acuta, Echyridella menziesii acuta Suter
acuticosta, Castalia acuticosta Hupé, 1857 - syn of: Castalia ambigua (Lamarck, 1819)
aethiopiformis, Rhipidodonta charruana aethiopiformis Simpson
alata, Hyria alata Sowerby, 1869 - syn of: Prisodon syrmatophorus (Gmelin, 1791)
albertisi, Westralunio albertisi Clench, 1957
ambigua, Castalia ambigua (Lamarck, 1819)
ambigua, Hyridella ambigua Cotton & Gabriel, 1932 - syn of: Westralunio carteri Iredale, 1934
ambigua, Castalia ambigua Wood, 1828 - syn of: Castalia ambigua (Lamarck, 1819)
ambigua inflata, Castalia ambigua inflata D'Orbigny, 1835 - syn of: Castalia inflata D'Orbigny, 1835
ambigua juruana, Castalia ambigua juruana (Ihering, 1910)
ambigua kusteri, Castalia ambigua kusteri Ihering, 1893 - syn of: Castalia ambigua (Lamarck, 1819)
ambigua multisulcata, Castalia ambigua multisulcata Bonetto, 1965 - syn of: Castalia multisulcata Hupé, 1857
ambigua quadrilatera, Castalia ambigua quadrilatera D'Orbigny, 1835
ambiguus, Velesunio ambiguus (Philippi, 1847)
ambiguus carteri, Westralunio ambiguus carteri Iredale, 1934 - syn of: Westralunio carteri Iredale, 1934
amygdalaeformis, Diplodon amygdalaeformis Wesselingh, 2006 † (FOSSIL)
angasi, Velesunio angasi (Sowerby, 1867)
angasi subjecta, Centralhyria angasi subjecta Iredale, 1934 - syn of: Westralunio carteri Iredale, 1934
anodontaeformis, Velesunio anodontaeformis (Tapparone-Canefri, 1883)
anodontaeformis, Hyridella anodontaeformis Johnson, 1948 - syn of: Velesunio wilsonii (Lea, 1859)
anodontaeformis, Microdontia anodontaeformis Tapparone-Canefri, 1883 - syn of: Velesunio anodontaeformis (Tapparone-Canefri, 1883)
apprimus, Diplodon wymanii apprimus Lea
arcuatus, Diplodon arcuatus Marshall, 1922 - syn of: Rhipidodonta funebralis (Lea, 1834)
asuncionis, Rhipidodonta hylaea asuncionis Marshall
asuncionis, Diplodon asuncionis Marshall, 1926 - syn of: Rhipidodonta hylaea asuncionis (Marshall, 1922)
aucklandica, Echyridella aucklandica (Gray, 1843)
aucklandica, Hyridella aucklandica Gray, 1843 - syn of: Echyridella aucklandica (Gray, 1843)
aucklandicus, Hyridella aucklandicus Dell, 1953 - syn of: Cucumerunio websteri (Simpson, 1902)
australis, Hyridella australis (Lamarck, 1819)
australis, Hyridunio australis Iredale, 1934 - syn of: Hyridella drapeta Iredale, 1934
australis, Diplodon australis May, 1921 - syn of: Velesunio moretonicus (Reeve, 1865)
australis casus, Hyridunio australis casus Iredale, 1943 - syn of: Hyridella drapeta Iredale, 1934
australis drapeta, Hyridunio australis drapeta Iredale, 1934 - syn of: Hyridella drapeta Iredale, 1934
australis orion, Hyridunio australis orion Iredale, 1934 - syn of: Hyridella drapeta Iredale, 1934
avicularis, Hyria avicularis Lamarck, 1819 - syn of: Prisodon syrmatophorus (Gmelin, 1791)
bakeri, Diplodon bakeri Marshall, 0 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
balonnensis adjunctus, Velesunio balonnensis adjunctus Iredale, 1934 - syn of: Velesunio ambiguus (Philippi, 1847)
balonnensis intricatus, Velesunio balonnensis intricatus Iredale, 1934 - syn of: Velesunio ambiguus (Philippi, 1847)
bardwelli, Hyridella bardwelli Clench, 1934 - syn of: Velesunio angasi (Sowerby, 1867)
baro, Tetraplodon baro Ihering, 1910 - syn of: Castalia ambigua (Lamarck, 1819)
beccarianus, Virgus beccarianus (Tapparone-Canefri, 1883)
berthae, Diplodon berthae Ortmann, 1921 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
besckeanus, Diplodon besckeanus (Dunker, 1848)
besckeanus nordestinus, Diplodon besckeanus nordestinus Haas, 1938 - syn of: Rhipidodonta rhombea (Spix & Wagner, 1827)
beskeanus, Diplodon beskeanus Lea, 1852 - syn of: Diplodon besckeanus (Dunker, 1848)
bibliana, Ecuadorea bibliana Marshall & Bowles, 1932 - syn of: Rhipidodonta hylaea (D'Orbigny, 1835)
bromnii, Diplodon bromnii Simone, 2006 - syn of: Diplodon delodontus (Lamarck, 1819)
burroughiana, Rhipidodonta burroughiana (Lea, 1834)
burroughiana wheatleyanus, Rhipidodonta burroughiana wheatleyanus (Lea, 1856)
carolinensis, Castalia carolinensis Sowerby, 1869 - syn of: Castalia ambigua (Lamarck, 1819)
carteri, Westralunio carteri Iredale, 1934
charruana, Rhipidodonta charruana (D'Orbigny, 1835)
charruana aethiopiformis, Rhipidodonta charruana aethiopiformis Simpson, 1900
charruana faba, Rhipidodonta charruana faba (D'Orbigny, 1835)
charruana peraeformis, Rhipidodonta charruana peraeformis (Lea, 1860)
chilensis, Diplodon chilensis (Gray, 1852)
chilensis patagonica, Diplodon chilensis patagonica (D'Orbigny, 1835)
chodo, Triplodon chodo Mansur & Pimpão, 2008
colombiana, Chevronais colombiana Olsson & Wurtz, 1951 - syn of: Castalia ambigua (Lamarck, 1819)
complanata, Hyria complanata Hupé, 1857 - syn of: Prisodon syrmatophorus (Gmelin, 1791)
condola, Alathyria condola Iredale, 1943
cordata, Castalia cordata Adams & Adams, 1857 - syn of: Castalia multisulcata Hupé, 1857
cordata, Hyria cordata Menke, 1828 - syn of: Prisodon syrmatophorus (Gmelin, 1791)
cordata, Castalia cordata Ströbel, 1874 - syn of: Castalia ambigua (Lamarck, 1819)
cordata, Castalia cordata Swainson, 1840
coriaceus, Diplodon multistriatus coriaceus Dunker
corrugatus, Prisodon corrugatus (Lamarck, 1819)
crosseana, Castalia crosseana Hidalgo, 1865 - syn of: Castalia ambigua (Lamarck, 1819)
crossiana, Castalia crossiana Lea, 1870 - syn of: Castalia ambigua (Lamarck, 1819)
cuadrilatera, Castalia cuadrilatera D'Orbigny, 1835 - syn of: Castalia ambigua (Lamarck, 1819)
cuneatus, Paxyodon cuneatus Stutchbury, 1842 † - syn of: Cardinia hybrida (Sowerby, 1817) † (FOSSIL)
decipiens, Diplodon decipiens Ortmann, 1921 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
delli, Cucumerunio websteri delli McMichael & Hiscock
delodontus, Diplodon delodontus (Lamarck, 1819)
delodontus paraguayensis, Diplodon delodontus paraguayensis (Lea, 1866)
delodontus pilsbryi, Diplodon delodontus pilsbryi Marshall, 1928
delodontus wymanii, Diplodon delodontus wymanii Lea, 1860 - syn of: Diplodon wymanii (Lea, 1860)
demarcaraensis, Rhipidodonta demarcaraensis Simone, 2006 - syn of: Rhipidodonta demeraraensis (Lea, 1859)
demeraraensis, Rhipidodonta demeraraensis (Lea, 1859)
depauperata, Echyridella menziesii depauperata Hutton
depressa, Hyridella depressa (Lamarck, 1819)
depressa bega, Rugoshyria depressa bega Iredale, 1943 - syn of: Hyridella depressa (Lamarck, 1819)
depressa lowanna, Rugoshyria depressa lowanna Iredale, 1943 - syn of: Hyridella depressa (Lamarck, 1819)
depressa sodalis, Rugoshyria depressa sodalis Iredale, 1934 - syn of: Hyridella narracanensis Cotton & Gabriel, 1932
depressa vicinalis, Rugoshyria depressa vicinalis Iredale, 1934 - syn of: Hyridella depressa (Lamarck, 1819)
dianensis, Pachycardia dianensis Guo, 1985 † (FOSSIL)
diluvii, Diplodon diluvii (D'Orbigny, 1842) † (FOSSIL)
dockumensis, Antediplodon dockumensis Simpson, 1986 † (FOSSIL)
dolabella, Castalia dolabella Sowerby, 1869 - syn of: Callonaia duprei (Récluz, 1842)
drapeta, Hyridella drapeta Iredale, 1934
dunkerianus, Diplodon dunkerianus Lea, 1857 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
duprei, Callonaia duprei (Récluz, 1842)
ecarinata, Castalia ecarinata Mousson, 1869
ellipticus, Diplodon ellipticus (Spix & Wagner, 1827)
ellipticus santanus, Diplodon ellipticus santanus Ihering, 1910 - syn of: Diplodon besckeanus (Dunker, 1848)
enno, Rhipidodonta rhombea enno Ortmann
enno, Diplodon enno Ortmann, 1921 - syn of: Rhipidodonta rhombea enno Ortmann, 1921
eurhynchus, Diplodon expansus eurhynchus Küster
expansus, Diplodon expansus (Küster, 1853)
expansus, Diplodon expansus Ihering, 1910 - syn of: Diplodon granosus (Bruguière, 1792)
expansus eurhynchus, Diplodon expansus eurhynchus (Küster, 1861)
expansus mimus, Diplodon expansus mimus Simpson, 1914
expansus semigranosus, Diplodon expansus semigranosus Simpson, 1914
faba, Rhipidodonta charruana faba D'Orbigny
fleckeri, Quaesithyria fleckeri Iredale, 1943 - syn of: Velesunio angasi (Sowerby, 1867)
flucki, Diplodon flucki Morrison, 1943
fluctiger, Diplodon fluctiger (Lea, 1859)
flyensis, Westralunio flyensis (Tapparone-Canefri, 1883)
fontaineanus, Diplodon fontaineanus D'Orbigny, 1835 - syn of: Diplodon fontainianus (D'Orbigny, 1835)
fontainianus, Diplodon fontainianus (D'Orbigny, 1835)
fontainianus deceptus, Cyclomya fontainianus deceptus Simpson, 1914 - syn of: Rhipidodonta grata (Lea, 1860)
fortis, Diplodon fortis Marshall, 1917 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
fraus, Diplodon fraus Ihering, 1907 - syn of: Diplodon parallelopipedon (Lea, 1834)
froggatti, Lortiella froggatti Iredale, 1934
funebralis, Rhipidodonta funebralis (Lea, 1834)
garbei, Diplodon garbei Ihering, 1910 - syn of: Rhipidodonta suavidica (Lea, 1856)
glaucus, Diplodon glaucus Uliana & Camacho, 1975 † (FOSSIL)
glenelgensis, Protohyridella glenelgensis (Dennant, 1898)
granosus, Diplodon granosus (Bruguière, 1792)
granosus granuliferus, Diplodon granosus granuliferus (Dunker, 1848)
granuliferus, Diplodon granosus granuliferus Dunker
grata, Rhipidodonta grata (Lea, 1860)
greefianus, Diplodon greefianus Simpson, 1900 - syn of: Diplodon expansus (Küster, 1853)
guaporensis, Diplodon guaporensis Bonetto & Tassara, 1987
guaranianus, Rhipidodonta hylaea guaranianus D'Orbigny
guaranianus fluctiger, Diplodon guaranianus fluctiger Lea, 1859 - syn of: Diplodon fluctiger (Lea, 1859)
guayanensis, Rhipidodonta guayanensis (Haas, 1929)
guppyi, Hyridella guppyi (Smith, 1885)
hanleyana, Castalia hanleyana Sowerby, 1869 - syn of: Castalia ambigua (Lamarck, 1819)
hartwrighti, Diplodon hartwrighti Ihering, 1910 - syn of: Rhipidodonta suavidica (Lea, 1856)
hasemani, Diplodon hasemani Ortmann, 1921 - syn of: Rhipidodonta hylaea (D'Orbigny, 1835)
hemesa, Aparcthyria hemesa Iredale, 1943 - syn of: Velesunio angasi (Sowerby, 1867)
hidalgoi, Diplodon hidalgoi Haas, 1916 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
hildae, Diplodon hildae Ortmann, 1921 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
hochstetteri, Echyridella menziesii hochstetteri Dunker
humilis, Hyria humilis Troschel, 1847 - syn of: Prisodon syrmatophorus (Gmelin, 1791)
huttoni, Velesunio huttoni McMichael, 1957 † (FOSSIL)
hylaea, Rhipidodonta hylaea (D'Orbigny, 1835)
hylaea asuncionis, Rhipidodonta hylaea asuncionis (Marshall, 1922)
hylaea guaranianus, Rhipidodonta hylaea guaranianus (D'Orbigny, 1835)
iheringi, Castalina iheringi Marshall, 0 - syn of: Castalia undosa Von Martens, 1895
iheringi, Diplodon iheringi Simpson, 1914 - syn of: Rhipidodonta burroughiana (Lea, 1834)
iheringi schadei, Schleschiella iheringi schadei Modell, 1950 - syn of: Rhipidodonta hylaea (D'Orbigny, 1835)
imitator, Diplodon imitator Ortmann, 1921 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
indianensis, Diplodon indianensis Wesselingh, 2006 † (FOSSIL)
inflata, Castalia inflata D'Orbigny, 1835
inspecta, Aparcthyria inspecta Iredale, 1943 - syn of: Velesunio angasi (Sowerby, 1867)
jacksoni, Alathyria jacksoni Iredale, 1934
jacksoni, Diplodon jacksoni Marshall, 1928 - syn of: Diplodon ellipticus (Spix & Wagner, 1827)
jacksoni alleni, Alathyria jacksoni alleni Iredale, 1943 - syn of: Alathyria jacksoni Iredale, 1934
jowikolensis, Afrohyrioides jowikolensis (Newton, 1909) † (FOSSIL)
juruana, Castalia ambigua juruana Ihering
juruanus, Tetraplodon juruanus Ihering, 1910 - syn of: Castalia ambigua juruana (Ihering, 1910)
kelseyi, Diplodon kelseyi Baker, 1913 - syn of: Rhipidodonta suavidica (Lea, 1856)
lateriquadrata, Castalia lateriquadrata Sowerby, 1869 - syn of: Castalia ambigua (Lamarck, 1819)
latiquadrata, Castalia latiquadrata Sowerby, 1869 - syn of: Castalia ambigua (Lamarck, 1819)
leai, Diplodon leai Simpson, 1900 - syn of: Diplodon expansus (Küster, 1853)
legrandi, Hyridella legrandi Petterd, 1889 - syn of: Velesunio moretonicus (Reeve, 1865)
lessoni, Diplodon lessoni Suter, 1905 - syn of: Echyridella menziesii (Gray, 1843)
lewisi, Antediplodon lewisi Richards, 1948 † (FOSSIL)
linki, Tetraplodon linki Marshall, 1926 - syn of: Castalia ecarinata Mousson, 1869
locellus, Rhipidodonta variabilis locellus Lea
longulus, Diplodon longulus Conrad, 1874 † (FOSSIL)
lorentzi, Virgus lorentzi Schepman, 1919 - syn of: Hyridella misoolensis (Schepman, 1897)
losadae, Diplodon losadae Haas, 1966
lucasi, Echyridella lucasi (Suter, 1905)
ludovicianum, Diplodon ludovicianum Rochebrune, 1881 - syn of: Trapezoideus exolescens (Gould, 1843)
lujanensis, Diplodon lujanensis Ihering, 1907 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
lutulentus, Hyridella lutulentus Suter, 1913 - syn of: Cucumerunio websteri (Simpson, 1902)
martensi, Castalia martensi (Ihering, 1891)
martensis, Rhipidodonta martensis Simone, 2006 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
mattirolii, Diplodon mattirolii Tapparone-Canefri, 1883 - syn of: Virgus beccarianus (Tapparone-Canefri, 1883)
mckeowni, Velesunio mckeowni Iredale, 1943 - syn of: Velesunio ambiguus (Philippi, 1847)
menziesi lucasi, Hyridella menziesi lucasi Suter, 1905 - syn of: Echyridella lucasi (Suter, 1905)
menziesii, Echyridella menziesii (Gray, 1843)
menziesii acuta, Echyridella menziesii acuta (Suter, 1907)
menziesii depauperata, Echyridella menziesii depauperata (Hutton, 1882)
menziesii hochstetteri, Echyridella menziesii hochstetteri (Dunker, 1862)
menziezi, Hyridella menziezi Simpson, 1900 - syn of: Echyridella menziesii (Gray, 1843)
mimus, Diplodon expansus mimus Simpson
mimus, Diplodon mimus Simpson, 1914 - syn of: Diplodon expansus mimus Simpson, 1914
misoolensis, Hyridella misoolensis (Schepman, 1897)
mogymirim, Diplodon mogymirim Ortmann, 1921 - syn of: Diplodon expansus (Küster, 1853)
moretonicus, Velesunio moretonicus (Reeve, 1865)
morti, Alathyria morti Iredale, 1943 - syn of: Alathyria pertexta Iredale, 1934
mortonicus, Diplodon mortonicus May, 1923 - syn of: Hyridella narracanensis Cotton & Gabriel, 1932
multicosta, Castalia multicosta Hupé, 1857
multicostata, Castalia multicostata Sowerby, 1869 - syn of: Castalia multisulcata Hupé, 1857
multistriatus, Diplodon multistriatus (Lea, 1831)
multistriatus coriaceus, Diplodon multistriatus coriaceus (Dunker, 1848)
multisulcata, Castalia multisulcata Hupé, 1857
narracanensis, Hyridella narracanensis Cotton & Gabriel, 1932
nehringi, Castalina nehringi Ihering, 1891 - syn of: Castalia orbignyi (Deville & Hupé, 1850)
nepeanensis narracanensis, Propehyridella nepeanensis narracanensis Iredale, 1934 - syn of: Hyridella narracanensis Cotton & Gabriel, 1932
novaehollandiae, Cucumerunio novaehollandiae (Gray, 1834)
obliquus, Prisodon obliquus Schmacker, 1896
obsolescens, Diplodon obsolescens Baker, 1914 - syn of: Rhipidodonta suavidica (Lea, 1856)
onekaka, Echyridella onekaka Fenwick & Marshall, 2006
opertanea, Lortiella opertanea Ponder & Bayer, 2003
orbignyana, Castalia orbignyana Deville & Hupé, 1850 - syn of: Castalia orbignyi (Deville & Hupé, 1850)
orbignyi, Castalia orbignyi (Deville & Hupé, 1850)
orbygnyi, Castaliella sulcata orbygnyi Hupé & Deville
orinocensis, Castalia orinocensis Morrison, 1943 - syn of: Castalia stevensi (Baker, 1930)
ovata, Velesunio ovata (Haas, 1910)
pacus, Rhipidodonta pacus Simone, 2006 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
panco, Diplodon panco Ihering, 1910 - syn of: Diplodon besckeanus (Dunker, 1848)
paraguayensis, Diplodon delodontus paraguayensis Lea
parallelipipedon, Diplodon parallelipipedon Lea, 1834 - syn of: Diplodon parallelopipedon (Lea, 1834)
parallelopipedon, Diplodon parallelopipedon (Lea, 1834)
parallepipedion, Diplodon parallepipedion Lea, 1834 - syn of: Diplodon parallelopipedon (Lea, 1834)
paranensis, Diplodon paranensis Lea, 1834 - syn of: Rhipidodonta variabilis (Maton, 1811)
parodizi, Diplodon parodizi Bonetto, 1962
patagonica, Diplodon chilensis patagonica D'Orbigny
pazi, Castalia pazi Hidalgo, 1868 - syn of: Rhipidodonta hylaea (D'Orbigny, 1835)
pectinatum, Tetraplodon pectinatum Spix, 1827 - syn of: Castalia ambigua (Lamarck, 1819)
peiropolensis, Florenceia peiropolensis Mezzalira, 1974 † (FOSSIL)
peraeformis, Rhipidodonta charruana peraeformis Lea
peraeformis, Diplodon peraeformis Lea, 1860 - syn of: Rhipidodonta charruana peraeformis (Lea, 1860)
perfragilis, Diplodon perfragilis Marshall, 1923 - syn of: Rhipidodonta variabilis (Maton, 1811)
perplexus, Diplodon perplexus Simpson, 1914 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
pertexta, Alathyria pertexta Iredale, 1934
pertexta magnifica, Alathyria pertexta magnifica McMichael & Hiscock, 1958 - syn of: Alathyria pertexta Iredale, 1934
pfeifferi, Diplodon pfeifferi Dunker, 1848 - syn of: Diplodon multistriatus (Lea, 1831)
pilsbryi, Diplodon delodontus pilsbryi Marshall
pilsbryi, Diplodon pilsbryi Marshall, 1928 - syn of: Diplodon delodontus pilsbryi Marshall, 1928
podagrosus, Diplodon podagrosus Marshall, 1923 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
ponderosus, Paxyodon ponderosus Schumacher, 1817 - syn of: Prisodon syrmatophorus (Gmelin, 1791)
profuga, Alathyria profuga (Gould, 1850)
pruinoides, Rhipidodonta pruinoides Simone, 2006 - syn of: Rhipidodonta funebralis (Lea, 1834)
psammoica, Castalia psammoica (D'Orbigny, 1835)
quadrata, Castalia quadrata Sowerby, 1869 - syn of: Castaliella sulcata (Krauss, 1849)
quadrilatera, Castalia ambigua quadrilatera D'Orbigny
quadrilatera, Castalia quadrilatera D'Orbigny, 1835 - syn of: Castalia ambigua quadrilatera D'Orbigny, 1835
renutus, Hyridunio renutus Iredale, 1934 - syn of: Hyridella drapeta Iredale, 1934
retusa, Castalia retusa Hupé, 1857 - syn of: Castalia ambigua (Lamarck, 1819)
rhombea, Rhipidodonta rhombea (Spix & Wagner, 1827)
rhombea enno, Rhipidodonta rhombea enno Ortmann, 1921
rhuacoicus, Diplodon rhuacoicus (D'Orbigny, 1835)
rotundatus, Diplodon rotundatus Lucena, 1951 - syn of: Rhipidodonta rhombea (Spix & Wagner, 1827)
rotundum, Diplodon rotundum Spix & Wagner, 1827 - syn of: Rhipidodonta rhombea (Spix & Wagner, 1827)
rotundus gratus, Diplodon rotundus gratus Lea, 1860 - syn of: Rhipidodonta grata (Lea, 1860)
rugata, Lortiella rugata (Sowerby, 1868)
rugosa, Pachycardia rugosa (Hauer, 1857) † (FOSSIL)
sanctamariae, Diplodon sanctamariae Quintana, 1982 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
santamariae, Diplodon santamariae Simpson, 1914 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
schombergiana, Castalia schombergiana Sowerby, 1869 - syn of: Castaliella sulcata (Krauss, 1849)
selwyni, Alathyria selwyni Iredale, 1943 - syn of: Alathyria jacksoni Iredale, 1934
semigranosus, Diplodon expansus semigranosus Simpson
semigranosus, Diplodon semigranosus Simpson, 1914 - syn of: Diplodon expansus semigranosus Simpson, 1914
sentaniensis, Velesunio sentaniensis (Haas, 1924)
shuttleworthi, Velesunio shuttleworthi Iredale, 1934 - syn of: Velesunio moretonicus (Reeve, 1865)
simillimus, Diplodon simillimus Ortmann, 1921 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
smithi, Cyclomya smithi Marshall, 1926 - syn of: Diplodon delodontus (Lamarck, 1819)
solidulus, Diplodon solidulus (Philippi, 1869)
stevensi, Castalia stevensi (Baker, 1930)
suavidica, Rhipidodonta suavidica (Lea, 1856)
subcylindricus, Diplodon subcylindricus Marshall, 1922 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
subquadratus, Diplodon subquadratus Marshall, 1922 - syn of: Rhipidodonta variabilis (Maton, 1811)
subrugosa, Pachycardia subrugosa Vukhuc, 1965 † (FOSSIL)
sulcata, Castaliella sulcata (Krauss, 1849)
sulcata nerhingi, Castalia sulcata nerhingi Bonetto, 1965 - syn of: Castalia orbignyi (Deville & Hupé, 1850)
sulcata orbygnyi, Castaliella sulcata orbygnyi (Hupé & Deville, 1850)
suppositus, Diplodon suppositus Simpson, 1914 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
symatophorus, Paxyodon symatophorus Simone, 2006 - syn of: Prisodon syrmatophorus (Gmelin, 1791)
syrmatophorus, Prisodon syrmatophorus (Gmelin, 1791)
syrmatophorus complanatus, Prisodon syrmatophorus complanatus Hupé, 1857 - syn of: Prisodon syrmatophorus (Gmelin, 1791)
transitus, Velesunio transitus Iredale, 1943 - syn of: Velesunio ambiguus (Philippi, 1847)
trivialis, Diplodon trivialis Simpson, 1914 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
trivialoides, Diplodon trivialoides Marshall, 1922 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
truncatus, Prisodon truncatus Schumacher, 1817 - syn of: Castalia ambigua (Lamarck, 1819)
turgida, Castalia turgida Hupé, 1857 - syn of: Castalia ambigua (Lamarck, 1819)
undosa, Castalia undosa Von Martens, 1895
vadena, Alathyria vadena Iredale, 1943 - syn of: Alathyria profuga (Gould, 1850)
variabilis, Rhipidodonta variabilis (Maton, 1811)
variabilis funebralis, Rhipidodonta variabilis funebralis Lea, 1834 - syn of: Rhipidodonta funebralis (Lea, 1834)
variabilis locellus, Rhipidodonta variabilis locellus (Lea, 1859)
vicarius, Diplodon vicarius Ortmann, 1921 - syn of: Rhipidodonta charruana (D'Orbigny, 1835)
voltzi, Diplodon voltzi Vernhout, 1914
wagnerianus, Diplodon wagnerianus Simpson, 1900 - syn of: Diplodon ellipticus (Spix & Wagner, 1827)
wardi, Quaesithyria wardi Iredale, 1943 - syn of: Alathyria pertexta Iredale, 1934
websteri, Cucumerunio websteri (Simpson, 1902)
websteri delli, Cucumerunio websteri delli McMichael & Hiscock, 1958
wheatleyanus, Rhipidodonta burroughiana wheatleyanus Lea
wilsonii, Velesunio wilsonii (Lea, 1859)
wilsonii, Centralhyria wilsonii Iredale, 1934 - syn of: Alathyria pertexta Iredale, 1934
wymanii, Diplodon wymanii (Lea, 1860)
wymanii apprimus, Diplodon wymanii apprimus (Lea, 1866)
wymanii uruguayensis, Diplodon wymanii uruguayensis Lea, 1860 - syn of: Diplodon wymanii (Lea, 1860)
yaguaronis, Diplodon yaguaronis Marshall, 1930 - syn of: Diplodon rhuacoicus (D'Orbigny, 1835)
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