis (Gray, 1852)
modestus, Unio modestus Lea, 1836 - syn of: Diplodon expansus (Küster, 1853)
modicellus, Unio modicellus Lea, 1859 - syn of: Dysnomia othcaloogensis (Lea, 1857)
modioliformis, Unio modioliformis Lea, 1834 - syn of: Pleurobema clava Lamarck, 1819
moellendorffi, Pressidens moellendorffi Haas, 1910
moesica, Anodonta moesica Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
moestus, Unio moestus Lea, 1841 - syn of: Toxolasma lividus Rafinesque, 1831
moineti, Unio moineti Bourguignat, 1886 - syn of: Coelatura horei (Smith, 1880)
moineti, Burtonia moineti Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
molinae, Unio molinae Philippi, 1847 - syn of: Diplodon chilensis (Gray, 1852)
molleuri, Unio molleuri Morlet, 1891 - syn of: Unionetta fabagina (Deshayes & Jullien, 1874)
mollis, Anodonta mollis Drouët, 1894 - syn of: Anodonta cygnea (Linnaeus, 1758)
monceti, Coelatura monceti (Bourguignat, 1883)
mondegana, Anodonta mondegana Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
mongolica, Middendorffinaia mongolica Middendorff, 1851 - syn of: Unio crassus Philipsson, 1788
mongolicus, Unio mongolicus Middendorff, 1851 - syn of: Unio crassus Philipsson, 1788
monodonta, Unio monodonta Say, 1829 - syn of: Margaritifera monodonta (Say, 1829)
monroensis, Elliptio monroensis Lea, 1843
monterosati, Anodonta monterosati Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
monterosatoi, Anodonta monterosatoi Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
montezianus, Anodon montezianus Sowerby, 1870 - syn of: Anodontites inaequivalva (Lea, 1868)
montezuma, Anodonta montezuma Lea, 1841 - syn of: Anodontites trigona (Spix & Wagner, 1827)
moquinianus, Unio moquinianus Dupuy, 1843 - syn of: Unio mancus Lamarck, 1819
moreleti, Pseudodon moreleti Crosse & Fischer, 1876 - syn of: Pseudodon tumidus (Morelet, 1866)
moreleti, Microcondylus moreleti Drouët, 1879 - syn of: Microcondylaea compressa (Menke, 1830)
moreletianus, Unio moreletianus de Folin & Bèrillon, 1877 - syn of: Unio mancus Lamarck, 1819
moreletianus, Unio moreletianus Heude, 1883 - syn of: Lamprotula kouangensis (Simpson, 1900)
moretonicus, Unio moretonicus Reeve, 1865 - syn of: Velesunio moretonicus (Reeve, 1865)
moretonicus, Unio moretonicus Smith, 1874 - syn of: Westralunio carteri Iredale, 1934
morini, Psoronaias morini (Morelet, 1851)
morini, Anodonta morini Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
morrini, Anodonta morrini Westerlund, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
mortoni, Amphinaias pustulosa mortoni Conrad
mortoni, Quadrula mortoni Conrad, 1836 - syn of: Amphinaias pustulosa mortoni (Conrad, 1836)
mortoniana, Anodonta mortoniana Lea, 1834 - syn of: Anodontites patagonica Lamarck, 1819
moskichevae, Unio moskichevae Bogatov & Starobogatov, 1992 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
moskvichevae, Unio moskvichevae Bogatov & Starobogatov, 1992 - syn of: Nodularia douglasiae (Gray, 1834)
mossambicensis, Coelatura mossambicensis (Von Martens, 1860)
mouhoti, Pseudodon mouhoti Lea, 1863
mouhoti, Radiatula mouhoti Vikhrev, Bolotov & Konopleva, 2017
moulinsiana, Anodonta moulinsiana Dupuy, 1850 - syn of: Anodonta cygnea (Linnaeus, 1758)
moulinsianus, Potomida moulinsianus Dupuy, 1850 - syn of: Potomida littoralis (Cuvier, 1798)
moussonianus, Unio moussonianus Lea, 1852 - syn of: Elliptio congaraea (Lea, 1831)
mucidus, Unio mucidus Morelet, 1845 - syn of: Unio pictorum (Linnaeus, 1758)
mucronatus, Unio mucronatus Barnes, 1823 - syn of: Elliptio dilatata Rafinesque, 1820
muelleri, Unio muelleri Rossmässler, 1838 - syn of: Unio tumidus Retzius, 1788
mulierum, Unio mulierum Servain, 1882 - syn of: Unio tumidus Retzius, 1788
multidentatus, Unio multidentatus Philippi, 1847 - syn of: Parreysia corrugata (Müller, 1774)
multistriatus, Unio multistriatus Haas, 1931 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
multistriatus, Unio multistriatus Lea, 1831 - syn of: Diplodon multistriatus (Lea, 1831)
mundanus, Unio mundanus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
mundegana, Anodonta mundegana Locard, 1899 - syn of: Anodonta cygnea (Linnaeus, 1758)
munensis, Harmandia munensis Brandt, 1974
murchisonianus, Unio murchisonianus Lea, 1834 - syn of: Nodularia douglasiae (Gray, 1834)
murinum, Ptychorhynchus murinum (Heude, 1883)
murrayensis, Unio murrayensis Lea, 1868 - syn of: Pleurobema stabilis (Lea, 1861)
musivus, Unio musivus Spengler, 1793 - syn of: Unio crassus Philipsson, 1788
mutabilis, Anodonta mutabilis Clessin, 1877 - syn of: Anodonta cygnea (Linnaeus, 1758)
mutabilis, Unio mutabilis Lea, 1859 - syn of: Hyridella depressa (Lamarck, 1819)
mutabilis, Unio mutabilis Reeve, 1865 - syn of: Hyridella depressa (Lamarck, 1819)
mutabilis diminuata, Anodonta mutabilis diminuata Clessin, 1876 - syn of: Anodonta cygnea (Linnaeus, 1758)
mutabilis fragilissima, Anodonta mutabilis fragilissima Clessin, 1876 - syn of: Anodonta cygnea (Linnaeus, 1758)
mutabilis lacustrina, Anodonta mutabilis lacustrina Clessin, 1877 - syn of: Anodonta cygnea (Linnaeus, 1758)
mutelaeformis, Nitia mutelaeformis (Germain, 1906)
mweruensis, Mweruella mweruensis (Smith, 1908)
myersiana, Hyriopsis myersiana Lea, 1856
mytiloides, Unio mytiloides Bory De Saint-Vincent, 1827 - syn of: Unio crassus Philipsson, 1788
mytiloides, Pleurobema mytiloides Rafinesque, 1820 - syn of: Pleurobema clava Lamarck, 1819
mytiloides, Uniopsis mytiloides Swainson, 1840 - syn of: Alasmidonta undulata (Say, 1817)
nagpoorensis, Unio nagpoorensis Lea, 1860 - syn of: Parreysia corrugata (Müller, 1774)
nana, Unio nana Lamarck, 1819 - syn of: Unio crassus Philipsson, 1788
nankingensis, Pseudodon nankingensis (Heude, 1874)
nanningensis, Lamprotula nanningensis Qian, Fang & He, 2015
nansoutyana, Anodonta nansoutyana Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
nanus, Unio crassus nanus Lamarck
napeanensis, Unio napeanensis Conrad, 1850 - syn of: Hyridella australis (Lamarck, 1819)
narainpirensis, Lamellidens narainpirensis Preston, 1912 - syn of: Lamellidens narainporensis Preston, 1912
narainporensis, Lamellidens narainporensis Preston, 1912
nashvillianus, Unio nashvillianus Lea, 1834 - syn of: Ligumia subrostrata (Say, 1831)
nasuta, Ligumia nasuta (Say, 1817)
nasuta, Unio nasuta Lamarck, 1819 - syn of: Elliptio dilatata Rafinesque, 1820
nasutulus, Unio nasutulus Lea, 1863 - syn of: Elliptio producta Conrad, 1836
nasutus, Unio nasutus Say, 1817 - syn of: Elliptio producta Conrad, 1836
natosini, Unio natosini McLearn, 1929 † (FOSSIL)
navensis, Unio navensis Böttger, 1912 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
navicella, Anodonta navicella Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
navicula, Anodonta navicula Preston, 1912 - syn of: Sinanodonta woodiana (Lea, 1834)
naviculoides, Unio naviculoides Lea, 1857 - syn of: Elliptio lanceolata Lea, 1827
naviformis, Unio naviformis Lamarck, 1819 - syn of: Theliderma cylindrica (Say, 1817)
navigioliformis, Unio navigioliformis Lea, 1859 - syn of: Cucumerunio novaehollandiae (Gray, 1834)
naviglioformis, Unio naviglioformis Woodward, 1984 - syn of: Cucumerunio novaehollandiae (Gray, 1834)
navigoliformis, Unio navigoliformis Simpson, 1900 - syn of: Cucumerunio novaehollandiae (Gray, 1834)
nebulosa, Villosa nebulosa (Conrad, 1834)
neglectus, Unio neglectus Lea, 1843 - syn of: Lasmigona subviridis (Conrad, 1835)
neglectus, Unio neglectus Sowerby, 1868 - syn of: Unio abbevillensis Lea, 1857
neislerii, Amblema neislerii Lea, 1858
neothaumus, Unio neothaumus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
neotriangularis, Solenaia neotriangularis He & Zhuang, 2013
nepeanensis, Unio nepeanensis Conrad, 1850 - syn of: Hyridella australis (Lamarck, 1819)
nervosa, Magnonaias nervosa (Rafinesque, 1820)
nesemanni, Trapezoideus nesemanni Konopleva, Vikhrev & Bolotov, 2017
nessorhynchus, Unio nessorhynchus Küster, 1854 - syn of: Unio crassus Philipsson, 1788
neusensis, Unio neusensis Lea, 1858 - syn of: Unio abbevillensis Lea, 1857
nevesi, Unio nevesi Da Silva e Castro, 1885 - syn of: Unio abrantesianus Locard, 1899
nevirnensis, Anodonta nevirnensis Locard, 1884 - syn of: Anodonta cygnea (Linnaeus, 1758)
newcombianus, Unio newcombianus Lea, 1856 - syn of: Pachynaias cyrenoides (Philippi, 1847)
nexus, Unio nexus Say, 1831 - syn of: Epioblasma arcaeformis (Lea, 1831)
nguigmiensis, Unio nguigmiensis Germain, 1909 - syn of: Coelatura aegyptiaca (Cailliaud, 1827)
nicaraguae, Anodonta nicaraguae Philippi, 1848 - syn of: Anodontites trapesialis (Lamarck, 1818)
nicaraguensis, Pachynaias nicaraguensis (Lea, 1868)
nickliniana, Magnonaias nickliniana (Lea, 1834)
nicolloni, Unio nicolloni Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
nieuwenhuisi, Schepmania nieuwenhuisi (Schepman, 1898)
nigella, Elliptio nigella Lea, 1852
niger, Unio niger Joannis, 1859 - syn of: Unio tumidus Retzius, 1788
nigeriensis, Hyriopsis nigeriensis Mongin, 1968 † - syn of: Pterotegulaedon nigeriensis (Mongin, 1968) † (FOSSIL)
nigeriensis tortuosa, Hyriopsis nigeriensis tortuosa Mongin, 1968 † - syn of: Pterotegulaedon tortuosa (Mongin, 1968) † (FOSSIL)
nigerrimus, Unio nigerrimus Lea, 1852 - syn of: Villosa lienosa (Conrad, 1834)
nigra, Unio nigra Rafinesque, 1819 - syn of: Elliptio crassidens Lamarck, 1819
nigra fusca, Elliptio nigra fusca Rafinesque, 1820 - syn of: Elliptio crassidens Lamarck, 1819
nigra maculata, Elliptio nigra maculata Rafinesque, 1820 - syn of: Elliptio crassidens Lamarck, 1819
nigricans, Unio nigricans Fitzinger, 1833 - syn of: Unio crassus Philipsson, 1788
nigricans, Anodon nigricans Heude, 1877 - syn of: Sinanodonta woodiana (Lea, 1834)
niloticus, Unio niloticus Cailliaud, 1823 - syn of: Coelatura aegyptiaca (Cailliaud, 1827)
niloticus, Unio niloticus Sowerby, 1868 - syn of: Diplodon granosus (Bruguière, 1792)
nilssonii, Anodonta nilssonii Küster, 1842 - syn of: Anodonta anatina (Linnaeus, 1758)
nipponensis, Unio nipponensis Von Martens, 1877 - syn of: Nodularia douglasiae (Gray, 1834)
nisibina, Leguminaia nisibina Kobelt, 1913 - syn of: Leguminaia wheatleyi (Lea, 1862)
nitidulus, Unio nitidulus Küster, 1861 - syn of: Diplodon wymanii (Lea, 1860)
nivirnensis, Anodonta nivirnensis Germain, 1931 - syn of: Anodonta cygnea (Linnaeus, 1758)
nobilis, Quadrula nobilis (Conrad, 1854)
nobilis, Unio nobilis Conrad, 1854 - syn of: Quadrula apiculata Say, 1829
nobilis, Anodonta nobilis Drouët, 1894 - syn of: Anodonta cygnea (Linnaeus, 1758)
nocturna, Anodonta nocturna Servain, 1888 - syn of: Anodonta cygnea (Linnaeus, 1758)
nocturnis, Unio nocturnis Lea, 1860 - syn of: Rhipidodonta funebralis (Lea, 1834)
nocturnus, Unio nocturnus Lea, 1860 - syn of: Rhipidodonta funebralis (Lea, 1834)
nodicella, Dysnomia nodicella ITIS, 2012 - syn of: Dysnomia othcaloogensis (Lea, 1857)
nodulata, Amphinaias nodulata (Rafinesque, 1820)
nodulosa, Lamprotula nodulosa (Wood, 1815)
noeli, Anodonta noeli Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
nolani, Unio nolani Wright, 1888 - syn of: Elliptio jayensis Lea, 1838
nopalatensis, Anodon nopalatensis Sowerby, 1867 - syn of: Anodonta grandis Say, 1829
nordenskioldi, Pseudanodonta nordenskioldi Bourguignat, 1880 - syn of: Pseudanodonta complanata (Rossmässler, 1835)
normandi, Anodonta normandi Dupuy, 1849 - syn of: Pseudanodonta elongata (Holandre, 1836)
northamptonensis, Unio northamptonensis Lea, 1862 - syn of: Unio abbevillensis Lea, 1857
nova, Anodonta nova Dybowski, 1913 - syn of: Anodonta anatina (Linnaeus, 1758)
novaehollandiae, Unio novaehollandiae Gray, 1834 - syn of: Cucumerunio novaehollandiae (Gray, 1834)
novileonis, Disconaias novileonis (Pilsbry, 1910)
novus, Unio novus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
nubianus, Unio nubianus Cox, 1955 † (FOSSIL)
nubilus, Unio nubilus Lea, 1868 - syn of: Unio abbevillensis Lea, 1857
nubilus, Unio nubilus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
nucleopsis, Unio nucleopsis Conrad, 1849 - syn of: Pleurobema georgianum Lea, 1841
nucleus, Scabies nucleus (Lea, 1856)
nuculinus, Unio nuculinus Philippi, 1849 - syn of: Micronaias arata (Lea, 1845)
nuttalliana, Anodonta nuttalliana (Lea, 1838)
nuttalliana, Radiatula nuttalliana (Lea, 1856)
nuttalliana idahoensis, Anodonta nuttalliana idahoensis Hemphill, 1891 - syn of: Anodonta nuttalliana (Lea, 1838)
nux, Unio nux Küster, 1861 - syn of: Dysnomia turgidula Lea, 1858
nux, Pleurobema nux Lea, 1852 - syn of: Pleurobema perovatum Conrad, 1834
nyassaensis, Nyassunio nyassaensis (Lea, 1864)
nyassaensis tanganyicensis, Unio nyassaensis tanganyicensis Smith, 1881 - syn of: Nyassunio ujijiensis (Crosse, 1881)
nyassaensis ujijiensis, Unio nyassaensis ujijiensis Crosse, 1881 - syn of: Nyassunio ujijiensis (Crosse, 1881)
nymphigena, Anodonta nymphigena Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
obesa, Trapezidens obesa Kondakov, Konopleva & Vikhrev, 2017
obesus, Uniomerus obesus Lea, 1831 - syn of: Uniomerus carolinianus (Bosc, 1801)
obfuscus, Unio obfuscus Lea, 1857 - syn of: Villosa lienosa (Conrad, 1834)
obliquata, Epioblasma obliquata (Rafinesque, 1820)
obliquata perobliqua, Epioblasma obliquata perobliqua Conrad, 1836 - syn of: Epioblasma obliquata (Rafinesque, 1820)
obliquus, Unio obliquus Potiez & Michaud, 1844 - syn of: Epioblasma torulosa (Rafinesque, 1820)
oblita, Anodonta oblita Lea, 1852 - syn of: Anodontoides ferussacianus (Lea, 1834)
oblitus, Unio oblitus Lea, 1870 - syn of: Scabies crispata (Gould, 1843)
oblonga, Anodonta oblonga Dupuy, 1852 - syn of: Anodonta cygnea (Linnaeus, 1758)
oblonga, Anodonta oblonga Millet, 1831 - syn of: Anodonta cygnea (Linnaeus, 1758)
oblongus, Unio oblongus Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
obscura, Anodon obscura Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
obturata, Anodonta obturata Heude, 1881 - syn of: Sinanodonta woodiana (Lea, 1834)
obtusa, Unio obtusa D'Orbigny, 1835 - syn of: Diplodon chilensis (Gray, 1852)
obtusa, Anodon obtusa Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
obtusa, Anodonta obtusa Potier & Michaud, 0 - syn of: Chambardia rubens (Lamarck, 1819)
obtusata, Anodonta obtusata Simpson, 1900 - syn of: Sinanodonta woodiana (Lea, 1834)
obtusula, Anodonta obtusula Hupé, 1857 - syn of: Anodontites trigona (Spix & Wagner, 1827)
obtusus, Anodon obtusus Spix & Wagner, 1827 - syn of: Anodontites obtusa (Spix & Wagner, 1827)
obuncus, Unio obuncus Lea, 1871 - syn of: Fusconaia cor (Conrad, 1834)
obvoluta, Anodonta obvoluta Menke, 1830 - syn of: Anodonta cygnea (Linnaeus, 1758)
occata, Radiatula occata (Lea, 1860)
occidentalis, Ptychobranchus occidentalis (Conrad, 1836)
occidentalis, Unio occidentalis Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
occidentalis, Dipsas occidentalis Heude, 1885 - syn of: Cristaria plicata (Leach, 1815)
occulta, Elliptio occulta (Lea, 1843)
ochotica, Middendorffinaia ochotica Bogatov, 2000 - syn of: Unio crassus Philipsson, 1788
ochracea, Leptodea ochracea (Say, 1817)
ocnera, Anodonta ocnera Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
ocnerella, Anodonta ocnerella Servain, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
ocresanus, Unio ocresanus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
oesiacus, Unio oesiacus Locard, 1889 - syn of: Unio pictorum (Linnaeus, 1758)
ogurae, Sinanodonta ogurae (Kuroda & Habe, 1987)
ohiensis, Potamilus ohiensis Rafinesque, 1820
ohioensis, Potamilus ohioensis Rafinesque, 1820 - syn of: Potamilus ohiensis Rafinesque, 1820
okefenokensis, Unio okefenokensis Wright, 1899 - syn of: Elliptio crassidens Lamarck, 1819
oleivorus, Solenaia oleivorus (Heude, 1877)
oligocenica, Palindonaia oligocenica Marquet, Lenaerts & Laporte, 2012 † (FOSSIL)
olivacea, Parreysia olivacea Prashad, 1930
olivaria, Radiatula olivaria (Lea, 1831)
olivaria, Obovaria olivaria Rafinesque, 1820
olivarius, Unio olivarius Lea, 1831 - syn of: Radiatula olivaria (Lea, 1831)
omiensis, Pseudodon omiensis Heimburg, 1884
ononensis, Anodonta ononensis Lea, 1870 - syn of: Cristaria plicata (Leach, 1815)
onowensis, Anodonta onowensis Lea, 1852 - syn of: Cristaria plicata (Leach, 1815)
opaca, Anodonta opaca Lea, 1852 - syn of: Anodonta grandis Say, 1829
opacata, Barynaias opacata (Crosse & Fischer, 1893)
opalina, Anodon opalina Anthony, 1865 - syn of: Anodonta grandis Say, 1829
opalina, Anodonta opalina Küster, 1842 - syn of: Anodonta cygnea (Linnaeus, 1758)
opilina, Anodonta opilina Lea, 1852 - syn of: Anodonta cygnea (Linnaeus, 1758)
orbicularis, Anodon orbicularis Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
orbiculatus, Unio orbiculatus Hildreth, 1828 - syn of: Lampsilis abrupta Say, 1831
orbignyi, Unio orbignyi Deville & Hupé, 1850 - syn of: Castalia orbignyi (Deville & Hupé, 1850)
orbus, Unio orbus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
orcuttii, Unio orcuttii Wright, 1888 - syn of: Elliptio jayensis Lea, 1838
oregonensis, Nephronaias oregonensis (Lea, 1852)
oregonensis, Anodonta oregonensis Lea, 1838
oriens, Unio oriens Lea, 1831 - syn of: Hemistena lata Rafinesque, 1820
orientalis, Elongaria orientalis (Lea, 1840)
orientalis, Unio orientalis Bourguignat, 1852 - syn of: Unio crassus Philipsson, 1788
ornata, Lampsilis ornata Conrad, 1835
ornatus, Unio ornatus Lea, 1861 - syn of: Fusconaia barnesiana (Lea, 1829)
ortmanni, Villosa ortmanni (Walker, 1925)
ortmanni, Pseudospatha ortmanni Pilsbry & Bequaert, 1927 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
osbeckii, Unio osbeckii Philippi, 1844 - syn of: Nodularia douglasiae (Gray, 1834)
oscari, Unio oscari Wright, 1892 - syn of: Elliptio jayensis Lea, 1838
ostiaria, Anodonta ostiaria Drouët, 1881 - syn of: Anodonta anatina (Linnaeus, 1758)
ostiarum, Anodonta ostiarum Drouët, 1881 - syn of: Anodonta anatina (Linnaeus, 1758)
ostreata, Psoronaias ostreata (Morelet, 1849)
otcaloogensis, Unio otcaloogensis De Gregorio, 1914 - syn of: Dysnomia othcaloogensis (Lea, 1857)
othcaloogensis, Dysnomia othcaloogensis (Lea, 1857)
ovalis, Unio ovalis Montagu, 1803 - syn of: Unio tumidus Retzius, 1788
ovalis, Pseudodon ovalis Morlet, 1889 - syn of: Pseudodon ellipticus Conrad, 1865
ovalis, Anodonta ovalis Potiez & Michaud, 1844 - syn of: Anodonta cygnea (Linnaeus, 1758)
ovata, Lampsilis ovata (Say, 1817)
ovata, Acuticosta ovata (Simpson, 1900)
ovata, Ellipsanodon ovata Bogatov & Starobogatov, 1996 - syn of: Sinanodonta woodiana (Lea, 1834)
ovata, Unio ovata Donovan, 1802 - syn of: Unio tumidus Retzius, 1788
ovata, Anodonta ovata Küster, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
ovata, Pseudobaphia ovata Liu, Duan & Wang, 1994 - syn of: Lamellidens liuovatus (Zhuang & He, 2013)
ovata, Anodon ovata Swainson, 1841 - syn of: Anodontites trigona (Spix & Wagner, 1827)
ovata ventricosa, Lampsilis ovata ventricosa Barnes, 1823
oviforme, Pleurobema oviforme Conrad, 1834
oviforme argenteum, Pleurobema oviforme argenteum Lea
oviforme holstonense, Pleurobema oviforme holstonense Lea
ovuliformis, Potomida ovuliformis Locard, 1893 - syn of: Potomida littoralis (Cuvier, 1798)
oxyrhyncha, Lanceolaria oxyrhyncha Von Martens, 1861
oxyrhyncha cuspidata, Lanceolaria oxyrhyncha cuspidata Kira, 1959 - syn of: Lanceolaria grayana (Lea, 1834)
oxyrhyncha cuspidata, Lanceolaria oxyrhyncha cuspidata Kuroda
oxyrhynchus, Unio oxyrhynchus Brevière, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
oxyrhynchus, Unio oxyrhynchus Von Martens, 1861 - syn of: Lanceolaria oxyrhyncha Von Martens, 1861
ozarkensis, Fusconaia ozarkensis (Call, 1887)
pachosteus, Plethobasus pachosteus Morrison, 1969 - syn of: Plethobasus cicatricosus (Say, 1829)
pachyodon, Elliptio pachyodon Pilsbry, 1953 - syn of: Elliptio crassidens Lamarck, 1819
pachysoma, Radiatula pachysoma (Benson, 1862)
pacifica, Sinanodonta woodiana pacifica Heude
pacomei, Potomida pacomei Bourguignat, 1889 - syn of: Potomida littoralis (Cuvier, 1798)
padana, Anodonta padana Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
pahangensis, Unio pahangensis Smith, 1899 - syn of: Rectidens sumatrensis (Dunker, 1852)
palatinus, Unio palatinus Haas, 1911 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
palembangensis, Unio palembangensis Strubell, 1897 - syn of: Rectidens sumatrensis (Dunker, 1852)
paliatus, Unio paliatus Lea, 1836 - syn of: Unio abbevillensis Lea, 1857
pallaryi, Anodonta pallaryi Bèdé, 1932 - syn of: Anodonta cygnea (Linnaeus, 1758)
pallegoixi, Trapezoideus exolescens pallegoixi Sowerby
pallens, Unio pallens Rossmässler, 1842 - syn of: Unio mancus Lamarck, 1819
pallida, Anodon pallida Anthony, 1865 - syn of: Pyganodon fragilis (Lamarck, 1819)
pallidofulvus, Unio pallidofulvus Lea, 1861 - syn of: Pleurobema hanleyianum Lea, 1852
paludosa, Delphinonaias paludosa (Morelet, 1849)
paludosus, Anodonta paludosus Turton, 1822 - syn of: Anodonta cygnea (Linnaeus, 1758)
palustris, Anodonta palustris Pini, 1884 - syn of: Anodonta cygnea (Linnaeus, 1758)
palustris liogyra, Unio palustris liogyra Westerlund, 1897 - syn of: Ladislavella liogyra (Westerlund, 1897)
palustris maritima, Unio palustris maritima Clessin, 1878 - syn of: Stagnicola fusca maritima (Clessin, 1878)
pamisinus, Unio pamisinus Drouët, 1894 - syn of: Potomida littoralis (Cuvier, 1798)
pammegala, Anodonta pammegala Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
panacoensis, Disconaias panacoensis (Busch, 1843)
pancici, Pseudanodonta pancici Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
panhai, Trapezoideus panhai Konopleva, Bolotov & Kondakov, 2017
pantoensis, Inversidens pantoensis (Neumayr, 1899)
papyracea, Anodon papyracea Anthony, 1865 - syn of: Strophitus undulatus (Say, 1817)
paraeformis, Unio paraeformis Figueiras, 1965 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
paraguayanus, Unio paraguayanus Von Martens, 1895 - syn of: Rhipidodonta variabilis (Maton, 1811)
paraguayensis, Unio paraguayensis Lea, 1866 - syn of: Diplodon delodontus paraguayensis (Lea, 1866)
parallela, Anodonta parallela White, 0 - syn of: Anodonta cataracta Say, 1817
paramattensis, Unio paramattensis Lea, 1862 - syn of: Hyridella depressa (Lamarck, 1819)
paramettensis, Unio paramettensis De Gregorio, 1914 - syn of: Hyridella depressa (Lamarck, 1819)
paranensis, Unio paranensis Lea, 1834 - syn of: Rhipidodonta variabilis (Maton, 1811)
parcesculpta, Schepmania parcesculpta (Von Martens, 1903)
parcus, Unio parcus Lea, 1866 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
parishii, Anodonta parishii Gray, 1834 - syn of: Leila blainvilliana (Lea, 1834)
parma, Unio parma Sowerby, 1868 - syn of: Parreysia tavoyensis (Gould, 1843)
parmata, Anodonta parmata Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
parreyssii, Anodonta parreyssii Drouët, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
parva, Amuranodonta parva Moskvicheva, 1973 - syn of: Anemina arcaeformis (Heude, 1877)
parva cahni, Carunculina parva cahni Baker, 1927 - syn of: Toxolasma parvus (Barnes, 1823)
parvulus, Medionidus parvulus (Lea, 1860)
parvus, Toxolasma parvus (Barnes, 1823)
parvus, Unio parvus Conrad, 1836 - syn of: Toxolasma texasiensis Lea, 1838
passavanti, Unio passavanti Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
pastasana, Anodonta pastasana Clessin, 1879 - syn of: Anodontites tenebricosa (Lea, 1834)
patagonicus, Unio patagonicus D'Orbigny, 1835 - syn of: Diplodon chilensis patagonica (D'Orbigny, 1835)
patelloides, Unio patelloides Lea, 1860 - syn of: Rhipidodonta rhombea (Spix & Wagner, 1827)
patrickae, Carunculina patrickae Bates, 1966 - syn of: Toxolasma pullus Conrad, 1838
patsaligensis, Pleurobema patsaligensis Simpson, 1900 - syn of: Pleurobema strodeanum Wright, 1898
patulus, Unio patulus Lea, 1829 - syn of: Pleurobema clava Lamarck, 1819
paulinoi, Anodonta paulinoi Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
paulinoi, Unio paulinoi Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
paulista, Unio paulista Ihering, 1893 - syn of: Diplodon expansus (Küster, 1853)
paulus, Toxolasma paulus (Lea, 1840)
paupercula, Anodonta paupercula Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
paviei, Chamberlainia paviei (Morelet, 1891)
pavonia, Anodonta pavonia Lea, 1838 - syn of: Strophitus undulatus (Say, 1817)
pazii, Anodonta pazii Lea, 1866 - syn of: Anodontites trapezea (Spix & Wagner, 1827)
pechaudiana, Anodonta pechaudiana Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
pecten, Parreysia pecten (Preston, 1912)
pectitus, Unio pectitus Conrad, 1854 - syn of: Epioblasma obliquata (Rafinesque, 1820)
pectorosa, Actinonaias pectorosa (Conrad, 1834)
pedemontana, Leguminaia pedemontana Pollonera, 1899 - syn of: Microcondylaea compressa (Menke, 1830)
peggyae, Utterbackiana peggyae Johnson, 1965
peguensis, Unio peguensis Anthony, 1865 - syn of: Trapezoideus exolescens (Gould, 1843)
pellislacerti, Unio pellislacerti Morelet, 1865 - syn of: Scabies crispata (Gould, 1843)
pelophila, Anodonta pelophila Locard, 1899 - syn of: Anodonta cygnea (Linnaeus, 1758)
penchinati, Alasmodonta penchinati Bourguignat, 1870 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
penchinatianus, Unio mancus penchinatianus Bourguignat
penicillatus, Medionidus penicillatus (Lea, 1857)
penicillatus, Anodon penicillatus Gray, 1834 - syn of: Anodontites trapesialis (Lamarck, 1818)
peninsularis, Utterbackiana peninsularis Bogan & Hoeh, 1995
peninsularis, Trapezoideus peninsularis Simpson, 1900
penita, Epioblasma penita (Conrad, 1834)
pensitatus, Unio pensitatus Crosse & Fischer, 1894 - syn of: Ctenodesma borneensis (Issel, 1874)
pensylvanica, Anodonta pensylvanica Lamarck, 1819 - syn of: Strophitus undulatus (Say, 1817)
pepinianus, Unio pepinianus Lea, 1838 - syn of: Anodonta grandis Say, 1829
peraeformis, Unio peraeformis Lea, 1860 - syn of: Rhipidodonta charruana peraeformis (Lea, 1860)
perakensis, Unio perakensis Morgan, 1885 - syn of: Rectidens sumatrensis (Dunker, 1852)
percoarctatus, Unio percoarctatus Lea, 1857 - syn of: Unio abbevillensis Lea, 1857
percompressa, Psorula percompressa (Von Martens, 1887)
perconvexa, Parreysia perconvexa Preston, 1912
perdix, Unio perdix Lea, 1834 - syn of: Actinonaias pectorosa (Conrad, 1834)
peregra torquilla, Unio peregra torquilla Westerlund, 1876 - syn of: Lymnaea torquilla (Westerlund, 1876)
peregrinus, Unio peregrinus Phillips, 1829
perlatus, Unio perlatus Lea, 1863 - syn of: Elliptio arctata Conrad, 1834
perlora, Anodonta perlora Schröder, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
perlucens, Unio perlucens Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
perovalis, Hamiota perovalis (Conrad, 1834)
perovatum, Pleurobema perovatum Conrad, 1834
perpasta, Lampsilis perpasta Lea, 1861 - syn of: Lampsilis straminea Conrad, 1834
perplexus, Unio perplexus Lea, 1831 - syn of: Epioblasma torulosa (Rafinesque, 1820)
perplexus, Unio perplexus Say, 1829 - syn of: Epioblasma obliquata (Rafinesque, 1820)
perplicata, Amblema plicata perplicata Conrad
perpurpurea, Villosa perpurpurea (Lea, 1861)
perroudi, Anodonta perroudi Locard, 1884 - syn of: Anodonta cygnea (Linnaeus, 1758)
perroudi, Unio perroudi Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
persculpta, Nodularia persculpta Haas, 1910 - syn of: Scabies crispata (Gould, 1843)
personata, Epioblasma personata (Say, 1829)
personatus, Unio personatus Conrad, 1834 - syn of: Fusconaia subrotunda (Lea, 1831)
perstriatus, Unio perstriatus Lea, 1852 - syn of: Elliptio arctata Conrad, 1834
peruviana, Amblema peruviana Lamarck, 1819 - syn of: Amblema plicata (Say, 1817)
peruvianus, Unio peruvianus Lamarck, 1819 - syn of: Amblema plicata (Say, 1817)
petrina, Amphinaias petrina (Gould, 1855)
petroi, Unio petroi Paetel, 1890 - syn of: Unio terminalis Bourguignat, 1852
petshorica, Anodonta petshorica Zhadin, 1938 - syn of: Anodonta cygnea (Linnaeus, 1758)
pfeifferi, Anodonta pfeifferi Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
pfeifferi, Unio pfeifferi Dunker, 1848 - syn of: Diplodon multistriatus (Lea, 1831)
pfisteri, Ptychorhynchus pfisteri (Heude, 1874)
pfisteri insperatus, Unio pfisteri insperatus Heude, 1877 - syn of: Ptychorhynchus pfisteri (Heude, 1874)
phaselus, Scabies phaselus (Lea, 1856)
phaseolus, Scabies phaseolus Lea, 1856 - syn of: Scabies phaselus (Lea, 1856)
phenchooganjensis, Lamellidens phenchooganjensis Preston, 1912
philippianus, Unio philippianus Küster, 1861 - syn of: Velesunio ambiguus (Philippi, 1847)
phillipsii, Unio phillipsii Reeve, 1864 - syn of: Epioblasma torulosa (Rafinesque, 1820)
pholadiformis, Anodon pholadiformis Sowerby, 1870 - syn of: Pyganodon fragilis (Lamarck, 1819)
piceus, Unio piceus Lea, 1860 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
pictetiana, Anodonta pictetiana Brot, 1867 - syn of: Anodonta cygnea (Linnaeus, 1758)
pictetiana elongata, Anodonta pictetiana elongata Brot, 1867 - syn of: Anodonta cygnea (Linnaeus, 1758)
pictetiana rostrata, Anodonta pictetiana rostrata Brot, 1867 - syn of: Anodonta cygnea (Linnaeus, 1758)
pictorum, Unio pictorum (Linnaeus, 1758)
pictorum, Unio pictorum Schrenck, 1867 - syn of: Nodularia douglasiae (Gray, 1834)
pictorum amurensis, Unio pictorum amurensis Mousson, 1887 - syn of: Nodularia douglasiae (Gray, 1834)
pictorum ascanius, Unio pictorum ascanius Kobelt, 1913
pictorum delphinus, Unio pictorum delphinus Spengler, 1793 - syn of: Unio abrantesianus Locard, 1899
pictorum latirostris, Unio pictorum latirostris Küster, 1854
pictorum longirostris, Unio pictorum longirostris Middendorff, 1851 - syn of: Nodularia douglasiae (Gray, 1834)
pictorum platyrhynchoideus, Unio pictorum platyrhynchoideus Dupuy, 1849
pictorum platyrhynchus, Unio pictorum platyrhynchus Rossmässler, 1835
pictorum ponderosus, Unio pictorum ponderosus Spitzi, 1844
pictorum praeposterus, Unio pictorum praeposterus Küster, 1854
pictorum proechistus, Unio pictorum proechistus Bourguignat, 1870
pictorum rostratus, Unio pictorum rostratus Lamarck, 1819
pictus, Unio pictus Beck, 1864 - syn of: Unio tumidus Retzius, 1788
pierrei, Pseudodon pierrei Rochebrune, 1881 - syn of: Pseudodon mouhoti Lea, 1863
pietri, Unio pietri Kobelt, 1895 - syn of: Unio terminalis Bourguignat, 1852
pietri, Unio pietri Lortet, 1880 - syn of: Unio terminalis Bourguignat, 1852
piger, Unio piger Lea, 1860 - syn of: Diplodon wymanii (Lea, 1860)
pigerrima, Barynaias pigerrima (Crosse & Fischer, 1893)
pilariana, Anodonta pilariana Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
pilaris, Unio pilaris Lea, 1840 - syn of: Fusconaia subrotunda (Lea, 1831)
pilata, Radiatula pilata (Lea, 1866)
pileus, Unio pileus Lea, 1831 - syn of: Epioblasma personata (Say, 1829)
pilloti, Unio pilloti Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
pilsbryana, Disconaias pilsbryana Frierson, 1927 - syn of: Disconaias purpuriata (Say, 1831)
pinax, Unio pinax Benson, 1862 - syn of: Parreysia favidens (Benson, 1862)
pinchoniana, Hyriopsis pinchoniana (Heude, 1883)
pincianus, Unio pincianus Bourguignat, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
pinei, Unio pinei Wright, 1897 - syn of: Elliptio jayensis Lea, 1838
pinii, Anodonta pinii Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
piscatorum, Sinanodonta woodiana piscatorum Heude
pisciculus, Cuneopsis pisciculus (Heude, 1874)
piscinale, Colletopterum piscinale Nilsson, 1882 - syn of: Anodonta anatina (Linnaeus, 1758)
piscinale falcatum, Colletopterum piscinale falcatum Drouët, 1879 - syn of: Anodonta anatina (Linnaeus, 1758)
piscinalis, Anodonta piscinalis Kobelt, 1880 - syn of: Anodonta cygnea (Linnaeus, 1758)
piscinalis, Unio piscinalis Rossmässler, 1836 - syn of: Unio crassus Philipsson, 1788
piscinalis major, Anodonta piscinalis major Brot, 1867 - syn of: Anodonta cygnea (Linnaeus, 1758)
piscinalis shadini, Colletopterum piscinalis shadini Starobogatov & Pirogov, 1970 - syn of: Anodonta anatina (Linnaeus, 1758)
plagiosoma, Unio plagiosoma Benson, 1862 - syn of: Parreysia favidens (Benson, 1862)
plana, Anodonta plana Lea, 1834 - syn of: Anodonta grandis Say, 1829
planilateris, Unio planilateris Conrad, 1838 - syn of: Elliptio congaraea (Lea, 1831)
planivalvis, Delphinonaias planivalvis (Morelet, 1851)
plantii, Unio plantii Lea, 1857 - syn of: Elliptio fumata (Lea, 1857)
planulata, Anodonta planulata Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
planus, Unio planus Conrad, 1836 - syn of: Leptodea leptodon (Rafinesque, 1820)
planus, Unio planus Mongin, 1963 † (FOSSIL)
planus, Unio planus Studer, 1820 - syn of: Unio crassus Philipsson, 1788
platyodon, Unio platyodon Jordan, 1879 - syn of: Unio pictorum (Linnaeus, 1758)
platyrhincha, Anodonta platyrhincha Gallenstein, 1852 - syn of: Anodonta cygnea (Linnaeus, 1758)
platyrhynchoideus, Unio pictorum platyrhynchoideus Dupuy
platyrhynchus, Unio pictorum platyrhynchus Rossmässler
pleasi, Lampsilis pleasi Marsh, 1891 - syn of: Venustaconcha pleasii (Marsh, 1891)
pleasii, Venustaconcha pleasii (Marsh, 1891)
plebeius, Unio plebeius Drouët, 1888 - syn of: Unio mancus Lamarck, 1819
plectophorus, Unio plectophorus Conrad, 1849 - syn of: Elliptoideus sloatianus (Lea, 1840)
plenum, Pleurobema plenum Lea, 1840
plexoideus, Psoronaias plexoideus Frierson, 1927 - syn of: Barynaias plexus (Conrad, 1838)
plexus, Barynaias plexus (Conrad, 1838)
plexus, Unio plexus Conrad, 1838 - syn of: Barynaias plexus (Conrad, 1838)
plicata, Cristaria plicata (Leach, 1815)
plicata, Amblema plicata (Say, 1817)
plicata clessini, Dipsas plicata clessini Kobelt, 1879 - syn of: Cristaria plicata (Leach, 1815)
plicata japonica, Dipsas plicata japonica Kobelt, 1879 - syn of: Cristaria plicata (Leach, 1815)
plicata perplicata, Amblema plicata perplicata (Conrad, 1834)
plicata spatiosa, Cristaria plicata spatiosa Clessin, 1875
plicatula, Nephronaias plicatula (Charpentier, 1856)
plicatula, Barbala plicatula Paetel, 1890 - syn of: Cristaria plicata (Leach, 1815)
plicatulus, Unio plicatulus Lea, 1859 - syn of: Ctenodesma borneensis (Issel, 1874)
plicatus, Anodon plicatus Haldeman, 1842 - syn of: Anodontoides ferussacianus (Lea, 1834)
plicatus, Unio plicatus Sowerby, 1866 - syn of: Cristaria plicata (Leach, 1815)
pliciferus, Unio pliciferus Lea, 1838 - syn of: Barynaias plexus (Conrad, 1838)
pliciferus minor, Unio pliciferus minor Crosse & Fischer, 1894 - syn of: Barynaias plexus (Conrad, 1838)
pliculosus, Unio pliculosus Von Martens, 1894 - syn of: Nodularia douglasiae (Gray, 1834)
plumbea, Lamprotula plumbea (Chemnitz, 1795)
poeyana, Nephritica poeyana (Lea, 1857)
poirieri, Zairia poirieri Rochebrune, 1886 - syn of: Coelatura gabonensis (Küster, 1862)
politus, Unio politus Conrad, 1837 - syn of: Fusconaia subrotunda (Lea, 1831)
polymorphus, Unio polymorphus Wright, 1899 - syn of: Elliptio monroensis Lea, 1843
polysticta, Lamprotula polysticta (Heude, 1877)
ponderosa, Oxynaia jourdyi ponderosa Dautzenberg & Fischer
ponderosa, Pseudodon ponderosa Preston, 1909 - syn of: Pseudodon chaperi (Morgan, 1885)
ponderosum, Anodonta ponderosum Pfeiffer, 1825 - syn of: Anodonta anatina (Linnaeus, 1758)
ponderosum rumanicum, Colletopterum ponderosum rumanicum Letourneux, 1881 - syn of: Anodonta anatina (Linnaeus, 1758)
ponderosus, Unio pictorum ponderosus Spitzi
popeii, Popenaias popeii (Lea, 1857)
popeii regalis, Popenaias popeii regalis Haas, 1929 - syn of: Popenaias popeii (Lea, 1857)
popenoi, Unio popenoi Call, 1885 - syn of: Cyprogenia aberti (Conrad, 1850)
poppeana, Anodonta poppeana Servain, 1887 - syn of: Anodonta cygnea (Linnaeus, 1758)
porcifer, Anodon porcifer Gray, 1834 - syn of: Anodontites patagonica Lamarck, 1819
porphyreus, Unio porphyreus Lea, 1861 - syn of: Villosa umbrans (Lea, 1857)
portensis, Anodonta portensis Locard, 1899 - syn of: Anodonta cygnea (Linnaeus, 1758)
portulana, Anodonta portulana Kobelt, 1908 - syn of: Anodonta cygnea (Linnaeus, 1758)
possietica, Buldowskia possietica Bogatov & Starobogatov, 1996 - syn of: Anemina arcaeformis (Heude, 1877)
postellii, Unio postellii Lea, 1858 - syn of: Unio abbevillensis Lea, 1857
potamius, Unio potamius Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
potimia, Anodonta potimia Schröder, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
potinia, Anodonta potinia Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
powellii, Lampsilis powellii Lea, 1852
praeclara, Pseudanodonta praeclara Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
praelongus, Unio praelongus Barnes, 1823 - syn of: Ligumia recta (Lamarck, 1819)
praeposterus, Unio pictorum praeposterus Küster
prashadi, Trapezoideus prashadi Haas, 1922
prasina, Anodonta prasina Drouët, 1894 - syn of: Anodonta cygnea (Linnaeus, 1758)
prasinatus, Unio prasinatus Conrad, 1866 - syn of: Elliptio jayensis Lea, 1838
prattii, Unio prattii Lea, 1858 - syn of: Villosa lienosa (Conrad, 1834)
prelonga, Anodonta prelonga Rafinesque, 1832 - syn of: Hemistena lata Rafinesque, 1820
pressirostris, Unio pressirostris Von Martens, 1900 - syn of: Rectidens sumatrensis (Dunker, 1852)
primorjensis, Cristariopsis primorjensis Bogatov & Zatrawkin, 1988 - syn of: Sinanodonta woodiana (Lea, 1834)
probavaricus, Unio probavaricus Haas, 1911 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
proboscidalis, Anodonta proboscidalis Zieg, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
proclinatus, Simonaias proclinatus Von Martens, 1900 - syn of: Nephronaias scamnata (Morelet, 1849)
producta, Elliptio producta Conrad, 1836
productior, Unio productior Lea, 1852 - syn of: Elongaria orientalis (Lea, 1840)
productus, Unio productus Mousson, 1849 - syn of: Elongaria orientalis (Lea, 1840)
proechistus, Unio pictorum proechistus Bourguignat
profugus, Unio profugus Gould, 1850 - syn of: Alathyria profuga (Gould, 1850)
profunda, Psorula profunda (Simpson, 1914)
prolongata, Anodonta prolongata Zieg, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
prolongatus, Unio prolongatus Drouët, 1894 - syn of: Rectidens lingulatus (Drouët & Chaper, 1892)
propesulcatus, Unio propesulcatus De Gregorio, 1914 - syn of: Epioblasma obliquata (Rafinesque, 1820)
propeverutus, Unio propeverutus De Gregorio, 1914 - syn of: Elliptio dilatata Rafinesque, 1820
propinqua, Epioblasma propinqua (Lea, 1857)
proprius, Unio proprius Lea, 1865 - syn of: Villosa umbrans (Lea, 1857)
prosacrus, Unio prosacrus Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
protensus, Unio protensus Lea, 1865 - syn of: Unio abbevillensis Lea, 1857
protovittatus, Unio protovittatus Hale & Tindale, 1930 - syn of: Velesunio ambiguus (Philippi, 1847)
protractus, Unio protractus Lindholm, 1932 - syn of: Unio pictorum (Linnaeus, 1758)
proximus, Unio proximus Lea, 1852 - syn of: Villosa lienosa (Conrad, 1834)
pruinosus, Unio pruinosus Schmidt, 1840 - syn of: Unio crassus Philipsson, 1788
prunoides, Unio prunoides Lea, 1868 - syn of: Rhipidodonta funebralis (Lea, 1834)
prusii, Unio prusii Bourguignat, 1856 - syn of: Unio crassus Philipsson, 1788
psammactinus, Unio psammactinus Ihering, 1893 - syn of: Diplodon expansus (Küster, 1853)
psammactinus, Unio psammactinus Philippi, 1848 - syn of: Diplodon granosus (Bruguière, 1792)
psammaticus, Unio psammaticus Lea, 1852 - syn of: Diplodon granosus (Bruguière, 1792)
psammita, Anodonta psammita Bourguignat, 1862 - syn of: Anodonta cygnea (Linnaeus, 1758)
pseudocrassus, Unio pseudocrassus Haas, 1909 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
pseudodopsis, Anodonta pseudodopsis Locard, 1883
pseudolitoralis, Unio pseudolitoralis Clessin, 1884 - syn of: Unio crassus Philipsson, 1788
psoricus, Unio psoricus Morelet, 1851 - syn of: Psoronaias semigranosa (Busch, 1845)
psoricus, Unio psoricus Von Martens, 1900 - syn of: Psoronaias martensi Frierson, 1927
puberula, Anodonta puberula Gould, 1852 - syn of: Anodontites crispata (Bruguière, 1792)
pudicus, Unio pudicus Lea, 1860 - syn of: Fusconaia barnesiana (Lea, 1829)
puelchana, Anodontes puelchana D'Orbigny, 1835 - syn of: Anodontites trigona (Spix & Wagner, 1827)
puerorum, Anodon puerorum Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
pugio, Oxynaia pugio (Benson, 1862)
pulchella, Anodonta pulchella Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
pulchella, Anodonta pulchella Heude, 1881 - syn of: Sinanodonta woodiana (Lea, 1834)
pulcher, Trapezoideus pulcher Haas, 1952 - syn of: Trapezoideus exolescens (Gould, 1843)
pulcher, Unio pulcher Tapparone-Canefri, 1889 - syn of: Lamellidens generosus (Gould, 1847)
pulcher lamellatiformis, Unio pulcher lamellatiformis Tapparone-Canefri, 1889 - syn of: Lamellidens generosus (Gould, 1847)
pulcher ponderosulus, Unio pulcher ponderosulus Tapparone-Canefri, 1889 - syn of: Lamellidens lamellatus (Lea, 1838)
pulchra, Amuranodonta pulchra Bogatov & Starobogatov, 1996 - syn of: Anemina arcaeformis (Heude, 1877)
pullata, Elliptio pullata (Lea, 1856)
pullatus majusculus, Unio pullatus majusculus De Gregorio, 1914 - syn of: Unio abbevillensis Lea, 1857
pullus, Toxolasma pullus Conrad, 1838
pulvinulus, Unio pulvinulus Lea, 1845 - syn of: Pleurobema rubellum Conrad, 1834
pumila, Anodon pumila Heude, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
pumilia, Anodonta pumilia Haas, 1969 - syn of: Sinanodonta woodiana (Lea, 1834)
pumilus, Unio pumilus Lea, 1838 - syn of: Fusconaia masoni (Conrad, 1834)
purpurascens, Unio purpurascens Lamarck, 1819 - syn of: Unio abbevillensis Lea, 1857
purpurascens, Anodon purpurascens Swainson, 1823 - syn of: Leptodea leptodon (Rafinesque, 1820)
purpuratus, Potamilus purpuratus Lamarck, 1819
purpurea, Simpsonella purpurea (Valenciennes, 1821)
purpurella, Elliptio purpurella (Lea, 1857)
purpureus, Unio purpureus Say, 1817 - syn of: Unio abbevillensis Lea, 1857
purpuriata, Disconaias purpuriata (Say, 1831)
purus, Unio purus Lea, 1858 - syn of: Unio abbevillensis Lea, 1857
pusillus, Unio pusillus Lea, 1840 - syn of: Elliptio congaraea (Lea, 1831)
pustulosa, Amphinaias pustulosa (Lea, 1831)
pustulosa mortoni, Amphinaias pustulosa mortoni (Conrad, 1836)
pygmaeum, Anodonta pygmaeum Spix, 1827 - syn of: Mycetopoda siliquosa (Spix, 1827)
pygmaeus, Unio pygmaeus Lea, 1852 - syn of: Lasmigona subviridis (Conrad, 1835)
pyramidatus, Unio pyramidatus Lea, 1831 - syn of: Pleurobema rubrum Rafinesque, 1820
pyriforme, Pleurobema pyriforme Lea, 1857
qingyuani, Sinanodonta qingyuani He & Zhuang, 2013
quadrangulata, Anodonta quadrangulata Servain, 1888 - syn of: Anodonta cygnea (Linnaeus, 1758)
quadrangulosus, Unio quadrangulosus Heude, 1881 - syn of: Lamprotula caveata (Heude, 1877)
quadrans, Unio quadrans Lea, 1860 - syn of: Diplodon fontainianus (D'Orbigny, 1835)
quadrata, Psorula quadrata (Simpson, 1914)
quadrata, Anodontoides quadrata McCoy † (FOSSIL)
quadratus, Unio quadratus Lea, 1859 - syn of: Elliptio fumata (Lea, 1857)
quadrilaterus, Unio quadrilaterus Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
quadriplicatus, Anodon quadriplicatus Sowerby, 1870 - syn of: Strophitus undulatus (Say, 1817)
quadrula, Quadrula quadrula Rafinesque, 1820
quadrula bullocki, Quadrula quadrula bullocki Baker, 1928 - syn of: Quadrula quadrula Rafinesque, 1820
quadrula contraryensis, Quadrula quadrula contraryensis Utterback, 1915 - syn of: Quadrula quadrula Rafinesque, 1820
quelleneci, Anodonta quelleneci Drouët, 1892 - syn of: Anodonta cygnea (Linnaeus, 1758)
quellenneci, Anodonta quellenneci Drouët, 1892 - syn of: Anodonta cygnea (Linnaeus, 1758)
rackianus, Unio rackianus Brusina, 1874 † (FOSSIL)
raddei, Eolymnium raddei Drouët, 1881 - syn of: Unio crassus Philipsson, 1788
raddei koutaisiana, Unio raddei koutaisiana Kobelt, 1886 - syn of: Unio crassus Philipsson, 1788
radiata, Lampsilis radiata (Gmelin, 1791)
radiata, Odatelia radiata Rafinesque, 1832 - syn of: Hemistena lata Rafinesque, 1820
radiata, Cristaria radiata Simpson, 1900
radiata conspicua, Lampsilis radiata conspicua Lea, 1872
radiata luteola, Lampsilis radiata luteola (Lamarck, 1819)
radiata paludosa, Anodonta radiata paludosa Mörch, 1863 - syn of: Anodonta cygnea (Linnaeus, 1758)
radiata siliquoidea, Lampsilis radiata siliquoidea Barnes, 1823
radiatus, Anodontoides radiatus (Conrad, 1834)
radiatus, Anodon radiatus Spix & Wagner, 1827 - syn of: Anodontites trapesialis (Lamarck, 1818)
radiosus, Unio radiosus Lea, 1871 - syn of: Fusconaia barnesiana (Lea, 1829)
radula, Unio radula Hanley, 1856 - syn of: Radiatula lima Simpson, 1900
radulosa, Discomya radulosa (Drouët & Chaper, 1892)
raeensis, Unio raeensis Lea, 1859 - syn of: Unio abbevillensis Lea, 1857
rafinesqueana, Lampsilis rafinesqueana Frierson, 1927
raimondoi, Anodonta raimondoi Bourguignat, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
rajahensis, Parreysia rajahensis (Lea, 1841)
raleighensis, Unio raleighensis Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
ranarum, Anodonta ranarum Morelet, 1845 - syn of: Anodonta cygnea (Linnaeus, 1758)
randabeli, Unio randabeli Bourguignat, 1886 - syn of: Coelatura horei (Smith, 1880)
randalli, Gonidea randalli (Trask, 1855)
randallii, Anodonta randallii Trask, 1855 - syn of: Gonidea angulata (Lea, 1838)
rangiana, Epioblasma torulosa rangiana Lea
rarisulcata, Unio rarisulcata Lamarck, 1819 - syn of: Unio abbevillensis Lea, 1857
rathymus, Potomida rathymus Bourguignat, 1882 - syn of: Potomida littoralis (Cuvier, 1798)
ratidota, Coelatura ratidota (Charmes, 1885)
ratus, Unio ratus Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
raveneli, Elliptio raveneli Conrad, 1834
raveneliana, Alasmidonta raveneliana Lea, 1834
ravistella, Nephronaias ravistella (Morelet, 1849)
ravoisieri, Unio ravoisieri Deshayes, 1847
rayi, Unio rayi Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
raymondoi, Anodonta raymondoi Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
rayopsis, Anodonta rayopsis Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
recta, Ligumia recta (Lamarck, 1819)
rectoides, Unio rectoides Whitfield, 1885 - syn of: Ligumia recta (Lamarck, 1819)
rectus, Unio rectus Locard, 1890 - syn of: Unio pictorum (Linnaeus, 1758)
recurvirostris, Anodonta recurvirostris Kobelt, 1892 - syn of: Anodonta cygnea (Linnaeus, 1758)
redactus, Unio redactus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
reeveiana, Lampsilis reeveiana (Lea, 1852)
reeviana, Lampsilis reeviana Lea, 1852 - syn of: Lampsilis reeveiana (Lea, 1852)
reflexa, Obliquaria reflexa Rafinesque, 1820
refulgens, Amphinaias refulgens (Lea, 1868)
regularis, Unio regularis Fric, 1869 † (FOSSIL)
reinianus, Inversiunio reinianus (Kobelt, 1879)
reneana, Anodonta reneana Péchaud, 1884 - syn of: Anodonta cygnea (Linnaeus, 1758)
reniformis, Unio reniformis Rossmässler, 1836 - syn of: Unio crassus Philipsson, 1788
renoufi, Anodonta renoufi Servain, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
renzini, Anodonta renzini Bogatov & Zatrawkin, 1988 - syn of: Sinanodonta woodiana (Lea, 1834)
requieni, Unio requieni Haas, 1917 - syn of: Unio mancus penchinatianus Bourguignat, 1865
requienii, Unio requienii Michaud, 1831 - syn of: Unio mancus Lamarck, 1819
requienii taginus, Unio requienii taginus Kobelt, 1903 - syn of: Unio abrantesianus Locard, 1899
resima, Anodonta resima Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
ressmanni, Anodonta ressmanni Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
resupinatus, Pseudodon resupinatus Von Martens, 1902
retiaria, Acuticosta retiaria (Heude, 1883)
reticulatum, Reticulatus reticulatum (Phillips) † (FOSSIL)
reticulatus, Reticulatus reticulatus (Simpson, 1900)
reticulatus, Anodon reticulatus Sowerby, 1867 - syn of: Anodontites crispata (Bruguière, 1792)
retteri, Anodonta retteri Drouët, 1899 - syn of: Anodonta cyrea Drouët, 1881
retusa, Anodonta retusa Heude, 1884 - syn of: Sinanodonta woodiana (Lea, 1834)
retusa, Obovaria retusa Lamarck, 1819
retusa lens, Obovaria retusa lens Lea
retusus, Unio retusus Say, 1834 - syn of: Theliderma stapes (Lea, 1831)
retziana, Anodonta retziana Douët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
rhenanus, Unio rhenanus Kobelt, 1886 - syn of: Unio tumidus Retzius, 1788
rhodani, Anodonta rhodani Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
rhodanica, Anodonta rhodanica Locard, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
rhombeus, Unio rhombeus Spix & Wagner, 1827 - syn of: Rhipidodonta rhombea (Spix & Wagner, 1827)
rhombica, Alasmodon rhombica Anthony, 1865 - syn of: Strophitus undulatus (Say, 1817)
rhomboideus, Unio rhomboideus Lamarck, 1822 - syn of: Potomida littoralis (Cuvier, 1798)
rhomboideus minor, Unio rhomboideus minor Pallary, 1921 - syn of: Potomida littoralis (Cuvier, 1798)
rhombula, Unio rhombula Lamarck, 1819 - syn of: Unio abbevillensis Lea, 1857
rhuacoica, Unio rhuacoica D'Orbigny, 1835 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
rhuacoicus, Unio rhuacoicus Modell, 1950 - syn of: Rhipidodonta burroughiana (Lea, 1834)
rhuaconicus, Unio rhuaconicus Küster, 1856 - syn of: Rhipidodonta burroughiana (Lea, 1834)
rhynchetianus, Unio rhynchetianus Letourneux, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
rhynchonella, Grandidieria burtoni rhynchonella Bourguignat
rhynchonella, Anodonta rhynchonella Schröder, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
rhysopygus, Potomida rhysopygus Drouët, 1894 - syn of: Potomida littoralis (Cuvier, 1798)
ribeiroiana, Anodonta ribeiroiana Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
richthofeni, Anodonta richthofeni Neumayr, 1899 - syn of: Sinanodonta woodiana (Lea, 1834)
riddellii, Pleurobema riddellii Lea, 1861
ridibundus, Unio ridibundus Say, 1829 - syn of: Epioblasma obliquata (Rafinesque, 1820)
rigidus, Unio rigidus Wood, 1828 - syn of: Unio abbevillensis Lea, 1857
rimosus, Lemiox rimosus Rafinesque, 1831
riograndensis, Anodonta riograndensis Ihering, 1890 - syn of: Anodontites trapesialis (Lamarck, 1818)
rioplatensis, Anodon rioplatensis Sowerby, 1870 - syn of: Anodontites trapesialis (Lamarck, 1818)
riparia, Unio riparia Pfeiffer, 1821 - syn of: Unio crassus Philipsson, 1788
rivularis, Solenaia rivularis (Heude, 1877)
rivularis, Anodon rivularis Heude, 1877 - syn of: Anemina arcaeformis (Heude, 1877)
rivularis, Unio rivularis Moquin-Tandon, 1855 - syn of: Unio crassus Philipsson, 1788
roanokensis, Elliptio roanokensis Lea, 1838
roanokoides, Unio roanokoides Lea, 1868 - syn of: Elliptio roanokensis Lea, 1838
roblinica, Anodonta roblinica Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
robsoni, Parreysia robsoni Frierson, 1927 - syn of: Parreysia favidens (Benson, 1862)
robusta, Alasmidonta robusta Clarke, 1981
rochechouarti, Lamprotula rochechouarti (Heude, 1875)
rochechourti, Lamprotula rochechourti (Heude, 1875) - syn of: Lamprotula rochechouarti (Heude, 1875)
rohani, Nodularia rohani Germain, 1925 - syn of: Coelatura kunenensis (Mousson, 1887)
rohrmanni, Unio rohrmanni Kobelt, 1880 - syn of: Unio tumidus Retzius, 1788
romana, Anodonta romana Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
rosai, Anodonta rosai Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
rosari, Anodonta rosari Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
rosea, Anodonta rosea Heude, 1881 - syn of: Sinanodonta woodiana (Lea, 1834)
rossmaessleri, Pseudanodonta rossmaessleri Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
rossmaessleri, Pseudanodonta rossmaessleri Zhadin, 1952 - syn of: Pseudanodonta elongata (Holandre, 1836)
rossmaessleri euxina, Pseudanodonta rossmaessleri euxina Kobelt & Haas, 1911 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
rostraeformis, Unio rostraeformis Lea, 1856 - syn of: Elliptio lanceolata Lea, 1827
rostrata, Grandidieria burtoni rostrata Bourguignat
rostrata, Anodonta rostrata Rossmässler, 1836 - syn of: Anodonta anatina (Linnaeus, 1758)
rostrata major, Anodonta rostrata major Brusina, 1866 - syn of: Anodonta cygnea (Linnaeus, 1758)
rostratellus, Unio rostratellus Bourguignat, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
rostratus, Unio pictorum rostratus Lamarck
rostratus gentilis, Unio rostratus gentilis Hesse, 1911 - syn of: Unio pictorum (Linnaeus, 1758)
rostrum, Unio rostrum Lea, 1862 - syn of: Unio abbevillensis Lea, 1857
roswellensis, Unio roswellensis Lea, 1858 - syn of: Elliptio pullata (Lea, 1856)
rothi komarowi, Unio rothi komarowi Böttger, 1880 - syn of: Potomida littoralis (Cuvier, 1798)
rothomagensis, Unio rothomagensis Locard, 1890 - syn of: Unio tumidus Retzius, 1788
rothschildi, Coelatura rothschildi (Neuville & Anthony, 1906)
rotula, Coelatura rotula Pilsbry & Bequaert, 1927
rotulata, Fusconaia rotulata (Wright, 1899)
rotundata, Glebula rotundata (Lamarck, 1819)
rotundata, Grandidieria burtoni rotundata Bourguignat
rotundatus, Potomida rotundatus Mauduyt, 1839 - syn of: Potomida littoralis (Cuvier, 1798)
rotundatus, Anodon rotundatus Swainson, 1841 - syn of: Sinanodonta woodiana (Lea, 1834)
rotundovata, Anodonta rotundovata Trask, 1855 - syn of: Anodonta nuttalliana (Lea, 1838)
rotundum, Anodonta rotundum Spix, 1827 - syn of: Anodontites trapezea (Spix & Wagner, 1827)
rotundus, Unio rotundus Spix & Wagner, 1827 - syn of: Rhipidodonta rhombea (Spix & Wagner, 1827)
rousii, Unio rousii Dupuy, 1849 - syn of: Unio mancus Lamarck, 1819
rovirosai, Potamilus rovirosai (Pilsbry, 1900)
rowellii, Nephronaias rowellii (Lea, 1859)
rubella, Anodonta rubella Heude, 1881 - syn of: Sinanodonta woodiana (Lea, 1834)
rubellinus, Unio rubellinus Lea, 1857 - syn of: Medionidus acutissimus (Lea, 1831)
rubellum, Pleurobema rubellum Conrad, 1834
rubens, Anodonta rubens Lamarck, 1819 - syn of: Chambardia rubens (Lamarck, 1819)
rubens, Unio rubens Menke, 1828 - syn of: Unio crassus Philipsson, 1788
rubicunda, Martensnaias rubicunda (Von Martens, 1900)
rubicunda, Anodonta rubicunda Doering, 1875 - syn of: Anodontites trapezea (Spix & Wagner, 1827)
rubicunda, Anodonta rubicunda Lea, 1860 - syn of: Anodontites trapezea (Spix & Wagner, 1827)
rubidula, Quadrula rubidula Frierson, 1905 - syn of: Fusconaia cerina (Conrad, 1838)
rubra, Anodon rubra Swainson, 1840 - syn of: Chambardia rubens (Lamarck, 1819)
rubrum, Pleurobema rubrum Rafinesque, 1820
rudis, Psorula rudis (Simpson, 1900)
rudis, Unio rudis Doering, 1875 - syn of: Diplodon delodontus (Lamarck, 1819)
rudus, Unio rudus Lea, 1859 - syn of: Diplodon delodontus (Lamarck, 1819)
ruellani, Unio ruellani Bourguignat, 1883 - syn of: Coelatura hauttecoeuri (Bourguignat, 1883)
rufescens, Cuneopsis rufescens (Heude)
rufofuscus, Unio rufofuscus Lea, 1865 - syn of: Rhipidodonta grata (Lea, 1860)
rufusculus, Unio rufusculus Lea, 1852 - syn of: Elliptio congaraea (Lea, 1831)
rugatus, Unio rugatus Hutton, 1882 - syn of: Echyridella menziesii (Gray, 1843)
rugatus, Unio rugatus Menke, 1828 - syn of: Unio crassus Philipsson, 1788
rugifera, Anodonta rugifera Dunker, 1858 - syn of: Aspatharia rugifera (Dunker, 1858)
rugosa, Parreysia rugosa (Gmelin, 1791)
rugosa, Unio rugosa Poiret, 1801 - syn of: Pseudunio auricularius (Spengler, 1793)
rugososulcata, Pachynaias rugososulcata (Lea, 1866)
rugosus, Unio rugosus Barnes, 1823 - syn of: Quadrula quadrula Rafinesque, 1820
rugosus, Unio rugosus Chenu, 1862 - syn of: Theliderma cylindrica (Say, 1817)
rugosus, Anodon rugosus Swainson, 1822 - syn of: Strophitus undulatus (Say, 1817)
rugosus lacustris, Strophitus rugosus lacustris Baker, 1928 - syn of: Strophitus undulatus (Say, 1817)
rugosus pepinensis, Strophitus rugosus pepinensis Baker, 1928 - syn of: Strophitus undulatus (Say, 1817)
rugosus winnebagoensis, Strophitus rugosus winnebagoensis Baker, 1928 - syn of: Strophitus undulatus (Say, 1817)
rugulosa, Nephronaias rugulosa (Charpentier, 1856)
rumanica, Anodonta rumanica Bourguignat, 1881 - syn of: Anodonta anatina (Linnaeus, 1758)
rumphiana, Quadrula rumphiana Lea, 1852
rustica, Contradens contradens rustica Lea
rusticoides, Contradens contradens rusticoides Brandt
rusticus, Unio rusticus Sowerby, 1868 - syn of: Barynaias plexus (Conrad, 1838)
rutersvillensis, Unio rutersvillensis Lea, 1859 - syn of: Ligumia subrostrata (Say, 1831)
ruvida, Anodonta ruvida Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
ruvidella, Anodonta ruvidella Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
rynchonella, Anodonta rynchonella Servain, 1888 - syn of: Anodonta cygnea (Linnaeus, 1758)
sabulosus, Unio sabulosus Haas, 1910 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
saccatus, Unio saccatus Küster, 1862 - syn of: Epioblasma florentina (Lea, 1857)
saccatus, Unio saccatus Rossmässler, 1854 - syn of: Unio tumidus Retzius, 1788
saccellus, Unio saccellus Drouët & Chaper, 1892 - syn of: Contradens contradens (Lea, 1838)
sacculus, Unio sacculus Reeve, 1864 - syn of: Epioblasma florentina (Lea, 1857)
sadoicus, Unio sadoicus Da Silva e Castro, 1885 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
sageri, Unio sageri Conrad, 1836 - syn of: Ligumia recta (Lamarck, 1819)
sagittarius, Ensidens sagittarius (Lea, 1856)
sagittiformis, Unio sagittiformis Lea, 1852 - syn of: Elliptio lanceolata Lea, 1827
sagrinatus, Unio sagrinatus Sowerby, 1868 - syn of: Pachynaias cyrenoides (Philippi, 1847)
saintsimoniana, Anodonta saintsimoniana Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
sajensis, Nephronaias sajensis (Frierson, 1927)
sakhalinensis, Unio sakhalinensis Bogatov, 2001 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
saladoensis, Cyrtonaias saladoensis (Lea, 1860)
salamboana, Unio salamboana Pallary, 1929 - syn of: Potomida littoralis (Cuvier, 1798)
salaputium, Lamprotula salaputium (Von Martens, 1902)
salebrosus, Unio salebrosus Lea, 1859 - syn of: Elliptio fumata (Lea, 1857)
salinarum, Psorula salinarum (Haas, 1929)
salinasensis, Disconaias salinasensis Simpson, 1908 - syn of: Disconaias fimbriata (Frierson, 1907)
sallei, Barynaias sallei (Crosse & Fischer, 1893)
salmonea, Anodonta salmonea Sowerby, 1867 - syn of: Anodonta grandis Say, 1829
salmonia, Anodonta salmonia Lea, 1838 - syn of: Anodonta grandis Say, 1829
salvadori, Potomida salvadori Westerlund, 1892 - syn of: Potomida littoralis umbonata Rossmässler, 1844
salwenianus, Pseudodon salwenianus Gould, 1844
samarkandensis, Anodonta samarkandensis Kobelt, 1913 - syn of: Anodonta cyrea Drouët, 1881
sampsonii, Epioblasma sampsonii Lea, 1861
sanctapaulae, Unio sanctapaulae Simpson, 1914 - syn of: Diplodon delodontus (Lamarck, 1819)
sanctipauli, Unio sanctipauli Bonetto, 1964 - syn of: Diplodon expansus (Küster, 1853)
sanctorumjohanium, Elliptio sanctorumjohanium Wright, 1933 - syn of: Elliptio jayensis Lea, 1838
santeensis, Unio santeensis Lea, 1871 - syn of: Unio abbevillensis Lea, 1857
sapotalensis, Actinonaias sapotalensis (Lea, 1841)
sapperi, Cyrtonaias sapperi (Ihering, 1901)
satillaensis, Unio satillaensis Lea, 1858 - syn of: Elliptio downiei Lea, 1858
satura, Lampsilis satura Lea, 1852
saulcyi, Leguminaia saulcyi (Bourguignat, 1852)
savannahensis, Unio savannahensis Lea, 1857 - syn of: Unio abbevillensis Lea, 1857
savensis, Anodonta savensis Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
savica, Anodonta savica Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
saxeus, Unio saxeus Conrad, 1838 - syn of: Villosa lienosa (Conrad, 1834)
scalabisianus, Unio scalabisianus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
scalenia, Scalenaria scalenia Rafinesque, 1820 - syn of: Pleurobema clava Lamarck, 1819
scamnata, Nephronaias scamnata (Morelet, 1849)
scaphidium, Anodonta scaphidium Paetel, 1890 - syn of: Sinanodonta woodiana (Lea, 1834)
scaphydium, Anodon scaphydium Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
scapulosa, Anodonta scapulosa Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
scheibeneri, Ctenodesma scheibeneri Haas, 1927
schlegeli, Hyriopsis schlegeli (Von Martens, 1861)
schoedei, Unio schoedei (Haas, 1930)
schombergianus, Ptychorhynchus schombergianus Heude, 1885 - syn of: Ptychorhynchus schomburgianus (Heude, 1885)
schomburgianus, Ptychorhynchus schomburgianus (Heude, 1885)
schomburgianus, Anodon schomburgianus Sowerby, 1870 - syn of: Anodontites carinata (Dunker, 1858)
schomburgki, Alasmidonta schomburgki Sowerby, 1868 - syn of: Monocondylaea paraguayana D'Orbigny, 1835
schousboei, Unio schousboei Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
schrencki, Anodonta schrencki Moskvicheva, 1973 - syn of: Sinanodonta woodiana (Lea, 1834)
schrencki, Unio schrencki Westerlund, 1897 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
schrenkianus, Unio schrenkianus Clessin, 1880 - syn of: Unio pictorum rostratus Lamarck, 1819
schrenkii, Unio schrenkii Lea, 1870 - syn of: Sinanodonta woodiana (Lea, 1834)
schroederi, Unio schroederi Bourguignat, 1885 - syn of: Unio tumidus Retzius, 1788
schroederi, Anodonta schroederi Schröder, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
schroeteriana, Anodonta schroeteriana Lea, 1852 - syn of: Anodontites elongata (Swainson, 1823)
schwarzii, Unio schwarzii Kobelt, 1915 - syn of: Unio terminalis Bourguignat, 1852
schwerzenbachi, Unio schwerzenbachi Bourguignat, 1856 - syn of: Unio crassus Philipsson, 1788
scobinatus, Unio scobinatus Lea, 1856 - syn of: Scabies crispata (Gould, 1843)
scotinus, Unio scotinus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
scripta, Aculamprotula scripta (Heude, 1875)
scriptus, Anodonta scriptus Sowerby, 0 - syn of: Leila blainvilliana (Lea, 1834)
scrobicularioides, Unio scrobicularioides Fric, 1869 † (FOSSIL)
scrupea, Pseudanodonta scrupea Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
sculptilis, Alasmodonta sculptilis Say, 1829 - syn of: Alasmidonta undulata (Say, 1817)
sculptus, Unio sculptus Deshayes, 1873 - syn of: Nodularia douglasiae (Gray, 1834)
scutulata, Delphinonaias scutulata (Morelet, 1849)
scutum, Lamellidens scutum (Sowerby, 1868)
scutum humilior, Unio scutum humilior Von Martens, 1899 - syn of: Lamellidens scutum (Sowerby, 1868)
sebastanae, Unio sebastanae Simpson, 1900 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
sebastiani, Unio sebastiani Haas, 1930 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
sebinensis, Anodonta sebinensis Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
secundus, Pseudodon secundus Heude, 1877
securiformis, Anodon securiformis Heude, 1877 - syn of: Sinanodonta woodiana (Lea, 1834)
securiformis, Anodontoides securiformis McCoy † (FOSSIL)
securis, Unio securis Deshayes, 1830 - syn of: Ellipsaria lineolata Rafinesque, 1820
securis, Unio securis Lea, 1829 - syn of: Ellipsaria lineolata Rafinesque, 1820
sedakovi, Anodonta sedakovi Siemaschko, 1847 - syn of: Anodonta anatina (Linnaeus, 1758)
seeuriformis, Anodonta seeuriformis Liu, 1979 - syn of: Sinanodonta woodiana (Lea, 1834)
seisanensis, Anodonta seisanensis Kobelt, 1911 - syn of: Anodonta anatina (Linnaeus, 1758)
selengensis, Anodonta selengensis Dybowski, 1913 - syn of: Anodonta cygnea (Linnaeus, 1758)
semialatus, Physunio semialatus (Deshayes & Jullien, 1874)
semigranosa, Psoronaias semigranosa (Busch, 1845)
semiplicatus, Unio semiplicatus Küster, 1862 - syn of: Medionidus acutissimus (Lea, 1831)
semirugatus, Unio semirugatus Chenu, 1858 - syn of: Parreysia corrugata (Müller, 1774)
semmelinki, Contradens semmelinki (Von Martens, 1891)
semmelinki fultoni, Contradens semmelinki fultoni Haas, 1930 - syn of: Contradens semmelinki (Von Martens, 1891)
sempervivens, Anodonta sempervivens Deshayes, 1875 - syn of: Pilsbryoconcha exilis (Lea, 1839)
seneauxi, Unio seneauxi Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
senegalensis, Anodonta senegalensis Lea, 1859 - syn of: Aspatharia dahomeyensis (Lea, 1859)
seomjinensis, Pronodularia seomjinensis Kondo, Yang & Choi, 2007
septentrionalis, Unio septentrionalis Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
sequanicus, Unio sequanicus Coutagne, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
serbica, Anodonta serbica Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
serpentina, Anodonta serpentina Clessin, 1876 - syn of: Anodontites patagonica Lamarck, 1819
servaini, Leguminaia servaini Bourguignat, 1883 - syn of: Microcondylaea compressa (Menke, 1830)
servainiana, Grandidieria burtoni servainiana Bourguignat
seurati, Limnium seurati Pallary, 1936 - syn of: Unio gibbus Spengler, 1793
sevillensis, Unio sevillensis Kobelt, 1887 - syn of: Unio abrantesianus Locard, 1899
shadini, Middendorffinaia shadini Moskvicheva & Starobogatov, 1973 - syn of: Inversidens pantoensis (Neumayr, 1899)
shadini deflexa, Anemina shadini deflexa Martynov & Chernyshev, 1992 - syn of: Anemina euscaphys (Heude, 1879)
shaefferiana, Anodonta shaefferiana Lea, 1852 - syn of: Strophitus undulatus (Say, 1817)
shanghaiensis, Unio shanghaiensis Lea, 1859 - syn of: Nodularia douglasiae (Gray, 1834)
shepardiana, Elliptio shepardiana Lea, 1834
shireensis, Unio shireensis Preston, 1910 - syn of: Coelatura mossambicensis (Von Martens, 1860)
showalteri, Pleurobema showalteri Lea, 1860 - syn of: Pleurobema hartmanianum (Lea, 1860)
showalterii, Anodonta showalterii Lea, 1860 - syn of: Anodontoides radiatus (Conrad, 1834)
shurtleffiana, Radiatula shurtleffiana (Lea, 1856)
shuttleworthi, Unio shuttleworthi Küster, 1856 - syn of: Velesunio moretonicus (Reeve, 1865)
shuttleworthii, Unio shuttleworthii Lea, 1856 - syn of: Alathyria pertexta Iredale, 1934
siamensis, Modellnaia siamensis Brandt, 1974
siamensis, Unio siamensis Lea, 1866 - syn of: Trapezoideus exolescens (Gould, 1843)
sichotealinica, Amuranodonta sichotealinica Korniushin, 1998 - syn of: Sinanodonta woodiana (Lea, 1834)
sichuanica, Acuticosta sichuanica Zeng & Liu, 1989
sieversi, Anodonta sieversi Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
signata, Actinonaias signata (Pilsbry, 1910)
sihotealinica, Amuranodonta sihotealinica Zatrawkin & Starobogatov, 1984 - syn of: Sinanodonta woodiana (Lea, 1834)
sikkimensis, Parreysia sikkimensis Lea, 1859
siliqua, Anodonta siliqua Küster, 1853 - syn of: Pseudanodonta elongata (Holandre, 1836)
siliquiformis, Unio siliquiformis Locard, 1889 - syn of: Unio pictorum (Linnaeus, 1758)
siliquoidea, Lampsilis radiata siliquoidea Barnes
siliquoidea, Lampsilis siliquoidea Barnes, 1823 - syn of: Lampsilis radiata siliquoidea Barnes, 1823
silvai, Anodonta silvai Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
silvai, Unio silvai Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
similaris, Lamprotula similaris (Simpson, 1900)
simoesi, Unio simoesi Da Silva e Castro, 1885 - syn of: Unio abrantesianus Locard, 1899
simoesi, Anodonta simoesi Locard, 1899 - syn of: Anodonta cygnea (Linnaeus, 1758)
simplex, Unio simplex Lea, 1845 - syn of: Ptychobranchus greenii (Conrad, 1834)
simpsoni, Unio simpsoni Wright, 1888 - syn of: Elliptio jayensis Lea, 1838
simpsoniana, Anodonta grandis simpsoniana Lea
simpsonianus, Medionidus simpsonianus Walker, 1905
simpularius, Unio simpularius Heude, 1884 - syn of: Ptychorhynchus murinum (Heude, 1883)
simulans, Anodonta simulans Drouët, 1895 - syn of: Anodonta cygnea (Linnaeus, 1758)
sinanodontoides, Kunashiria sinanodontoides Bogatov & al., 1999 - syn of: Sinanodonta woodiana (Lea, 1834)
sinensis, Unionelloides sinensis (Gu, 1976) † (FOSSIL)
singularis, Grandidieria burtoni singularis Bourguignat
singularis, Unio singularis Wright, 1899 - syn of: Elliptio pullata (Lea, 1856)
sintoxia, Pleurobema sintoxia Rafinesque, 1820
sinuata, Unio sinuata Lamarck, 1819 - syn of: Pseudunio auricularius (Spengler, 1793)
sinuatus compressus, Unio sinuatus compressus Moquin-Tandon, 1855 - syn of: Pseudunio auricularius (Spengler, 1793)
sinuolata, Unio sinuolata Küster, 1833 - syn of: Unio crassus Philipsson, 1788
sinuosa, Anodonta sinuosa Clessin, 1873 - syn of: Anodontites patagonica Lamarck, 1819
sinuosa, Anodonta sinuosa Mauduyt, 1839 - syn of: Anodonta cygnea (Linnaeus, 1758)
sinuosa, Unio sinuosa Swainson, 1840 - syn of: Pseudunio auricularius (Spengler, 1793)
sirionos, Anodontes sirionos D'Orbigny, 1835 - syn of: Anodontites patagonica Lamarck, 1819
sitaensis, Amurbuldowskia sitaensis Bogatov & Starobogatov, 1996 - syn of: Anemina arcaeformis (Heude, 1877)
sloatianus, Elliptoideus sloatianus (Lea, 1840)
smaragdina, Craspedodonta smaragdina Anton, 1838 - syn of: Cristaria plicata (Leach, 1815)
smaragdites, Parreysia smaragdites Benson, 1862
smithi, Grandidieria burtoni smithi Bourguignat
smithii, Unio smithii Griffith & Pidgeon, 1833 - syn of: Diplodon chilensis (Gray, 1852)
sobriewskii, Unio sobriewskii Rosen, 1925 - syn of: Unio crassus Philipsson, 1788
socardianus, Unio socardianus Bourguignat, 1882 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
sogdiana, Anodonta sogdiana Kobelt, 1896 - syn of: Anodonta cyrea Drouët, 1881
solandrei, Unio solandrei Sowerby, 1826 † (FOSSIL)
soledadensis, Unio soledadensis Crosse & Fischer, 1893 - syn of: Nephronaias aztecorum (Philippi, 1847)
soleilleti, Unio soleilleti Bourguignat, 1885 - syn of: Unio mancus Lamarck, 1819
soleniformis, Solenaia soleniformis (Benson, 1836)
soleniformis, Unio soleniformis Lea, 1831 - syn of: Margaritifera monodonta (Say, 1829)
solenoides, Eurynia solenoides Rafinesque, 1820 - syn of: Theliderma cylindrica (Say, 1817)
solenoides cylindrica, Eurynia solenoides cylindrica Rafinesque, 1820 - syn of: Theliderma cylindrica (Say, 1817)
solenoides interrupta, Eurynia solenoides interrupta Rafinesque, 1820 - syn of: Theliderma cylindrica (Say, 1817)
solenoides nodosa, Eurynia solenoides nodosa Rafinesque, 1820 - syn of: Theliderma cylindrica (Say, 1817)
soliciana, Unio soliciana Bonetto, 1965 - syn of: Rhipidodonta variabilis (Maton, 1811)
solida, Anodonta solida Küster, 1853 - syn of: Anodontites patagonica Lamarck, 1819
solida, Unio solida Turton, 1822 - syn of: Unio tumidus Retzius, 1788
solidula, Anodonta solidula Deville & Hupé, 1850 - syn of: Anodontites elongata (Swainson, 1823)
solidum, Pleurobema solidum Lea, 1838 - syn of: Pleurobema sintoxia Rafinesque, 1820
solidus, Pseudodon solidus Haas, 1911
solisiana, Unio solisiana D'Orbigny, 1835 - syn of: Rhipidodonta variabilis (Maton, 1811)
solsiana, Unio solsiana Sowerby, 1866 - syn of: Rhipidodonta variabilis (Maton, 1811)
somboriensis, Harmandia somboriensis Rochebrune, 1882
somboriensis castelneaui, Harmandia somboriensis castelneaui Rochebrune, 1904
somersii, Anodonta somersii Call, 1880 - syn of: Anodonta grandis Say, 1829
sondermannii, Anodonta sondermannii Küster, 1842 - syn of: Anodonta cygnea (Linnaeus, 1758)
songkramensis, Scabies songkramensis Kongim & Panha, 2015
sordida, Zairia sordida Rochebrune, 1886 - syn of: Coelatura gabonensis (Küster, 1862)
sordidus, Unio sordidus Lea, 1852 - syn of: Elliptio congaraea (Lea, 1831)
sorensianum, Colletopterum sorensianum Dybowski, 1913 - syn of: Anodonta anatina (Linnaeus, 1758)
sorica, Anodonta sorica Dybowski, 1913 - syn of: Anodonta cygnea (Linnaeus, 1758)
sorini, Anodonta sorini Heude, 1881 - syn of: Sinanodonta woodiana (Lea, 1834)
sousanus, Unio sousanus Locard, 1889 - syn of: Unio abrantesianus Locard, 1899
sowerbianus, Unio sowerbianus Lea, 1834 - syn of: Dysnomia haysiana (Lea, 1834)
spadiceus, Unio spadiceus Lea, 1857 - syn of: Unio abbevillensis Lea, 1857
sparsa, Theliderma sparsa (Lea, 1841)
spathulatus, Unio spathulatus Küster, 1862 - syn of: Venustaconcha ellipsiformis (Conrad, 1836)
spatiosa, Cristaria plicata spatiosa Clessin
spatulatus, Unio spatulatus Lea, 1845 - syn of: Venustaconcha ellipsiformis (Conrad, 1836)
specialis, Anodonta specialis Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
speciosus, Unio speciosus Lea, 1862 - syn of: Quadrula apiculata Say, 1829
sphaericus, Potomida sphaericus Bourguignat, 1893 - syn of: Potomida littoralis (Cuvier, 1798)
spheniopsis, Pachynaias spheniopsis (Morelet, 1849)
sphenoides, Unio sphenoides Westerlund, 1892 - syn of: Unio abrantesianus Locard, 1899
sphenorhyncha, Nephronaias sphenorhyncha (Crosse & Fischer, 1893)
spinosa, Elliptio spinosa Lea, 1836
spinosus, Schistodesmus spinosus Simpson, 1900
spissus, Unio spissus Lea, 1859 - syn of: Elliptio downiei Lea, 1858
splendens, Anodonta splendens De Cristofori & Jan, 1832 - syn of: Chambardia rubens (Lamarck, 1819)
splendida, Lampsilis splendida Lea, 1838
spreta, Anodonta spreta Zieg, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
squameus, Unio squameus Lea, 1862 - syn of: Unio abbevillensis Lea, 1857
squammosus, Acuticosta chinensis squammosus Heude
squamosus, Microcondylus squamosus Drouët, 1879 - syn of: Microcondylaea compressa (Menke, 1830)
stabilei, Anodonta stabilei Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
stabilis, Pleurobema stabilis (Lea, 1861)
stagnalis, Anodonta stagnalis Gmelin, 1791 - syn of: Anodonta cygnea (Linnaeus, 1758)
stagnorum, Coelatura stagnorum (Dautzenberg, 1890)
stagnorum bomae, Coelatura stagnorum bomae Pilsbry & Bequaert, 1927 - syn of: Coelatura stagnorum (Dautzenberg, 1890)
stapes, Theliderma stapes (Lea, 1831)
stappersi, Pseudospatha stappersi Pilsbry & Bequaert, 1927 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
starobogatovi, Amuranodonta starobogatovi Moskvicheva, 1973 - syn of: Anemina arcaeformis (Heude, 1877)
stata, Anodonta stata Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
stataria, Anodonta stataria Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
stegaria, Cyprogenia stegaria (Rafinesque, 1820)
stegaria, Obovaria stegaria Rafinesque, 1820 - syn of: Theliderma stapes (Lea, 1831)
steinstansana, Elliptio steinstansana Johnson & Clarke, 1983
stevenianus, Unio stevenianus Krynicki, 1837 - syn of: Unio crassus Philipsson, 1788
stewardsonii, Epioblasma stewardsonii Lea, 1852
stewardsonii stewensoni, Unio stewardsonii stewensoni De Gregorio, 1914 - syn of: Epioblasma obliquata (Rafinesque, 1820)
stewartiana, Anodonta stewartiana Lea, 1834 - syn of: Anodonta grandis Say, 1829
stolata, Prohyriopsis stolata (Von Martens, 1900)
stolli, Crenodonta stolli Von Martens, 1900 - syn of: Magnonaias nickliniana (Lea, 1834)
stonensis, Unio stonensis Lea, 1840 - syn of: Elliptio dilatata Rafinesque, 1820
straminea, Lampsilis straminea Conrad, 1834
straminea claibornensis, Lampsilis straminea claibornensis Lea, 1838
strebelii, Anodonta strebelii Lea, 1868 - syn of: Anodontites trapesialis (Lamarck, 1818)
streckeri, Lampsilis streckeri Frierson, 1927
striata, Anodon striata Heude, 1878 - syn of: Sinanodonta woodiana (Lea, 1834)
striatulus, Unio striatulus Lea, 1857 - syn of: Fusconaia masoni (Conrad, 1834)
stricklandii, Unio stricklandii Phillips, 1871 † (FOSSIL)
strigatus, Unio strigatus Servain, 1886 - syn of: Unio pictorum (Linnaeus, 1758)
strigillata, Theliderma cylindrica strigillata Wright
strigosus, Unio strigosus Lea, 1840 - syn of: Elliptio arctata Conrad, 1834
strobeliana, Anodonta strobeliana Adami, 1886 - syn of: Anodonta cygnea (Linnaeus, 1758)
strobeliana medoacensis, Anodonta strobeliana medoacensis Adami, 1886 - syn of: Anodonta cygnea (Linnaeus, 1758)
strodeanum, Pleurobema strodeanum Wright, 1898
strumosus, Unio strumosus Lea, 1872 - syn of: Elliptio congaraea (Lea, 1831)
stuarti, Alasmodon stuarti Adams & Angas, 1863 - syn of: Velesunio wilsonii (Lea, 1859)
stuhlmanni, Coelatura stuhlmanni (Von Martens, 1897)
sturmi, Anodonta sturmi Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
stygnus, Unio stygnus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
suavidicus, Unio suavidicus Lea, 1856 - syn of: Rhipidodonta suavidica (Lea, 1856)
subalata, Anodonta subalata Zieg, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
subamnicus, Unio subamnicus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
subangulata, Hamiota subangulata (Lea, 1840)
subangulata, Anodon subangulata Anthony, 1865 - syn of: Anodonta grandis Say, 1829
subbalatonicus, Unio subbalatonicus Servain, 1880 - syn of: Unio pictorum (Linnaeus, 1758)
subcarinata, Anodonta subcarinata Currier, 1867 - syn of: Pyganodon fragilis (Lamarck, 1819)
subcircularis, Contradens subcircularis (Brandt, 1974)
subcircularis, Anodonta subcircularis Clessin, 1873 - syn of: Anodonta anatina (Linnaeus, 1758)
subcrassa, Anodonta subcrassa Lea, 1850 - syn of: Simpsonella gracilis (Lea, 1850)
subcylindracea, Anodonta subcylindracea Lea, 1838 - syn of: Anodontoides ferussacianus (Lea, 1834)
subcylindracea, Anodon subcylindracea Sowerby, 1867 - syn of: Pyganodon fragilis (Lamarck, 1819)
subdepressa, Anodonta subdepressa Drouët, 0 - syn of: Anodonta cygnea (Linnaeus, 1758)
subellipsis, Unio subellipsis Lea, 1856 - syn of: Villosa lienosa (Conrad, 1834)
subflavus, Unio subflavus Lea, 1857 - syn of: Unio abbevillensis Lea, 1857
subgibbosa, Anodon subgibbosa Anthony, 1866 - syn of: Anodonta grandis Say, 1829
subhispanus, Unio subhispanus Locard, 1889 - syn of: Unio abrantesianus Locard, 1899
subinflata, Anodon subinflata Anthony, 1865 - syn of: Anodonta grandis Say, 1829
subinflatus, Unio subinflatus Conrad, 1835 - syn of: Unio abbevillensis Lea, 1857
sublatus, Unio sublatus Lea, 1857 - syn of: Elliptio pullata (Lea, 1856)
subluridus, Unio subluridus Simpson, 1892 - syn of: Elliptio jayensis Lea, 1838
subluxata, Anodonta subluxata Küster, 1842 - syn of: Anodonta cygnea (Linnaeus, 1758)
submucidus, Unio submucidus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
subniger, Unio subniger Lea, 1857 - syn of: Elliptio fumata (Lea, 1857)
subolivaceus, Unio subolivaceus Lea, 1874 - syn of: Unio abbevillensis Lea, 1857
suborbicularis, Unio suborbicularis Drouët, 1888 - syn of: Unio mancus Lamarck, 1819
suborbiculata, Utterbackiana suborbiculata (Say, 1831)
subparallelus, Unio subparallelus Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
subplanus, Unio subplanus Conrad, 1837 - syn of: Fusconaia masoni (Conrad, 1834)
subquadrangulata, Anodonta subquadrangulata Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
subquadrata, Unionelloides subquadrata (Ma, 1999) † (FOSSIL)
subregularis, Anodonta subregularis Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
subreniformis, Potomida littoralis subreniformis Bourguignat
subrostrata, Ligumia subrostrata (Say, 1831)
subrostrata, Anodonta subrostrata Philippi, 1869 - syn of: Anodontites trigona (Spix & Wagner, 1827)
subrotunda, Fusconaia subrotunda (Lea, 1831)
subrotunda, Obovaria subrotunda (Rafinesque, 1820)
subrotunda lesueuriana, Fusconaia subrotunda lesueuriana (Lea, 1840)
subrotundoides, Unio subrotundoides Lea, 1868 - syn of: Fusconaia subrotunda (Lea, 1831)
subsinuata, Anodonta subsinuata Philippi, 1869 - syn of: Anodontites tenebricosa (Lea, 1834)
subsquamosus, Unio subsquamosus Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
substriata, Radiatula substriata (Lea, 1856)
subtentum, Ptychobranchus subtentum (Say, 1825)
subtetragona, Anodon subtetragona Heude, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
subtetragonus, Potomida subtetragonus Michaud, 1831 - syn of: Potomida littoralis (Cuvier, 1798)
subtigridis, Unio subtigridis Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
subtilis, Unio subtilis Drouët, 1879 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
subtrapezius, Unio subtrapezius Philippi, 1847 - syn of: Rhipidodonta variabilis (Maton, 1811)
subtriangularis, Burtonia subtriangularis Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
subtrigonus, Unio subtrigonus Sowerby, 1867 - syn of: Pseudodon cambodjensis (Petit De La Saussaye, 1865)
subvexus, Strophitus subvexus Conrad, 1834
subviridis, Lasmigona subviridis (Conrad, 1835)
succinea, Anodon succinea Heude, 1880 - syn of: Sinanodonta woodiana (Lea, 1834)
succissa, Amphinaias succissa (Lea, 1852)
sudus, Unio sudus Lea, 1857 - syn of: Villosa lienosa (Conrad, 1834)
suevica, Anodonta suevica Kobelt, 1891 - syn of: Anodonta cygnea (Linnaeus, 1758)
suifunensis, Suifununio suifunensis Moskvicheva & Starobogatov, 1973 - syn of: Inversidens pantoensis (Neumayr, 1899)
suilla, Anodonta suilla Von Martens, 1902 - syn of: Sinanodonta woodiana (Lea, 1834)
sujfunensis, Middendorffinaia sujfunensis Moskvicheva & Starobogatov, 1973 - syn of: Inversidens pantoensis (Neumayr, 1899)
sujfunensis, Amuranodonta sujfunensis Moskvicheva, 1973 - syn of: Anemina arcaeformis (Heude, 1877)
sujfunensis, Buldowskia sujfunensis Zhadin, 1938 - syn of: Anemina arcaeformis (Heude, 1877)
sujfunica, Buldowskia sujfunica Lindholm, 1925 - syn of: Anemina arcaeformis (Heude, 1877)
sujfunica, Buldowskia sujfunica Moskvicheva, 1973 - syn of: Anemina arcaeformis (Heude, 1877)
sula, Unio sula Simpson, 1900 - syn of: Margaritifera laosensis (Lea, 1863)
sulcata, Anodonta sulcata Nilsson, 1822 - syn of: Anodonta cygnea (Linnaeus, 1758)
sulcata delicata, Scalenaria sulcata delicata Simpson, 1900 - syn of: Epioblasma obliquata (Rafinesque, 1820)
sulcatum, Pseudodon sulcatum Rochebrune, 1881 - syn of: Pseudodon cumingii (Lea, 1850)
sulcatus, Unio sulcatus Lea, 1829 - syn of: Epioblasma obliquata (Rafinesque, 1820)
sulcidens, Unio sulcidens Lamarck, 1819 - syn of: Unio abbevillensis Lea, 1857
sumatrensis, Rectidens sumatrensis (Dunker, 1852)
suni, Unionelloides suni (Chow, 1953) † (FOSSIL)
superbus, Physunio superbus (Lea, 1843)
superstes, Rhombuniopsis superstes (Neumayr, 1899)
suputinensis, Buldowskia suputinensis Moskvicheva, 1973 - syn of: Anemina arcaeformis (Heude, 1877)
surraulti, Unio surraulti Servain, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
susannae, Anodon susannae Griffith & Pidgeon, 1833 - syn of: Anodontites trapesialis susannae (Griffith & Pidgeon, 1833)
suttoni, Unio suttoni Wright, 1897 - syn of: Elliptio jayensis Lea, 1838
swainsoni, Unio swainsoni Sowerby, 1868 - syn of: Alasmidonta undulata (Say, 1817)
tabascensis, Anodonta tabascensis Morelet, 1884 - syn of: Anodonta grandis Say, 1829
tabascoensis, Nephronaias tabascoensis (Charpentier, 1856)
tabula, Anodon tabula Sowerby, 1867 - syn of: Chambardia wahlbergi (Krauss, 1848)
taeniata, Villosa taeniata (Conrad, 1829)
taganus, Unio taganus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
taitianum, Pleurobema taitianum Lea, 1834
taiwanicus, Nodularia douglasiae taiwanicus Pilsbry & Hirase
tamegana, Anodonta tamegana Da Silva e Castro, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
tameganus, Unio tameganus Locard, 1899 - syn of: Unio abrantesianus Locard, 1899
tampicoensis, Cyrtonaias tampicoensis (Lea, 1838)
tampicoensis kusteriana, Cyrtonaias tampicoensis kusteriana Frierson, 1927 - syn of: Cyrtonaias tampicoensis (Lea, 1838)
tanganikana, Burtonia tanganikana Bourguignat, 1883 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
tanganyicensis, Pseudospatha tanganyicensis (Smith, 1880)
tanganyicensis bequaerti, Pseudospatha tanganyicensis bequaerti Leloup, 1950 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
tanganyicensis typica, Pseudospatha tanganyicensis typica Leloup, 1950 - syn of: Pseudospatha tanganyicensis (Smith, 1880)
tanousi, Pseudanodonta tanousi Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848)
tappanianus, Unio tappanianus Lea, 1838 - syn of: Lasmigona subviridis (Conrad, 1835)
taranetsi, Kunashiria taranetsi Kantor & Sysoev, 2005 - syn of: Sinanodonta woodiana (Lea, 1834)
taumilapana, Sphenonaias taumilapana (Conrad, 1855)
taunica, Unio taunica Kobelt, 1886 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
taurica, Anodonta taurica Bourguignat, 1880 - syn of: Anodonta cygnea (Linnaeus, 1758)
taurica pachyta, Unio taurica pachyta Westerlund, 1885 - syn of: Lymnaea pachyta (Westerlund, 1885)
tauriformis, Rhombuniopsis tauriformis (Fulton, 1906)
tavoyensis, Parreysia tavoyensis (Gould, 1843)
tawaii, Anodonta tawaii Rang, 1835 - syn of: Aspatharia chaiziana (Rang, 1835)
tecomatensis, Unio tecomatensis Lea, 1841 - syn of: Cyrtonaias tampicoensis (Lea, 1838)
tedreftensis, Saharella tedreftensis Mongin, 1963 † (FOSSIL)
tehuantepecensis, Popenaias tehuantepecensis (Crosse & Fischer, 1893)
tehuantepecensis, Unio tehuantepecensis Crosse & Fischer, 1893 - syn of: Popenaias tehuantepecensis (Crosse & Fischer, 1893)
tehuantepecensis, Anodonta tehuantepecensis Crosse & Fischer, 1894 - syn of: Anodontites tehuantepecensis (Crosse & Fischer, 1894)
tellicoensis, Unio tellicoensis Lea, 1872 - syn of: Fusconaia barnesiana (Lea, 1829)
telmaeca, Anodonta telmaeca Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
telmoeca, Anodonta telmoeca Servain, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
tempisquensis, Nephronaias tempisquensis Pilsbry, 1920
tenebricus, Unio tenebricus Lea, 1857 - syn of: Villosa umbrans (Lea, 1857)
tenerrimus, Pseudodon cambodjensis tenerrimus Brandt
tennentii, Unio tennentii Hanley & Theobald, 1876 - syn of: Parreysia corrugata (Müller, 1774)
tenuis, Cristaria tenuis (Griffith & Pidgeon, 1833)
tenuis, Anodonta tenuis Lea, 1850 - syn of: Simpsonella gracilis (Lea, 1850)
tenuisculus, Unio tenuisculus Frierson, 1911 - syn of: Elliptio jayensis Lea, 1838
tenuissima, Symphynota tenuissima Lea, 1829 - syn of: Leptodea leptodon (Rafinesque, 1820)
teres, Anodonta teres Conrad, 1834 - syn of: Anodonta cataracta Say, 1817
teres, Lampsilis teres Rafinesque, 1820
teres anodontoides, Lampsilis teres anodontoides Rafinesque, 1820
teres fallaciosus, Lampsilis teres fallaciosus Rafinesque, 1820
teretiuscula, Nitia teretiuscula (Philippi, 1847)
terminalis, Unio terminalis Bourguignat, 1852
terminalis delicatus, Unio terminalis delicatus (Lea, 1863)
testudinarius, Lamellidens testudinarius Spengler, 1793 - syn of: Lamellidens marginalis (Lamarck, 1819)
testudineus, Unio testudineus Morelet, 1849 - syn of: Psoronaias semigranosa (Busch, 1845)
testudineus, Unio testudineus Reeve, 1865 - syn of: Cyrtonaias livida (Simpson, 1900)
tetragona, Anodonta tetragona Lea, 1845 - syn of: Strophitus undulatus (Say, 1817)
tetralasmus, Uniomerus tetralasmus (Say, 1831)
tetricus, Unio tetricus Lea, 1857 - syn of: Elliptio pullata (Lea, 1856)
texasensis, Carunculina texasensis Lea, 1838 - syn of: Toxolasma texasiensis Lea, 1838
texasensis, Anodonta texasensis Lea, 1859 - syn of: Anodonta grandis Say, 1829
texasiensis, Toxolasma texasiensis Lea, 1838
texasiensis compressus, Carunculina texasiensis compressus Simpson, 1900 - syn of: Toxolasma texasiensis Lea, 1838
theca, Trapezoideus theca (Benson, 1862)
theobaldi, Radiatula theobaldi Preston, 1912
theryi, Anodonta theryi Bèdé, 1932 - syn of: Anodonta cygnea (Linnaeus, 1758)
thiessae, Anodonta thiessae Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
thomsoni, Pseudodon thomsoni Morelet, 1884
tiberiadensis, Unio tiberiadensis Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
tientsinensis, Aculamprotula tientsinensis (Crosse & Debeaux, 1863)
tiflecticus, Unio tiflecticus Pallary, 1923 - syn of: Unio gibbus Spengler, 1793
tigridis, Unio tigridis Bourguignat, 1852
tigridis terminalis, Unio tigridis terminalis Bourguignat, 1852 - syn of: Unio tigridis Bourguignat, 1852
tigurica, Anodonta tigurica Servain, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
tihanyca, Anodonta tihanyca Servain, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
tinctus, Unio tinctus Drouët, 1893 - syn of: Potomida littoralis (Cuvier, 1798)
tissoti, Anodonta tissoti Servain, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
tombigbeanum, Pleurobema tombigbeanum Frierson, 1908 - syn of: Pleurobema taitianum Lea, 1834
torsa, Obovaria torsa Rafinesque, 1820 - syn of: Obovaria retusa Lamarck, 1819
torsa marginata, Obovaria torsa marginata Rafinesque, 1820 - syn of: Obovaria retusa Lamarck, 1819
torsatellus, Unio torsatellus Berthier, 1882 - syn of: Unio pictorum (Linnaeus, 1758)
tortilis, Anodonta tortilis Lea, 1852 - syn of: Anodontites tortilis (Lea, 1852)
tortivus, Unio tortivus Lea, 1840 - syn of: Elliptio arctata Conrad, 1834
tortulosa, Epioblasma tortulosa Rafinesque, 1820 - syn of: Epioblasma torulosa (Rafinesque, 1820)
tortuosa, Aculamprotula tortuosa (Lea, 1865)
torulosa, Epioblasma torulosa (Rafinesque, 1820)
torulosa angulata, Amblema torulosa angulata Rafinesque, 1820 - syn of: Epioblasma torulosa (Rafinesque, 1820)
torulosa rangiana, Epioblasma torulosa rangiana Lea, 1838
torulosus, Unio torulosus Férussac, 1835 - syn of: Elliptio dilatata Rafinesque, 1820
trabalis, Villosa trabalis (Conrad, 1834)
transsylvanica, Anodonta transsylvanica Haas, 1911 - syn of: Anodonta cygnea (Linnaeus, 1758)
trapesialis, Anodonta trapesialis Lamarck, 1818 - syn of: Anodontites trapesialis (Lamarck, 1818)
trapezea, Anodonta trapezea Ihering, 1890 - syn of: Anodontites trapezea (Spix & Wagner, 1827)
trapezea spixii, Anodonta trapezea spixii Ihering, 1890 - syn of: Anodontites trapezea (Spix & Wagner, 1827)
trapeziana rotundum, Anodonta trapeziana rotundum Doering, 1874 - syn of: Anodontites trapezea (Spix & Wagner, 1827)
trautwiniana, Anodonta trautwiniana Lea, 1852 - syn of: Anodontites carinata (Dunker, 1858)
triangula, Acuticosta trisulcata triangula Tchang, Li & Liu
triangula, Acuticosta triangula Tchang, Li & Liu, 1965 - syn of: Acuticosta trisulcata triangula Tchang, Li & Liu, 1965
triangularis, Solenaia triangularis Heude, 1874
triangularis, Anodonta triangularis Trask, 1855 - syn of: Anodonta nuttalliana (Lea, 1838)
triangulata, Alasmidonta triangulata Lea, 1858
tricassinaeformis, Anodonta tricassinaeformis Schröder, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
triclava, Lamprotula triclava (Heude, 1877)
tricolor, Unio tricolor Küster, 1856 - syn of: Lamellidens generosus (Gould, 1847)
tricostatus, Anodon tricostatus Sowerby, 1870 - syn of: Sinanodonta woodiana (Lea, 1834)
triembola, Parreysia triembola Benson, 1855
trifidus, Unio trifidus Lea, 1860 - syn of: Diplodon parallelopipedon (Lea, 1834)
triformis, Lanceolaria triformis (Heude, 1877)
trigona, Fusconaia trigona Lea, 1831 - syn of: Fusconaia flava (Rafinesque, 1820)
trigonus, Anodon trigonus Spix & Wagner, 1827 - syn of: Anodontites trigona (Spix & Wagner, 1827)
trinacrus, Unio trinacrus Lea, 1861 - syn of: Ptychobranchus foremanianus (Lea, 1842)
trinurcina, Anodonta trinurcina Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
tripartitus, Unio tripartitus Lea, 1863 - syn of: Parreysia favidens (Benson, 1862)
tripolitana kebirensis, Leguminaia tripolitana kebirensis Pallary, 1939 - syn of: Leguminaia saulcyi (Bourguignat, 1852)
tripolitanus, Unio tripolitanus Bourguignat, 1852 - syn of: Leguminaia saulcyi (Bourguignat, 1852)
triquetra, Dysnomia triquetra (Rafinesque, 1820)
triradiata, Unio triradiata Lea, 1836 - syn of: Parreysia corrugata (Müller, 1774)
trirostris, Unio trirostris Musgrave, 1863 - syn of: Parreysia favidens (Benson, 1862)
trirostris, Unio trirostris Sowerby, 1868 - syn of: Radiatula caerulea (Lea, 1831)
tristrami, Unio tristrami Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
trisulcata, Acuticosta trisulcata (Heude, 1883)
trisulcata triangula, Acuticosta trisulcata triangula Tchang, Li & Liu, 1965
trompi, Elongaria trompi (Drouët & Chaper, 1892)
troostensis, Unio troostensis Lea, 1834 - syn of: Villosa trabalis (Conrad, 1834)
troostensis, Unio troostensis Sowerby, 1868 - syn of: Villosa perpurpurea (Lea, 1861)
troschelianum, Unio troschelianum Lea, 1852 - syn of: Pleurobema georgianum Lea, 1841
truncata, Anodonta truncata Bourguignat, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
truncata, Anodonta truncata Brusina, 1866 - syn of: Anodonta cygnea (Linnaeus, 1758)
truncata, Truncilla truncata Rafinesque, 1820
truncata, Cristaria truncata Thanh, Thái & Pham, 1980
truncatosa, Palindonaia truncatosa (Michaud, 1837) † (FOSSIL)
truncatula goupili, Unio truncatula goupili Moquin-Tandon, 1856 - syn of: Lymnaea goupili (Moquin-Tandon, 1856)
truncatus, Microcondylaea truncatus Drouët, 1883 - syn of: Microcondylaea compressa (Menke, 1830)
truncilla, Anodonta truncilla Stilwell & Zinsmeister, 1992 † (FOSSIL)
tryoni, Unio tryoni Wright, 1888 - syn of: Elliptio jayensis Lea, 1838
tryonii, Anodonta tryonii Lea, 1862 - syn of: Anodonta cataracta Say, 1817
tuberculata, Cyclonaias tuberculata (Rafinesque, 1820)
tuberculata, Anodonta tuberculata Da Silva e Castro, 1885 - syn of: Anodonta cygnea (Linnaeus, 1758)
tuberculata, Cristaria tuberculata Schumacher, 1817 - syn of: Cristaria plicata (Leach, 1815)
tuberosa, Quadrula tuberosa Lea, 1840 - syn of: Theliderma metanevra (Rafinesque, 1820)
tuberosus, Unio tuberosus Lea, 1840 - syn of: Theliderma intermedia (Conrad, 1836)
tuberosus perlobatus, Unio tuberosus perlobatus De Gregorio, 1914 - syn of: Theliderma intermedia (Conrad, 1836)
tumescens, Unio tumescens Lea, 1845 - syn of: Fusconaia barnesiana (Lea, 1829)
tumida, Anodon tumida Heude, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
tumida, Anodonta tumida Küster, 1842 - syn of: Anodonta cygnea (Linnaeus, 1758)
tumidiformis, Unio tumidiformis Da Silva e Castro, 1885 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
tumidula, Contradens contradens tumidula Lea
tumidulus, Unio tumidulus Locard, 1889 - syn of: Unio tumidus Retzius, 1788
tumidus, Pseudodon tumidus (Morelet, 1866)
tumidus, Unio tumidus Retzius, 1788
tumidus borysthenensis, Unio tumidus borysthenensis Kobelt, 1880 - syn of: Unio tumidus Retzius, 1788
tumidus conus, Unio tumidus conus Spengler, 1793
tumidus falcatulus, Unio tumidus falcatulus (Drouët, 1881)
tuomeyi, Unio tuomeyi Lea, 1852 - syn of: Elliptio cylindracea Frierson, 1927
turdetanus, Unio turdetanus Drouët, 1893 - syn of: Unio gibbus Spengler, 1793
turgidula, Dysnomia turgidula Lea, 1858
turtonii, Unio turtonii Payraudeau, 1826 - syn of: Unio mancus Lamarck, 1819
tyhanica, Anodonta tyhanica Kobelt & Haas, 1911 - syn of: Anodonta cygnea (Linnaeus, 1758)
typa, Lithodomina typa Waagen, 1881 † (FOSSIL)
ucayalensis, Anodonta ucayalensis Philippi, 1869 - syn of: Anodontites trigona (Spix & Wagner, 1827)
uhareensis, Unio uhareensis Lea, 1868 - syn of: Unio abbevillensis Lea, 1857
ujijiensis, Nyassunio ujijiensis (Crosse, 1881)
umbonata, Potomida littoralis umbonata Rossmässler
umbrans, Villosa umbrans (Lea, 1857)
umbrosa, Cyrtonaias umbrosa (Lea, 1856)
unadilla, Anodon unadilla De Kay, 1843 - syn of: Strophitus undulatus (Say, 1817)
undata, Fusconaia flava undata Parmalee
undivaga, Actinonaias undivaga (Pilsbry, 1910)
undulata, Alasmidonta undulata (Say, 1817)
undulata, Nodularia undulata Haas, 1910 - syn of: Unio schoedei (Haas, 1930)
undulatus, Strophitus undulatus (Say, 1817)
undulatus, Bisulcus undulatus Hitchcock, 1862 † (FOSSIL)
undulatus ovatus, Strophitus undulatus ovatus Frierson, 1927 - syn of: Strophitus undulatus (Say, 1817)
undulatus tennesseensis, Strophitus undulatus tennesseensis Frierson, 1927 - syn of: Strophitus undulatus (Say, 1817)
undulifera, Anodonta undulifera Clessin, 1876 - syn of: Sinanodonta woodiana (Lea, 1834)
unduliferus, Potomida unduliferus Küster, 1861 - syn of: Potomida littoralis (Cuvier, 1798)
unicolor, Obovaria unicolor Lea, 1845
unioides, Lamellidens unioides Nesemann, Sharma, Sharma & al., 2007
uniopsis, Anodonta uniopsis Lamarck, 1819 - syn of: Microcondylaea compressa (Menke, 1830)
uruguayensis, Unio uruguayensis Lea, 1860 - syn of: Diplodon wymanii (Lea, 1860)
ussuriensis, Lanceolaria ussuriensis Moskvicheva, 1973 - syn of: Lanceolaria cylindrica (Simpson, 1900)
ussuriensis, Anemina ussuriensis Qian, Fang & He, 2015
usumasintae, Psorula usumasintae (Crosse & Fischer, 1892)
utii, Unio utii Fleming † (FOSSIL)
utinensis, Anodonta utinensis Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
utriculosa, Anodonta utriculosa Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
utriculus, Unio utriculus Lea, 1845 - syn of: Fusconaia masoni (Conrad, 1834)
vaalensis, Unio vaalensis Chaper, 1885 - syn of: Unio caffer (Krauss, 1848)
vagulus, Unio vagulus Fischer, 1891 - syn of: Pseudodon cambodjensis (Petit De La Saussaye, 1865)
valdensis, Unio valdensis Mantell, 1844 † - syn of: Paraheudeana valdensis (Mantell, 1844) † (FOSSIL)
valentina, Anodonta valentina Drouët, 1894 - syn of: Anodonta cygnea (Linnaeus, 1758)
valentinus, Unio valentinus Rossmässler, 1854 - syn of: Unio mancus Lamarck, 1819
validus, Unio validus Lea, 1871 - syn of: Fusconaia barnesiana (Lea, 1829)
vallieriacus, Unio vallieriacus Bourguignat, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
vandervlerki, Trigonodon vandervlerki Oostingh, 1935 † (FOSSIL)
vanheurni, Haasodonta vanheurni McMichael & Hiscock, 1958
vanuxemensis, Villosa vanuxemensis (Lea, 1838)
vanuxemensis umbrans, Villosa vanuxemensis umbrans Lea, 1857 - syn of: Villosa umbrans (Lea, 1857)
variabilis, Anodonta variabilis Draparnaud, 1801 - syn of: Anodonta cygnea (Linnaeus, 1758)
variabilis, Schepmania variabilis Schepman, 1913 - syn of: Shutonia variabilis (Schepman, 1913)
varicosa, Alasmidonta varicosa (Lamarck, 1819)
varicosus, Unio varicosus Lea, 1831 - syn of: Plethobasus cicatricosus (Say, 1829)
vaschaldei, Anodonta vaschaldei Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
vaughaniana, Villosa vaughaniana (Lea, 1838)
vegesackensis, Unio vegesackensis Servain, 1888 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
vegesakensis, Anodonta vegesakensis Bourguignat, 1882 - syn of: Anodonta cygnea (Linnaeus, 1758)
velaris, Unio velaris Sowerby, 1868 - syn of: Physunio friersoni Simpson, 1914
velatus, Unio velatus Conrad, 1854 - syn of: Ptychobranchus foremanianus (Lea, 1842)
velthuizeni, Hyriopsis velthuizeni (Schepman, 1895)
velum, Unio velum Say, 1829 - syn of: Leptodea leptodon (Rafinesque, 1820)
ventricosa, Lampsilis ovata ventricosa Barnes
ventricosa, Anodonta ventricosa Dupuy, 1850 - syn of: Anodonta cygnea (Linnaeus, 1758)
ventricosa, Anodonta ventricosa Küster, 1853 - syn of: Anodonta cygnea (Linnaeus, 1758)
ventricosa, Anodonta ventricosa Pfeiffer, 1825 - syn of: Anodonta cygnea (Linnaeus, 1758)
ventricosus, Lampsilis ventricosus Barnes, 1823 - syn of: Lampsilis ovata ventricosa Barnes, 1823
ventrosa, Brazzaea ventrosa Bourguignat, 1886 - syn of: Brazzaea anceyi Bourguignat, 1885
venustus, Unio venustus Lea, 1838 - syn of: Venustaconcha ellipsiformis (Conrad, 1836)
venustus, Unio venustus Morelet, 1866 - syn of: Scabies crispata (Gould, 1843)
veraepacis, Unio veraepacis Tristram, 1863 - syn of: Popenaias popeii (Lea, 1857)
verrucifer, Unio verrucifer Von Martens, 1894 - syn of: Nodularia douglasiae (Gray, 1834)
verrucosa, Tritogonia verrucosa (Rafinesque, 1820)
verrucosa, Nodularia verrucosa Haas, 1910 - syn of: Nodularia douglasiae (Gray, 1834)
verrucosus, Inversiunio verrucosus Kondo, Yang & Choi, 2007
verum, Pleurobema verum Lea, 1861
verutus, Unio verutus Lea, 1859 - syn of: Elliptio pullata (Lea, 1856)
veschaldei, Anodonta veschaldei Germain, 1931 - syn of: Anodonta cygnea (Linnaeus, 1758)
vescoiana, Anodonta vescoiana Bourguignat, 1856
vestitus, Unio vestitus Lea, 1862 - syn of: Elliptio congaraea (Lea, 1831)
vetula, Anodonta vetula Gallenstein, 1852 - syn of: Anodonta cygnea (Linnaeus, 1758)
vibex, Villosa vibex (Conrad, 1834)
vicaryi, Unio vicaryi Blanford, 1883 † - syn of: Indobaphia vicaryi (Blanford, 1883) † (FOSSIL)
vicinus, Unio vicinus Lea, 1856 - syn of: Unio abbevillensis Lea, 1857
vietula, Anodonta vietula Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
vignardi, Unio vignardi Pallary, 1924 - syn of: Unio abyssinicus Von Martens, 1866
villae, Anodonta villae Drouët, 1883 - syn of: Anodonta cygnea (Linnaeus, 1758)
villosa, Villosa villosa (Wright, 1898)
violacea, Obliquaria violacea Rafinesque, 1831 - syn of: Elliptio dilatata Rafinesque, 1820
violaceus, Unio violaceus Spengler, 1793 - syn of: Unio abbevillensis Lea, 1857
virens, Anodonta virens Lea, 1852 - syn of: Anodonta grandis Say, 1829
virens, Unio virens Lea, 1857 - syn of: Unio abbevillensis Lea, 1857
virescens, Lampsilis virescens Lea, 1858
virgata, Anodonta virgata Conrad, 1836 - syn of: Strophitus undulatus (Say, 1817)
virginiana, Unio virginiana Lamarck, 1819 - syn of: Unio abbevillensis Lea, 1857
virgulata, Anodonta virgulata Lea, 1857 - syn of: Anodonta cataracta Say, 1817
viridans, Unio viridans Lea, 1859 - syn of: Elliptio arctata Conrad, 1834
viridiflava, Anodonta viridiflava Drouët, 1893 - syn of: Anodonta cygnea (Linnaeus, 1758)
viridiradiatus, Unio viridiradiatus Lea, 1859 - syn of: Elliptio pullata (Lea, 1856)
viridis, Unio viridis Conrad, 1835 - syn of: Lasmigona subviridis (Conrad, 1835)
viridis, Alasmidonta viridis Rafinesque, 1820
viridulus, Unio viridulus Lea, 1863 - syn of: Elliptio lanceolata Lea, 1827
visseri, Unio visseri Bourguignat, 1886 - syn of: Coelatura horei (Smith, 1880)
visurgicus, Unio visurgicus Servain, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
visurgisina, Anodonta visurgisina Servain, 1888 - syn of: Anodonta cygnea (Linnaeus, 1758)
visurgisinus, Unio visurgisinus Servain, 1888 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
visurgitana, Anodonta visurgitana Locard, 1890 - syn of: Anodonta cygnea (Linnaeus, 1758)
vittatis, Bariosta vittatis Rafinesque, 1831 - syn of: Actinonaias pectorosa (Conrad, 1834)
vittatus, Unio vittatus Férussac, 1835 - syn of: Actinonaias pectorosa (Conrad, 1834)
vittatus, Unio vittatus Lea, 1859 - syn of: Velesunio ambiguus (Philippi, 1847)
vladivostokensis, Unio vladivostokensis Moskvicheva, 1973 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
volgensis, Anodonta volgensis Zhadin, 1938 - syn of: Anodonta cygnea (Linnaeus, 1758)
vondembuschiana, Alasmodonta vondembuschiana Issel, 1874 - syn of: Pseudodon crassus Drouët & Chaper, 1892
vondembuschianus, Pseudodon vondembuschianus (Lea, 1840)
vulcanus, Unio vulcanus Hanley, 1875 - syn of: Parreysia burmana Blanford, 1869
vynckei, Unio vynckei Bourguignat, 1886 - syn of: Coelatura horei (Smith, 1880)
waccamawensis, Elliptio waccamawensis Lea, 1863
wahlamatensis, Anodonta wahlamatensis Lea, 1838 - syn of: Anodonta nuttalliana (Lea, 1838)
waikarensis, Unio waikarensis Colenso, 1845 - syn of: Echyridella menziesii (Gray, 1843)
walkeri, Medionidus walkeri (Wright, 1897)
walkeri, Disconaias walkeri Baker, 1922 - syn of: Disconaias fimbriata (Frierson, 1907)
walkeri, Truncilla walkeri Wilson & Clark, 1914 - syn of: Epioblasma florentina (Lea, 1857)
wallisi, Anodonta wallisi Mousson, 1869 - syn of: Anodontites trapesialis (Lamarck, 1818)
walpolei, Pseudodon walpolei (Hanley, 1871)
waltoni, Elliptio waltoni Wright, 1888
wardiana, Anodonta wardiana Lea, 1838 - syn of: Strophitus undulatus (Say, 1817)
wateleti, Palindonaia wateleti (Deshayes, 1860) † (FOSSIL)
watereensis, Unio watereensis Lea, 1836 - syn of: Elliptio raveneli Conrad, 1834
watersoni, Anodonta watersoni Tomlin, 1923 - syn of: Anodonta cygnea (Linnaeus, 1758)
waterstoni, Anodonta waterstoni Tomlin, 1923 - syn of: Anodonta cygnea (Linnaeus, 1758)
webbianus, Elliptio webbianus Wright, 1934 - syn of: Elliptio jayensis Lea, 1838
websterii, Unio websterii Wright, 1888 - syn of: Elliptio monroensis Lea, 1843
weddellii, Anodonta weddellii Hupé, 1857 - syn of: Anodontites patagonica Lamarck, 1819
weldonensis, Unio weldonensis Lea, 1863 - syn of: Unio abbevillensis Lea, 1857
weliczkowskii, Pseudopotomida weliczkowskii Moskvicheva & Starobogatov, 1973 - syn of: Inversidens pantoensis (Neumayr, 1899)
wheatleyanus, Unio wheatleyanus Lea, 1834 - syn of: Rhipidodonta burroughiana (Lea, 1834)
wheatleyi, Leguminaia wheatleyi (Lea, 1862)
wheatleyi, Anodonta wheatleyi Lea, 1852 - syn of: Anodontites elongata (Swainson, 1823)
wheatleyi, Unio wheatleyi Lea, 1857 - syn of: Unio abbevillensis Lea, 1857
wheatleyi, Monocondyloea wheatleyi Lea, 1862 - syn of: Leguminaia wheatleyi (Lea, 1862)
wheeleri, Arkansia wheeleri Ortmann & Walker, 1912
willcocksi, Unio willcocksi Newton, 1899 - syn of: Unio abyssinicus Von Martens, 1866
williamsii, Anodonta williamsii Lea, 1862 - syn of: Anodonta cataracta Say, 1817
wilsonii, Unio wilsonii Lea, 1859 - syn of: Velesunio wilsonii (Lea, 1859)
wimmeri, Anodonta wimmeri Drouët, 1881 - syn of: Anodonta cygnea (Linnaeus, 1758)
woodiana, Sinanodonta woodiana (Lea, 1834)
woodiana, Anodonta woodiana Kobelt, 1879 - syn of: Sinanodonta woodiana (Lea, 1834)
woodiana calipygos, Anodonta woodiana calipygos Kobelt, 1879 - syn of: Sinanodonta woodiana calypigos (Kobelt, 1879)
woodiana calypigos, Sinanodonta woodiana calypigos (Kobelt, 1879)
woodiana elliptica, Sinanodonta woodiana elliptica (Heude, 1878)
woodiana elliptica, Anodonta woodiana elliptica Zhadin, 1938 - syn of: Sinanodonta woodiana (Lea, 1834)
woodiana fukudai, Anodonta woodiana fukudai Modell, 1945 - syn of: Sinanodonta woodiana (Lea, 1834)
woodiana pacifica, Sinanodonta woodiana pacifica (Heude)
woodiana piscatorum, Sinanodonta woodiana piscatorum (Heude, 1878)
woodwardianus, Unio woodwardianus Lea, 1859 - syn of: Ptychobranchus foremanianus (Lea, 1842)
wrightiana, Alasmidonta wrightiana Walker, 1901
wrightii, Unio wrightii Lea, 1865 - syn of: Nodularia douglasiae (Gray, 1834)
wymanii, Unio wymanii Lea, 1860 - syn of: Diplodon wymanii (Lea, 1860)
wynegungaensis, Unio wynegungaensis Lea, 1860 - syn of: Parreysia corrugata (Müller, 1774)
yadkinensis, Unio yadkinensis Lea, 1872 - syn of: Unio abbevillensis Lea, 1857
yajiangensis, Unionelloides yajiangensis (Liu, 1984) † (FOSSIL)
yanagawensis, Inversiunio yanagawensis (Kondo, 1982)
youcanensis, Anodonta youcanensis Paetel, 1890 - syn of: Anodonta beringiana (Middendorff, 1851)
youconensis, Anodonta youconensis Lea, 1867 - syn of: Anodonta beringiana (Middendorff, 1851)
youkamensis, Anodon youkamensis Sowerby, 1870 - syn of: Anodonta beringiana (Middendorff, 1851)
youkanensis, Anodonta youkanensis Lea, 1867 - syn of: Anodonta beringiana (Middendorff, 1851)
youkonensis, Beringiana youkonensis Zatrawkin, 1983 - syn of: Anodonta beringiana (Middendorff, 1851)
yubaensis, Alasmodon yubaensis Trask, 1855 - syn of: Margaritifera falcata (Gould, 1850)
yueyingae, Lanceolaria yueyingae He & Zhuang, 2013
yzabalensis, Nephronaias yzabalensis (Crosse & Fischer, 1892)
zabulonicus, Unio zabulonicus Locard, 1883 - syn of: Unio terminalis Bourguignat, 1852
zarjaensis, Arsenievinaia zarjaensis Bogatov & Zatrawkin, 1988 - syn of: Sinanodonta woodiana (Lea, 1834)
zatravkini, Arsenievinaia zatravkini Bogatov & Starobogatov, 1996 - syn of: Anodonta beringiana (Middendorff, 1851)
zatravkini, Buldowskia zatravkini Starobogatov, 2004 - syn of: Anemina arcaeformis (Heude, 1877)
zatrawkini, Buldowskia zatrawkini Martynov & Chernyshev, 1992 - syn of: Anemina arcaeformis (Heude, 1877)
zelebori, Unio zelebori McMichael & Hiscock, 1958 - syn of: Echyridella menziesii (Gray, 1843)
zellensis, Anodonta zellensis Gmelin, 1791 - syn of: Anodonta cygnea (Linnaeus, 1758)
zenii, Anodonta zenii Adami, 1886 - syn of: Anodonta cygnea (Linnaeus, 1758)
zimini, Arsenievinaia zimini Zatrawkin & Bogatov, 1987 - syn of: Sinanodonta woodiana (Lea, 1834)
zoasthenicus, Unio zoasthenicus Locard, 1889 - syn of: Unio arcuatus Bouchard-Chantereaux, 1838
zonata, Aculamprotula zonata (Heude, 1883)
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