- Euhadra, Genus Euhadra H.A. Pilsbry, 1890 (BRADYBAENIDAE)
- Euhaliotis, syn of: Genus Haliotis C. Linnaeus, 1758 (HALIOTIDAE)
- Euhemihoplites, Genus Euhemihoplites Collignon, 1964 † (LABECERATIDAE) (FOSSIL)
- euholostoma, Reinia euholostoma (H.A. Pilsbry, 1901) - (CLAUSILIIDAE)
- euholostoma kyushuensis, Reinia euholostoma kyushuensis (J.T. Kuroda, 1935) - (CLAUSILIIDAE)
- Euhomaloceras, Genus Euhomaloceras Spath , 1926 † (BACULITIDAE) (FOSSIL)
- Euhoplites, Genus Euhoplites Spath, 1925 † (HOPLITIDAE) (FOSSIL)
- Euhoploceras, Subgenus Sonninia (Euhoploceras) Westermann, 1969 † (SONNINIIDAE) (FOSSIL)
- Euhyalina, syn of: Genus Oxychilus L.I. Fitzinger, 1833 (OXYCHILIDAE)
- Euhyalinia, syn of: Genus Oxychilus L.I. Fitzinger, 1833 (OXYCHILIDAE)
- Euhystrichoceras, Genus Euhystrichoceras Spath , 1923 † (BRANCOCERATIDAE) (FOSSIL)
- Euiberus, syn of: Genus Iberus P.D. Montfort, 1810 (HELICIDAE)
- Euisculites, Genus Euisculites Spath, 1951 † (TROPITIDAE) (FOSSIL)
- Eukashmirites, Genus Eukashmirites Kummel, 1969 (XENOCELTITIDAE) (FOSSIL)
- Eukeraspis, Genus Eukeraspis Lankester , 1870 † (CEPHALASPIDAE) (FOSSIL)
- eukhonikhe, Elaphriella eukhonikhe Vilvens & Williams, 2016 - (SOLARIELLIDAE)
- Eukteanochiton, Genus Eukteanochiton Vendrasco & Runnegar, 2004 † (MATTHEVIIDAE) (FOSSIL)
- eukyrtos, Pelycidion eukyrtos L.D. Stephens & P. Vafiadis, 2013 - (PELYCIDIIDAE)
- Eula, Genus Eula Kadolsky, 1973 † (LITTORINIDAE) (FOSSIL)
- Eulachychiton, Genus Eulachychiton † (NEOLORICATA (unassigned)) (FOSSIL)
- eulactea, Pugilina eulactea A. Dey, 1961 † - (MELONGENIDAE) (FOSSIL)
- eulaliae, Humboldtiana eulaliae A. Metcalf, 1983 - (HUMBOLDTIANIDAE)
- eulasia, Murella scabriuscula eulasia (C.A. Westerlund, 1889) - (HELICIDAE)
- eulemnisca, Bradybaena eulemnisca T.D.A. Cockerell, 1924 - syn of: Karaftohelix middendorffi (G. Gerstfeldt, 1859) - (BRADYBAENIDAE)
- Eulepetopsis, Genus Eulepetopsis J.H. McLean, 1990 (NEOLEPETOPSIDAE)
- Euleptochiton, Genus Euleptochiton Hoare & Mapes, 1985 † (NEOLORICATA (unassigned)) (FOSSIL)
- Eulerema, Subgenus Solariorbis (Eulerema) H.A. Pilsbry & A.A. Olsson, 1952 (TORNIDAE)
- Euliginella, syn of: Genus Cystiscus W. Stimpson, 1865 (CYSTISCIDAE)
- Eulima, Genus Eulima A. Risso, 1826 (EULIMIDAE)
- eulima, Raphidiella eulima (R.T. Lowe, 1854) - (FERUSSACIIDAE)
- eulima, Marginella eulima W.H. Dall, 1892 - syn of: Prunum roscidum J.H. Redfield, 1860 - (MARGINELLIDAE)
- eulima, Striatestea eulima A.W.B. Powell, 1940 - (RISSOIDAE)
- Eulimastoma, Subgenus Odostomia (Eulimastoma) P. Bartsch, 1904 (PYRAMIDELLIDAE)
- Eulimastra, syn of: Genus Melanella T.E. Bowdich, 1822 (EULIMIDAE)
- eulimata, Neptunea eulimata (W.H. Dall, 1907) - (BUCCINIDAE)
- Eulimatta, syn of: Genus Eulima A. Risso, 1826 (EULIMIDAE)
- Eulimaustra, syn of: Genus Melanella T.E. Bowdich, 1822 (EULIMIDAE)
- Eulimax, syn of: Genus Limax C. Linnaeus, 1758 (LIMACIDAE)
- eulimella, Cerithiella eulimella A.W.B. Powell, 1958 - (NEWTONIELLIDAE)
- Eulimella, Genus Eulimella E. Forbes & M' Andrew, 1846 (PYRAMIDELLIDAE)
- eulimelloides, Nodostoma eulimelloides Wood, 1882 † - (PYRAMIDELLIDAE) (FOSSIL)
- eulimelloides, Ptycheulimella eulimelloides (S. Nomura, 1936) - (PYRAMIDELLIDAE)
- eulimellula, Pyrgula eulimellula (W. Dybowski & J.G. Grochmalicki, 1915) - (HYDROBIIDAE)
- Eulimene, Genus Eulimene Wood, 1872 † (LITTORINIDAE) (FOSSIL)
- eulimenes, Pleurotomella eulimenes (J.C. Melvill, 1904) - (RAPHITOMIDAE)
- eulimenes, Daphnella eulimenes J.C. Melvill, 1904 - syn of: Pleurotomella eulimenes (J.C. Melvill, 1904) - (RAPHITOMIDAE)
- Eulimetta, Genus Eulimetta A. Warén, 1992 (EULIMIDAE)
- EULIMIDAE Philippi, 1853 - Family (GASTROPODA-CAENOGASTROPODA-LITTORINIMORPHA)
- Eulimitoma, syn of: Genus Eulitoma C.F. Laseron, 1955 (EULIMIDAE)
- Eulimitra, syn of: Genus Hemiliostraca H.A. Pilsbry, 1917 (EULIMIDAE)
- Eulimneus, syn of: Genus Lymnaea J.B.P.A. Lamarck, 1801 (LYMNAEIDAE)
- Eulimoda, syn of: Genus Sabinella T.A. de M. Monterosato, 1890 (EULIMIDAE)
- eulimoides, Columbella eulimoides W.H. Turton, 1932 - syn of: Impages apicitincta (G.B. III Sowerby, 1900) - (COLUMBELLIDAE)
- eulimoides, Noerrevangia eulimoides S.C.T. Hanley, 1844 - syn of: Noerrevangia fragilis A. Warén & C.F.C. Schander, 1993 - (CORNIROSTRIDAE)
- eulimoides, Melanella eulimoides (C.B. Adams, 1850) - (EULIMIDAE)
- eulimoides, Nozeba eulimoides (A.E.M. Cossmann, 1888 †) - (IRAVADIIDAE) (FOSSIL)
- eulimoides, Ebala eulimoides M. Fekih, 1969 - (MURCHISONELLIDAE)
- eulimoides, Aphanoptyxis eulimoides (Lycett, 1863) † - (OPISTHOBRANCHIA (unassigned)) (FOSSIL)
- eulimoides, Brachystomia eulimoides (S.C.T. Hanley, 1844) - (PYRAMIDELLIDAE)
- eulimoides, Eulimella eulimoides (S. Nomura, 1936) - (PYRAMIDELLIDAE)
- eulimoides, Odostomia eulimoides J.G. Jeffreys, 1847 - syn of: Megastomia conoidea (G.B. Brocchi, 1814) - (PYRAMIDELLIDAE)
- eulimoides, Rissoina eulimoides A. Adams, 1854 - (RISSOINIDAE)
- eulimoides alba, Odostomia eulimoides alba J.G. Jeffreys, 1848 - syn of: Brachystomia scalaris (W. Macgillivray, 1843) - (PYRAMIDELLIDAE)
- eulimopsis, Melanopsis eulimopsis Š. Brusina, 1902 † - (MELANOPSIDAE) (FOSSIL)
- Eulimostraca, Genus Eulimostraca P. Bartsch, 1917 (EULIMIDAE)
- eulita, Epitonium eulita (W.H. Dall & C.T. Simpson, 1901) - (EPITONIIDAE)
- Eulithidium, Genus Eulithidium H.A. Pilsbry, 1898 (PHASIANELLIDAE)
- Eulitoma, Genus Eulitoma C.F. Laseron, 1955 (EULIMIDAE)
- eulkaiensis, Platyzona eulkaiensis (Reed, 1927 †) - (GONIASMATIDAE) (FOSSIL)
- eulo, Jardinella eulo W.F. Ponder & K.B. Clark, 1990 - (HYDROBIIDAE)
- euloides, Cadulus euloides J.C. Melvill & R. Standen, 1901 - (GADILIDAE)
- Eulomacoceras, Genus Eulomacoceras Zhao & al., 1978 † (TAINOCERATIDAE) (FOSSIL)
- Eulophoceras, Genus Eulophoceras Hyatt , 1903 † (SPHENODISCIDAE) (FOSSIL)
- Eulopia, syn of: Genus Myrtea W.H. Turton, 1822 (LUCINIDAE)
- Eulota, syn of: Genus Bradybaena H.H. Beck, 1837 (BRADYBAENIDAE)
- Eulotella, syn of: Genus Bradybaena H.H. Beck, 1837 (BRADYBAENIDAE)
- Euloxa, Genus Euloxa Conrad, 1862 † (EULOXIDAE) (FOSSIL)
- EULOXIDAE Gardner, 1943 † - Family (BIVALVIA-HETERODONTA-ARCHIHETERODONTA-CARDIIDA) (FOSSIL)
- Euloxoceras, Genus Euloxoceras Miller & al., 1933 † (SPYROCERATIDAE) (FOSSIL)
- eulyratus, Bractechlamys eulyratus F.M. Bayer, 1943 - syn of: Antillipecten antillarum (C.A. Récluz, 1853) - (PECTINIDAE)
- eulyratus, Lyropecten eulyratus F.M. Bayer, 1943 - syn of: Antillipecten antillarum (C.A. Récluz, 1853) - (PECTINIDAE)
- eulyratus, Lyropecten eulyratus Bayer, 1943 - syn of: Antillipecten antillarum (C.A. Récluz, 1853) - (PECTINIDAE)
- eulyratus, Pecten eulyratus Bayer, 1943 - syn of: Antillipecten antillarum (C.A. Récluz, 1853) - (PECTINIDAE)
- Eulytoceras, syn of: Genus Lytoceras Monestier, 1921 † (LYTOCERATIDAE) (FOSSIL)
- Eumarcia, Genus Eumarcia T. Iredale, 1924 (VENERIDAE)
- eumares, Cyclostrema eumares J.C. Melvill, 1904 - (LIOTIIDAE)
- Eumargarita, syn of: Genus Margarites J.E. Gray, 1847 (MARGARITIDAE)
- eumeces, Anadara eumeces W.P. Woodring, 1973 † - (ARCIDAE) (FOSSIL)
- eumeces, Albinaria turrita eumeces (O. Böttger, 1889) - (CLAUSILIIDAE)
- Eumecostylus, Subgenus Placostylus (Eumecostylus) J.A. Albers, 1860 (BOTHRIEMBRYONTIDAE)
- Eumedlicottia, Genus Eumedlicottia Spath , 1934 † (MEDLICOTTIIDAE) (FOSSIL)
- eumegetha, Euphaedusa eumegetha P.B. Schmacker & O. Böttger, 1891 - (CLAUSILIIDAE)
- eumekes, Austropyrgus eumekes A. Clark, W.B. Miller & W.F. Ponder, 2003 - (HYDROBIIDAE)
- eumekes, Siratus eumekes E.H. Vokes, 1989 † - (MURICIDAE) (FOSSIL)
- Eumelania, syn of: Genus Melanoides G.A. Olivier, 1804 (THIARIDAE)
- eumelas, Siphonaria eumelas T. Iredale, 1940 - syn of: Siphonaria laciniosa (C. Linnaeus, 1758) - (SIPHONARIIDAE)
- Eumelus, syn of: Genus Philomycus C.S. Rafinesque, 1820 (PHILOMYCIDAE)
- eumena, Pergamidia eumena Bittner, 1891 † - (PERGAMIDIIDAE) (FOSSIL)
- eumenes, Trishoplita eumenes (C.A. Westerlund, 1883) - (BRADYBAENIDAE)
- eumenes, Pyrgiscus eumenes (J.C. Melvill, 1910) - (PYRAMIDELLIDAE)
- eumenes bipartita, Trishoplita eumenes bipartita H.A. Pilsbry, 1901 - (BRADYBAENIDAE)
- eumenes cretacea, Trishoplita eumenes cretacea G.P.L.K. Gude, 1900 - (BRADYBAENIDAE)
- eumenes decussata, Trishoplita eumenes decussata G.P.L.K. Gude, 1900 - (BRADYBAENIDAE)
- eumenes pergranosa, Trishoplita eumenes pergranosa H.A. Pilsbry & Y. Hirase, 1908 - (BRADYBAENIDAE)
- Eumenis, syn of: Genus Lomanotus J.B. Vérany, 1844 (LOMANOTIDAE)
- eumerista, Eucithara eumerista (J.C. Melvill & R. Standen, 1896) - (MANGELIIDAE)
- Eumeta, syn of: Genus Eumetula K.H.J. Thiele, 1912 (NEWTONIELLIDAE)
- Eumetadrillia, Genus Eumetadrillia W.P. Woodring, 1928 (DRILLIIDAE)
- eumetrum, Cycloscala eumetrum W.P. Woodring, 1928 † - (EPITONIIDAE) (FOSSIL)
- Eumetula, Genus Eumetula K.H.J. Thiele, 1912 (NEWTONIELLIDAE)
- EUMETULIDAE - syn of Family: NEWTONIELLIDAE
- eumicra, Acteocina eumicra (J.C.H. Crosse, 1865) - (ACTEOCINIDAE)
- eumicra, Pomacea eumicra J.C.H. Crosse & P.H. Fischer, 1890 - syn of: Pomacea flagellata (T. Say, 1829) - (AMPULLARIIDAE)
- eumicra, Bulla eumicra J.C.H. Crosse in J.C.H. Crosse & P.H. Fischer, 1865 - syn of: Acteocina eumicra (J.C.H. Crosse, 1865) - (BULLIDAE)
- eumicra, Clausilia eumicra J.R. Bourguignat, 1877 - syn of: Clausilia rugosa parvula A.E.J. Férussac, 1807 - (CLAUSILIIDAE)
- eumicra, Retusa eumicra J.C.H. Crosse in J.C.H. Crosse & P.H. Fischer, 1865 - syn of: Acteocina eumicra (J.C.H. Crosse, 1865) - (RETUSIDAE)
- eumicrum, Carychiella eumicrum (J.R. Bourguignat, 1857 †) - (ELLOBIIDAE) (FOSSIL)
- eumicrum peneckei, Carychiella eumicrum peneckei (K. Flach, 1890 †) - (ELLOBIIDAE) (FOSSIL)
- eumicrum unidentata, Carychiella eumicrum unidentata (Kókay, 2006 †) - (ELLOBIIDAE) (FOSSIL)
- Eumilax, Genus Eumilax O. Böttger, 1881 (LIMACIDAE)
- eumita, Thysanota eumita E.R. Sykes, 1898 - (CHAROPIDAE)
- eumita, Glycymeris eumita C.J. Maury, 1924 † - (GLYCYMERIDIDAE) (FOSSIL)
- Eumitra, Genus Eumitra R. Tate, 1889 (MITRIDAE)
- eumitus, Conus eumitus J.R. le B. Tomlin, 1926 - syn of: Cylinder textile (C. Linnaeus, 1758) - (CONIDAE)
- Eumodiolus, syn of: Genus Modiolus J.B.P.A. Lamarck, 1799 (MYTILIDAE)
- Eumontrouziera, syn of: Genus Montrouzieria S.M. Souverbie in S.M. Souverbie & R.P. Montrouzier, 1863 (SEMELIDAE)
- eumorpha, Volvarina eumorpha (J.C. Melvill, 1906) - (MARGINELLIDAE)
- eumorpha, Lodderia eumorpha (H.H. Suter, 1908) - (SKENEIDAE)
- eumorpha cookiana, Lodderia eumorpha cookiana (R.K. Dell, 1952) - (SKENEIDAE)
- eumorphia, Anodonta eumorphia J.R. Bourguignat, 1881 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- Eumorphoceras, Genus Eumorphoceras Girty , 1909 † (GIRTYOCERATIDAE) (FOSSIL)
- Eumorphotis, Genus Eumorphotis Bittner, 1901 † (HETEROPECTINIDAE) (FOSSIL)
- eumorphus, Enixotrophon eumorphus (B.A. Marshall & R. Houart, 2011) - (MURICIDAE)
- Eumulleria, syn of: Genus Acostaea A.V.M.D. D'Orbigny, 1851 (ETHERIIDAE)
- eumyarius, Genaxinus eumyarius (M. Sars, 1870 †) - (THYASIRIDAE) (FOSSIL)
- eumyarius, Axinulus eumyarius (M. Sars, 1870 †) - syn of: Genaxinus eumyarius (M. Sars, 1870 †) - (THYASIRIDAE) (FOSSIL)
- Eumytilus, syn of: Genus Mytilus C. Linnaeus, 1758 (MYTILIDAE)
- Eunatica, syn of: Genus Eunaticina P. Fischer, 1885 (NATICIDAE)
- Eunaticina, Genus Eunaticina P. Fischer, 1885 (NATICIDAE)
- Eunema, Genus Eunema Salter, 1859 † (LOPHOSPIRIDAE) (FOSSIL)
- EUNEMOPSIDAE Bandel, 2010 † - Family (GASTROPODA-VETIGASTROPODA) (FOSSIL)
- Eunemopsis, Genus Eunemopsis Kittl, 1891 † (EUNEMOPSIDAE) (FOSSIL)
- Eunerinea, Genus Eunerinea Cox, 1949 † (NERINELLIDAE) (FOSSIL)
- Euneritella, syn of: Genus Helicina J.B.P.A. Lamarck, 1799 (HELICINIDAE)
- Eungarion, Genus Eungarion J. Stanisic, 1993 (HELICARIONIDAE)
- eunice, Dosinia eunice A. Adams, 1856 - syn of: Dosinia pubescens (R.A. Philippi, 1847) - (VENERIDAE)
- Euninella, Subgenus Tectariopsis (Euninella) B.C. Cotton, 1939 (TURBINIDAE)
- eunoi, Caecum eunoi I. Nofroni, M. Pizzini & M. Oliverio, 1997 - (CAECIDAE)
- Eunucula, syn of: Genus Nuculoma T. Iredale, 1931 (NUCULIDAE)
- euodon, Argna bielzi euodon (C.A. Westerlund, 1887) - (ARGNIDAE)
- euomphala, Satsuma myomphala euomphala H.A. Pilsbry & Y. Hirase, 1908 - (CAMAENIDAE)
- euomphala, Bajarunia euomphala (Keyserling, 1845 †) - (MEEKOCERATIDAE) (FOSSIL)
- euomphala, Gibbula euomphala (R.A. Philippi, 1836 †) - (TROCHIDAE) (FOSSIL)
- Euomphalia, Genus Euomphalia C.A. Westerlund, 1889 (HYGROMIIDAE)
- EUOMPHALIDAE White, 1877 † - Family (GASTROPODA-EOGASTROPODA-EUOMPHALINA) (FOSSIL)
- euomphalides, Solarium euomphalides d'Archiac & Haime, 1854 † - syn of: Tornia euomphalides (d'Archiac & Haime, 1854 †) - (ARCHITECTONICIDAE) (FOSSIL)
- euomphalides, Tornia euomphalides (d'Archiac & Haime, 1854 †) - (KIRSOCERATIDAE) (FOSSIL)
- EUOMPHALINA (UNASSIGNED) - Family (GASTROPODA-EOGASTROPODA-EUOMPHALINA) (FOSSIL)
- Euomphaloceras, Genus Euomphaloceras Spath , 1923 † (ACANTHOCERATIDAE) (FOSSIL)
- euomphalodes, Helminthoglypta euomphalodes S.S. Berry, 1938 - (HELMINTHOGLYPTIDAE)
- EUOMPHALOIDEA (UNASSIGNED) - Family (GASTROPODA-EOGASTROPODA-EUOMPHALINA) (FOSSIL)
- euomphaloides, Bicarina euomphaloides (Spitz, 1907 †) - (GOSSELETINIDAE) (FOSSIL)
- euomphaloides, Platyostoma euomphaloides J.W. Hall, 1879 † - (PLATYCERATIDAE) (FOSSIL)
- euomphaloides, Platyceras euomphaloides (McCoy) † - (PLATYCERATIDAE) (FOSSIL)
- euomphaloides, Turbo euomphaloides † - (TURBINIDAE) (FOSSIL)
- Euomphalopsis, Genus Euomphalopsis Ulrich & al., 1931 † (EUOMPHALIDAE) (FOSSIL)
- Euomphalopterus, Genus Euomphalopterus Roemer, 1876 † (EUOMPHALIDAE) (FOSSIL)
- euomphalum, Euomphaloceras euomphalum (Sharpe, 1855 †) - (ACANTHOCERATIDAE) (FOSSIL)
- euomphalus, Cirsostylus euomphalus (F.A. von Quenstedt, 1856 †) - (ARCHAEOGASTROPODA (unassigned)) (FOSSIL)
- Euomphalus, syn of: Genus Heliacus D'Orbigny, 1842 (ARCHITECTONICIDAE)
- Euomphalus, Genus Euomphalus Sowerby, 1814 † (EUOMPHALIDAE) (FOSSIL)
- euomphalus, Bicarina euomphalus (F. Sandberger, 1853 †) - (GOSSELETINIDAE) (FOSSIL)
- euomphalus, Arfurtia euomphalus F. Sandberger, 1853 † - syn of: Bicarina euomphalus (F. Sandberger, 1853 †) - (GOSSELETINIDAE) (FOSSIL)
- euomphalus, Graecamnicola euomphalus (A. Fuchs, 1877 †) - (HYDROBIIDAE) (FOSSIL)
- euomphalus, Planorbarius euomphalus J. de C. Sowerby, 1816 † - (PLANORBIDAE) (FOSSIL)
- euomphalus, Polyptychites euomphalus A. von Koenen, 1902 † - syn of: Pseudoeuryptychites pavlovi Voronets, 1962 † - (POLYPTYCHITIDAE) (FOSSIL)
- Euonyma, Genus Euonyma J.C. Melvill & J.H. Ponsonby, 1896 (SUBULINIDAE)
- Euostrea, Subgenus Ostrea (Euostrea) Douvillé, 1920 † (OSTREIDAE) (FOSSIL)
- Euostrea, syn of: Genus Ostrea C. Linnaeus, 1758 (OSTREIDAE)
- Eupachydiscus, Genus Eupachydiscus Spath , 1922 † (PACHYDISCIDAE) (FOSSIL)
- Eupala, Subgenus Bellamya (Eupala) E. Darteville, 1953 (VIVIPARIDAE)
- Eupalaina, syn of: Genus Adelopoma A. Doering, 1884 (DIPLOMMATINIDAE)
- eupalotina, Cernuella eupalotina J.R. Bourguignat in É.A.A. Locard, 1894 - syn of: Cernuella neglecta (J.P.R. Draparnaud, 1805) - (HYGROMIIDAE)
- Eupaludestrina, syn of: Genus Hydrobia J.D.W. Hartmann, 1821 (HYDROBIIDAE)
- Euparmacella, syn of: Genus Parmacella Couvier, 1804 (PARMACELLIDAE)
- Euparthenia, Subgenus Kleinella (Euparthenia) K.H.J. Thiele, 1931 (PYRAMIDELLIDAE)
- euparypha, Clavatula euparypha J. Gardner, 1937 † - (CLAVATULIDAE) (FOSSIL)
- Euparypha, Genus Euparypha J.D.W. Hartmann, 1843 (HELICIDAE)
- eupatagonicus, Chlamys eupatagonicus H.F.A. von Ihering, 1907 † - (PECTINIDAE) (FOSSIL)
- eupator, Trochus eupator Laube, 1869 † - syn of: Tylotrochus semipunctatus (A. Braun, 1841 †) - (TROCHIDAE) (FOSSIL)
- Eupatorina, Genus Eupatorina Akhvlediani, 1970 † (CARDIIDAE) (FOSSIL)
- eupatrides, Fissidentalium eupatrides (J.C. Melvill & R. Standen, 1907) - (DENTALIIDAE)
- eupelina, Anodonta eupelina G. Servain, 1885 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- eupellucida, Turbonilla eupellucida S. Nomura, 1937 - (PYRAMIDELLIDAE)
- Eupera, Genus Eupera J.R. Bourguignat, 1854 (SPHAERIIDAE)
- euphacodes, Xerocrassa euphacodes (H. von Maltzan, 1883) - (HYGROMIIDAE)
- Euphaedusa, Genus Euphaedusa O. Böttger, 1877 (CLAUSILIIDAE)
- euphaeus, Hippeutis euphaeus J.R. Bourguignat, 1864 - syn of: Hippeutis complanatus (C. Linnaeus, 1758) - (PLANORBIDAE)
- euphanes, Neodrillia euphanes J.C. Melvill, 1923 - syn of: Buchema interstrigata (Smith, 1882) - (DRILLIIDAE)
- euphanes, Fluxinella euphanes B.A. Marshall, 1991 - (SEGUENZIIDAE)
- Euphemia, syn of: Genus Helicodonta A.E.J. Férussac in A. Risso, 1826 (HELICODONTIDAE)
- Euphemitella, Genus Euphemitella † (BELLEROPHONTIDA (unassigned)) (FOSSIL)
- Euphemites, Genus Euphemites Warthin, Jr., 1930 † (EUPHEMITIDAE) (FOSSIL)
- EUPHEMITIDAE Knight, 1956 † - Family (GASTROPODA-BELLEROPHONTIDA) (FOSSIL)
- Euphemitopsis, Genus Euphemitopsis Yochelson, 1960 † (EUPHEMITIDAE) (FOSSIL)
- euphemoides, Kokenospira euphemoides Reed, 1921 † - (BUCANIIDAE) (FOSSIL)
- Euphemus, syn of: Genus Euphemites Warthin, Jr., 1930 † (EUPHEMITIDAE) (FOSSIL)
- Euphenax, Genus Euphenax Cox, 1931 † (MALLEIDAE) (FOSSIL)
- Euphira, syn of: Genus Iridina Lamarck, 1819 (IRIDINIDAE)
- euphorca, Cernuella euphorca J.R. Bourguignat, 1864 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- euphorcella, Xerosecta euphorcella (J. Péchaud in J.R. Bourguignat, 1887) - (HYGROMIIDAE)
- euphorcella menzeliana, Xerosecta euphorcella menzeliana (P.M. Pallary, 1920) - (HYGROMIIDAE)
- euphorcella youssiana, Xerosecta euphorcella youssiana (P.M. Pallary, 1927) - (HYGROMIIDAE)
- Euphrata, syn of: Genus Anodonta J.B.P.A. Lamarck, 1799 (UNIONIDAE)
- euphratensis, Praehyalocylis euphratensis M.A. Avnimelech, 1945 - syn of: Hyalocylis striata (P.C.A.S.L. Rang, 1828) - (CAVOLINIIDAE)
- euphratica, Lymnaea euphratica (A. Mousson, 1874) - (LYMNAEIDAE)
- euphratica, Neritina euphratica A. Mousson, 1874 - (NERITIDAE)
- euphratica, Sphaerium euphratica J.B.P.A. Lamarck, 1806 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (SPHAERIIDAE)
- euphratica, Pseudodontopsis euphratica (J.R. Bourguignat, 1852) - (UNIONIDAE)
- euphraticus, Gyraulus euphraticus (A. Mousson, 1874) - (PLANORBIDAE)
- euphraticus, Pupoides euphraticus J.R. Bourguignat, 1876 - syn of: Pupoides coenopictus (F.W. Hutton, 1834) - (PUPILLIDAE)
- euphrosina, Lolidona euphrosina A. Risso, 1854 - syn of: Histioteuthis bonnellii (A.E.J. Férussac, 1835) - (HISTIOTEUTHIDAE)
- euphrosinae, Melanopsis euphrosinae (Cobalcescu, 1883 †) - (MELANOPSIDAE) (FOSSIL)
- euphrosine, Alvania euphrosine C. De Stefani & D. Pantanelli in C. De Stefani, 1888 † - (RISSOIDAE) (FOSSIL)
- euphrosyne, Chloritis euphrosyne (E.A. Smith, 1895) - (CAMAENIDAE)
- euphrosyne, Helix euphrosyne E.A. Smith, 1895 - syn of: Chloritis euphrosyne (E.A. Smith, 1895) - (HELICIDAE)
- euphrosyne, Charitodoron euphrosyne J.R. le B. Tomlin, 1932 - syn of: Charitodoron barbara (K.H.J. Thiele, 1925) - (MITRIDAE)
- euphrosyne, Daphnella euphrosyne J.C. Melvill & R. Standen, 1903 - (RAPHITOMIDAE)
- Euphurus, syn of: Genus Limacia O.F. Müller, 1781 (POLYCERIDAE)
- Euphyllites, Genus Euphyllites Wahner , 1898 † (PSILOCERATIDAE) (FOSSIL)
- Euphylloceras, syn of: Genus Hypophylloceras Salfeld , 1924 † (PHYLLOCERATIDAE) (FOSSIL)
- Euphyllon, syn of: Genus Chicoreus P.D. Montfort, 1810 (MURICIDAE)
- euphyllum, Tatrophylloceras euphyllum (M. von Neumayr, 1871 †) - (PHYLLOCERATIDAE) (FOSSIL)
- euphymus, Unio euphymus Charmes, 1885 - syn of: Coelatura ratidota (Charmes, 1885) - (UNIONIDAE)
- Eupinacoceras, Genus Eupinacoceras Spath, 1951 † (PINACOCERATIDAE) (FOSSIL)
- Eupisidium, syn of: Genus Pisidium L. Pfeiffer, 1821 (SPHAERIIDAE)
- Euplaciphora, syn of: Genus Placiphorella W.H. Dall, 1879 (MOPALIIDAE)
- Euplacophora, syn of: Genus Placiphorella W.H. Dall, 1879 (MOPALIIDAE)
- Euplacostylus, Subgenus Placostylus (Euplacostylus) J.C.H. Crosse, 1875 (BOTHRIEMBRYONTIDAE)
- euplaeae, Callochiton euplaeae O.G. Costa, 1829 - syn of: Callochiton septemvalvis euplaeae (O.G. Costa, 1829) - (CALLOCHITONIDAE)
- euplaeae, Callochiton septemvalvis euplaeae (O.G. Costa, 1829) - (CALLOCHITONIDAE)
- euplaeae, Chiton euplaeae A. da Costa, 1830 - syn of: Callochiton septemvalvis (G. Montagu, 1803) - (CHITONIDAE)
- Euplaxiphora, syn of: Genus Plaxiphora J.E. Gray, 1847 (MOPALIIDAE)
- Euplecta, Genus Euplecta J.O. Semper, 1870 (ARIOPHANTIDAE)
- eupleura, Phaedusa eupleura (A.R.J.B. Bavay & P. Dautzenberg, 1899) - (CLAUSILIIDAE)
- Eupleura, Genus Eupleura H. Adams & A. Adams, 1853 (MURICIDAE)
- Eupleuroceras, Genus Eupleuroceras Miller & Cline, 1934 † (EUPLEUROCERATIDAE) (FOSSIL)
- EUPLEUROCERATIDAE Ruzhencev, 1957 † - Family (CEPHALOPODA-AMMONOIDEA-GONIATITIDA) (FOSSIL)
- eupleurum, Cochlostoma eupleurum C.A. Westerlund, 1885 - syn of: Cochlostoma affine (L. Benoit, 1875) - (COCHLOSTOMATIDAE)
- Euplica, Genus Euplica W.H. Dall, 1889 (COLUMBELLIDAE)
- Euplocalamus, syn of: Genus Kaloplocamus L.S.R. Bergh, 1892 (POLYCERIDAE)
- Euplocamus, syn of: Genus Kaloplocamus L.S.R. Bergh, 1892 (POLYCERIDAE)
- eupoecila, Eucithara eupoecila R.P.J. Hervier, 1897 - syn of: Eucithara coronata (R.B. Hinds, 1843) - (MANGELIIDAE)
- eupoietum, Cyclostrema eupoietum J.C. Melvill, 1904 - (LIOTIIDAE)
- Eupoleme, syn of: Genus Lepton W.H. Turton, 1822 (LASAEIDAE)
- Eupomatias, syn of: Genus Cochlostoma G. Jan, 1830 (COCHLOSTOMATIDAE)
- Eupomatias, syn of: Genus Nodopomatias G.P.L.K. Gude, 1921 (PUPINIDAE)
- eupontica, Eucrassatella eupontica T.A. Darragh, 1965 † - (CRASSATELLIDAE) (FOSSIL)
- eupora, Chondrina eupora C.A. Westerlund, 1887 - syn of: Chondrina avenacea (J.G. Bruguière, 1792) - (CHONDRINIDAE)
- eupora, Drillia eupora W.H. Dall, 1915 † - syn of: Hindsiclava eupora (W.H. Dall, 1915 †) - (DRILLIIDAE) (FOSSIL)
- eupora, Hindsiclava eupora (W.H. Dall, 1915 †) - (PSEUDOMELATOMIDAE) (FOSSIL)
- euprepes, Pseudotorinia euprepes W.P. Woodring, 1928 † - (ARCHITECTONICIDAE) (FOSSIL)
- euprepes, Armenica euprepes H.E.J. Biggs, 1936 - (CLAUSILIIDAE)
- euprepes transmontana, Armenica euprepes transmontana E. Neubert & H.P.M.G. Menkhorst, 1994 - (CLAUSILIIDAE)
- Euprionoceras, Subgenus Amoeboceras (Euprionoceras) von Buch, 1831 † (CARDIOCERATIDAE) (FOSSIL)
- Euprotomus, Genus Euprotomus T.N. Gill, 1870 (STROMBIDAE)
- Euprymna, Genus Euprymna J.J.S. Steenstrup, 1887 (SEPIOLIDAE)
- Eupsadara, syn of: Genus Psadara K. Miller, 1878 (PLEURODONTIDAE)
- Euptera, Genus Euptera Dartevelle, Freneix & Sornay, 1957 † (PTERIIDA (unassigned)) (FOSSIL)
- Eupterotrachea, syn of: Genus Pterotrachea P. Forsskål, 1775 (PTEROTRACHEIDAE)
- euptychia, Alinda biplicata euptychia (P. Ehrmann, 1960) - (CLAUSILIIDAE)
- Euptychia, syn of: Genus Acroptychia J.C.H. Crosse & P. Fischer, 1877 (MEGALOMASTOMIDAE)
- Euptychoceras, Genus Euptychoceras Breistroffer, 1952 † (BOCHIANITIDAE) (FOSSIL)
- euptyx, Thaumatoptyx euptyx H. Nordsieck, 2003 - (CLAUSILIIDAE)
- eupunctata, Triphora eupunctata G.B. III Sowerby, 1876 - syn of: Triphora taeniolata R.P.J. Hervier, 1898 - (TRIPHORIDAE)
- Eupupina, syn of: Subgenus Pupina (Tylotoechus) W. Kobelt & O.F. von Möllendorff, 1897 (PUPINIDAE)
- eupyga, Chione eupyga H.F.A. von Ihering, 1907 † - (VENERIDAE) (FOSSIL)
- eupygus, Unio eupygus J. Da Silva e Castro, 1885 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- eurabdolena, Helix eurabdolena J.F. Mabille, 1883 - syn of: Cryptaxis groviana (A.E.J. Férussac, 1823) - (HELICIDAE)
- euracantha, Angaria euracantha A. Adams, 1850 - syn of: Angaria delphinus (C. Linnaeus, 1758) - (ANGARIIDAE)
- euracantha, Spinidrupa euracantha (Adams, 1853) - (MURICIDAE)
- Eurasenia, Subgenus Rasenia (Eurasenia) Geyer, 1961 † (AULACOSTEPHANIDAE) (FOSSIL)
- eurasiaticus, Pseudohollandites eurasiaticus Krystyn & Tatzreiter, 1991 † - (BEYRICHITIDAE) (FOSSIL)
- eurasiaticus, Gyraulus eurasiaticus L.A. Prozorova & Y.I. Starobogatov, 1996 - (PLANORBIDAE)
- Eurastele, Subgenus Astele (Eurastele) G.S. Coen, 1946 (CALLIOSTOMATIDAE)
- Eurathea, Genus Eurathea C.F. Laseron, 1959 (PYRAMIDELLIDAE)
- eureka, Albinaria haessleini eureka (O. Böttger, 1878) - (CLAUSILIIDAE)
- eureka, Muusoctopus eureka (C.W. Robson, 1929) - (ENTEROCTOPODIDAE)
- eureka, Enteroctopus eureka C.W. Robson, 1929 - syn of: Muusoctopus eureka (C.W. Robson, 1929) - (ENTEROCTOPODIDAE)
- eureka, Takahashiceras eureka (E. Matsumoto, 1984 †) - (LYTOCERATIDAE) (FOSSIL)
- eureka, Takahashia eureka E. Matsumoto, 1984 † - syn of: Takahashiceras eureka (E. Matsumoto, 1984 †) - (LYTOCERATIDAE) (FOSSIL)
- eurekae, Merriamites eurekae (Blodgett & Johnson, 1992 †) - (PTEROTHECIDAE) (FOSSIL)
- Eurekapegma, Genus Eurekapegma MacKinnon, 1985 † (STENOTHECIDAE) (FOSSIL)
- eurekensis, Euomphalus eurekensis Walcott, 1884 † - (EUOMPHALIDAE) (FOSSIL)
- eurekensis, Oreohelix eurekensis J. Henderson & L.E. Daniels, 1916 - (OREOHELICIDAE)
- Eurhomalea, Genus Eurhomalea A.E.M. Cossmann, 1920 (VENERIDAE)
- eurhynchus, Diplodon expansus eurhynchus (H.C. Küster, 1861) - (HYRIIDAE)
- eurhynchus, Unio eurhynchus H.C. Küster, 1861 - syn of: Diplodon expansus eurhynchus (H.C. Küster, 1861) - (UNIONIDAE)
- Eurhytida, syn of: Genus Rhytida J.A. Albers, 1860 (RHYTIDIDAE)
- euribia, Astyris euribia W.H. Dall, 1927 - (COLUMBELLIDAE)
- Euribia, syn of: Genus Hydromyles J. von Gistel, 1848 (HYDROMYLIDAE)
- euribrocha, Pleurotoma euribrocha P. Dautzenberg & Ficher, 1896 - syn of: Pleurotomella eurybrocha (P. Dautzenberg & H. Fischer, 1896) - (TURRIDAE)
- Euriclanculus, Subgenus Clanculus (Euriclanculus) B.C. Cotton & F.C. Godfrey, 1934 (TROCHIDAE)
- eurina, Comitas eurina (E.A. Smith, 1899) - (PSEUDOMELATOMIDAE)
- eurina, Pupilla eurina (W.H. Benson, 1864) - (PUPILLIDAE)
- eurinus, Boesites eurinus Leonova, 1992 † - (DARAELITIDAE) (FOSSIL)
- eurinus, Tumulites eurinus Ruzhentsev & Bogoslovskaya, 1971 † - (GIRTYOCERATIDAE) (FOSSIL)
- eurinus, Parashumardites eurinus Ruzhentsev, 1950 † - (PARASHUMARDITIDAE) (FOSSIL)
- euripes, Temnocinclis euripes McLean, 1989 - (SUTILIZONIDAE)
- euriptychoides, Russanovia euriptychoides Klimova, 1984 † - (POLYPTYCHITIDAE) (FOSSIL)
- Eurissolina, Subgenus Rissoina (Eurissolina) Woodring, 1928 † (RISSOIDAE) (FOSSIL)
- Eurissolina, syn of: Genus Rissoina D'Orbigny, 1840 (RISSOINIDAE)
- euristenus, Latirulus euristenus G.D. Nardo, 1847 - syn of: Turrilatirus craticulatus (C. Linnaeus, 1758) - (FASCIOLARIIDAE)
- euristoma, Valvata euristoma Š. Brusina, 1902 † - (VALVATIDAE) (FOSSIL)
- Eurites, Genus Eurites Kusina , 1973 † (MUENSTEROCERATIDAE) (FOSSIL)
- euroa, Amplirhagada euroa F. Köhler, 2010 - (CAMAENIDAE)
- eurocapillaria, Dictyotomaria eurocapillaria Amler & Heidelberger, 2003 † - (GOSSELETINIDAE) (FOSSIL)
- Euroceras, Genus Euroceras Ruzhentsev & Bogoslovskaya, 1971 † (STENOGLAPHYRITIDAE) (FOSSIL)
- Euromus, syn of: Genus Peracle E. Forbes, 1844 (PERACLIDAE)
- euronia, Strigilla euronia C. Hedley, 1908 - (TELLINIDAE)
- europa, Ostrea europa J.H. Orton, 1928 - syn of: Ostrea edulis C. Linnaeus, 1758 - (OSTREIDAE)
- europae, Zelandites europae Wright & J. Kennedy, 1984 † - (GAUDRYCERATIDAE) (FOSSIL)
- europae, Anodontites europae C.T. Simpson, 1900 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (MYCETOPODIDAE)
- europaea, Cypraea europaea G. Montagu, 1808 - syn of: Trivia monacha (da Costa, 1778) - (CYPRAEIDAE)
- europaea, Cypraea europaea P.D. Montfort, 1808 - syn of: Trivia monacha (da Costa, 1778) - (CYPRAEIDAE)
- europaea, Palaina europaea L. von G. Tausch, 1886 † - (DIPLOMMATINIDAE) (FOSSIL)
- europaea, Crassitoniella europaea P. Lozouet, 1998 † - (EATONIELLIDAE) (FOSSIL)
- europaea, Aenigmomphiscola europaea N.D. Kruglov & Y.I. Starobogatov, 1981 - (LYMNAEIDAE)
- europaea, Paranannites europaea Arthaber, 1911 † - syn of: Arnautoceltites mediterraneus (Arthaber, 1911 †) - (MELAGATHICERATIDAE) (FOSSIL)
- europaea, Nassaria europaea P. Lozouet, 2015 - (NASSARIIDAE)
- europaea, Ensis europaea W.J. Swainson, 1840 - syn of: Ensis ensis (C. Linnaeus, 1758) - (PHARIDAE)
- europaea, Aenigmomphisicola europaea N.D. Kruglov & Y.I. Starobogatov, 1981 - (PLANORBIDAE)
- europaea, Roboastra europaea J.C. García-Gómez, 1985 - (POLYCERIDAE)
- europaea, Alvania europaea A. Risso, 1826 - syn of: Alvania cimex (C. Linnaeus, 1758) - (RISSOIDAE)
- europaea, Testacella europaea A.F.P.M. de Roissy, 1805 - syn of: Testacella haliotidea J.P.R. Draparnaud, 1801 - (TESTACELLIDAE)
- europaea, Trivia europaea G. Montagu, 1808 - syn of: Trivia monacha (da Costa, 1778) - (TRIVIIDAE)
- europaea, Trivia europaea A. Risso, 1826 - syn of: Trivia arctica (R. Pulteney, 1799) - (TRIVIIDAE)
- europaea minor, Cypraea europaea minor W.B. Marshall, 1893 - syn of: Trivia arctica (R. Pulteney, 1799) - (CYPRAEIDAE)
- europaea tripunctata, Cypraea europaea tripunctata M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1883 - syn of: Trivia monacha (da Costa, 1778) - (CYPRAEIDAE)
- europaea tripunctata, Trivia europaea tripunctata M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1883 - syn of: Trivia monacha (da Costa, 1778) - (TRIVIIDAE)
- europaeum, Cerithium vulgatum europaeum C. Mayer, 1878 † - (CERITHIIDAE) (FOSSIL)
- europaeus, Subcolumbites europaeus (Arthaber, 1908 †) - (COLUMBITIDAE) (FOSSIL)
- europaeus, Glaphyrites europaeus Kullmann, 1962 † - (GLAPHYRITIDAE) (FOSSIL)
- europaeus, Eoasianites europaeus Ruzhencev 1933 † - (NEOICOCERATIDAE) (FOSSIL)
- europaeusperrinismithi, Columbites europaeusperrinismithi Renz & Renz, 1948 † - syn of: Subcolumbites perrinismithi (Arthaber, 1908 †) - (COLUMBITIDAE) (FOSSIL)
- europea, Modiola europea H.C. Weinkauff, 1868 - syn of: Musculus subpictus (F.J. Cantraine, 1835) - (MYTILIDAE)
- europea, Alvania europea A. Risso, 1826 - syn of: Alvania cimex (C. Linnaeus, 1758) - (RISSOIDAE)
- europeum, Cardium europeum W.J. Swainson, 1840 - syn of: Laevicardium crassum (J.F. Gmelin, 1791) - (CARDIIDAE)
- Europhos, Genus Europhos Landau, Harzhauser, Islamoglu & Silva, 2014 † (NASSARIIDAE) (FOSSIL)
- Europicardium, Genus Europicardium A.M. Popov, 1977 (CARDIIDAE)
- Europisidium, syn of: Genus Pisidium L. Pfeiffer, 1821 (SPHAERIIDAE)
- europisthus, Tellina europisthus K.H. Barnard, 1964 - syn of: Cadella semen (S.C.T. Hanley, 1845) - (TELLINIDAE)
- Europrotomus, Genus Europrotomus Kronenberg & Harzhauser, 2012 † (STROMBIDAE) (FOSSIL)
- euros, Cerithium euros C.É. Bayle, 1880 - (CERITHIIDAE)
- Euroscaphella, Genus Euroscaphella Van Dingenen, Ceulemans & Landau, 2014 † (VOLUTIDAE) (FOSSIL)
- eurostus, Nassarius eurostus (C.F. Fontannes, 1879 †) - (NASSARIIDAE) (FOSSIL)
- Eurotis, syn of: Genus Haliotis C. Linnaeus, 1758 (HALIOTIDAE)
- Eurotrigonia, Genus Eurotrigonia M.R. Cooper, 2015 † (PTEROTRIGONIIDAE) (FOSSIL)
- euroxestus, Tengchiena euroxestus (T. Iredale, 1937) - (EUCONULIDAE)
- euryacme, Heterocithara euryacme J.C. Melvill, 1927 - syn of: Kermia euryacme (J.C. Melvill, 1927) - (MANGELIIDAE)
- euryacme, Kermia euryacme (J.C. Melvill, 1927) - (RAPHITOMIDAE)
- Euryalox, Genus Euryalox Cossmann, 1897 † (PHYMATOPLEURIDAE) (FOSSIL)
- Euryanodon, syn of: Genus Anodontites J.G. Bruguière, 1792 (MYCETOPODIDAE)
- Euryauchenia, Genus Euryauchenia H. Nordsieck, 2007 (CLAUSILIIDAE)
- Eurybasis, Subgenus Geotrochus (Eurybasis) G.P.L.K. Gude, 1913 (HELICARIONIDAE)
- eurybia, Propebela eurybia (P. Bartsch, 1941) - (MANGELIIDAE)
- eurybia, Bostrichocentrum eurybia P. Bartsch, 1926 - (UROCOPTIDAE)
- eurybis, Pseudotorinia eurybis A.A. Olsson, 1964 † - (ARCHITECTONICIDAE) (FOSSIL)
- eurybrocha, Pleurotomella eurybrocha (P. Dautzenberg & H. Fischer, 1896) - (RAPHITOMIDAE)
- eurybrocha, Pleurotoma eurybrocha P. Dautzenberg & H. Fischer, 1896 - syn of: Pleurotomella eurybrocha (P. Dautzenberg & H. Fischer, 1896) - (TURRIDAE)
- Eurycaelon, Genus Eurycaelon Lea, 1864 (PLEUROCERIDAE)
- Eurycampta, Subgenus Cepolis (Eurycampta) E.C. Von Martens, 1860 (CEPOLIDAE)
- eurycarinatum, Claviderma eurycarinatum D. Ivanov & A.H. Scheltema, 2000 - (PROCHAETODERMATIDAE)
- eurycephala, Pteroctopus eurycephala (Iw. Taki, 1964) - (OCTOPODIDAE)
- Eurycephalites, Genus Eurycephalites Tornquist, 1898 † (SPHAEROCERATIDAE) (FOSSIL)
- eurychada, Eulima eurychada R.B. Watson, 1883 - (EULIMIDAE)
- eurychades, Pisinna eurychades (R.B. Watson, 1886) - (ANABATHRIDAE)
- eurychila, Ampelita sepulchralis eurychila J.C.H. Crosse & P.H. Fischer, 1890 - (ACAVIDAE)
- eurychilus, Galeodea eurychilus A.E.M. Cossmann, 1889 † - (CASSIDAE) (FOSSIL)
- eurychlamys, Platydoris eurychlamys L.S.R. Bergh, 1877 - syn of: Platydoris scabra (G.L.C.F.D. Cuvier, 1804) - (DISCODORIDIDAE)
- Eurychlamys, Genus Eurychlamys H.H. Godwin-Austen, 1899 (EUCONULIDAE)
- eurychone, Pseudomalaxis eurychone A.E.M. Cossmann, 1899 † - (ARCHITECTONICIDAE) (FOSSIL)
- eurychoros, Pseudonautilus eurychoros Schairer & Barthel, 1977 † - (PSEUDONAUTILIDAE) (FOSSIL)
- euryclea, Mangelia euryclea W.H. Dall, 1919 - syn of: Agathotoma alcippe (W.H. Dall, 1918) - (MANGELIIDAE)
- euryclea, Turris euryclea W.H. Dall, 1919 - syn of: Agathotoma alcippe (W.H. Dall, 1918) - (TURRIDAE)
- eurycotylum, Pneumoderma violaceum eurycotylum J. Meisenheimer, 1905 - (PNEUMODERMATIDAE)
- Eurycratera, Genus Eurycratera H.H. Beck, 1837 (PLEURODONTIDAE)
- Eurydesma, Genus Eurydesma Morris, 1845 † (EURYDESMATIDAE) (FOSSIL)
- EURYDESMATIDAE Reed, 1932 † - Family (BIVALVIA-PTERIOMORPHIA-PECTINIDA) (FOSSIL)
- eurydice, Straparella eurydice Billings, 1860 † - syn of: Straparollina eurydice (Billings, 1860 †) - (ANOMPHALIDAE) (FOSSIL)
- eurydice, Pachydiscus eurydice (C.J. Maury 1930 †) - (DESMOCERATIDAE) (FOSSIL)
- eurydice, Natica eurydice White, 1887 † - (NATICIDAE) (FOSSIL)
- Eurydice, syn of: Genus Phylliroe F. Péron & C.A. Lesueur, 1810 (PHYLLIROIDAE)
- eurydice, Straparollina eurydice (Billings, 1860 †) - (STRAPAROLLINIDAE) (FOSSIL)
- eurydice, Trochomorpha eurydice (A.A. Gould, 1848) - (TROCHOMORPHIDAE)
- eurydictium, Rissoa eurydictium A.E.M. Cossmann, 1888 † - (RISSOIDAE) (FOSSIL)
- Eurydike, Genus Eurydike Kautsky, 1925 † (NEOGASTROPODA (unassigned)) (FOSSIL)
- euryeia, Trapania euryeia T.M. Gosliner & S.J. Fahey, 2008 - (GONIODORIDIDAE)
- Euryentmema, Genus Euryentmema Woodring , 1928 † (TURRIDAE) (FOSSIL)
- Euryentmena, Genus Euryentmena W.P. Woodring, 1928 (MANGELIIDAE)
- Euryentome, Genus Euryentome A.E.M. Cossmann, 1899 † (MARGINELLIDAE) (FOSSIL)
- eurygaster, Radix subovata eurygaster (O. Böttger, 1869 †) - (LYMNAEIDAE) (FOSSIL)
- euryhedra, Sinum euryhedra W.P. Woodring, 1957 † - (NATICIDAE) (FOSSIL)
- eurylobica, Platyclymenia eurylobica J.D. Petersen, 1975 † - (PLATYCLYMENIIDAE) (FOSSIL)
- eurylopas, Chionopsis eurylopas W.P. Woodring, 1982 † - (VENERIDAE) (FOSSIL)
- eurymedon, Turbo eurymedon Laube, 1869 † - (TURBINIDAE) (FOSSIL)
- eurymorpha, Modiolus eurymorpha A.E.M. Cossmann & G. Pissarro † - (MYTILIDAE) (FOSSIL)
- eurymorpha, Arcopagia eurymorpha A.E.M. Cossmann, 1886 † - (TELLINIDAE) (FOSSIL)
- Eurymya, Genus Eurymya Ulrich, 1894 † (MODIOMORPHIDA (unassigned)) (FOSSIL)
- Eurymyella, Genus Eurymyella Williams, 1912 † (MODIOMORPHIDAE) (FOSSIL)
- Eurynia, syn of: Genus Elliptio C.S. Rafinesque, 1819 (UNIONIDAE)
- eurynome, Crassispira eurynome W.H. Dall, 1919 - (PSEUDOMELATOMIDAE)
- eurynota, Mytilus eurynota A.E.M. Cossmann, 1887 † - (MYTILIDAE) (FOSSIL)
- Eurynoticeras, Genus Eurynoticeras Canavari, 1897 † (OPPELIIDAE) (FOSSIL)
- eurynotum, Eurypyrene eurynotum W.P. Woodring, 1928 - (COLUMBELLIDAE)
- Euryochetus, Genus Euryochetus A.E.M. Cossmann, 1896 † (BUCCINIDAE) (FOSSIL)
- euryomphala, Tornatellides euryomphala (C.M.F. Ancey, 1889) - (ACHATINELLIDAE)
- euryomphala, Cymaclymenia euryomphala Schindewolf, 1937 † - syn of: Postclymenia evoluta (H. Schmidt, 1924 †) - (CYMACLYMENIIDAE) (FOSSIL)
- euryomphala, Protactoclymenia euryomphala Wedekind, 1918 † - syn of: Planitornoceras euryomphalum (Wedekind, 1918 †) - (CYRTOCLYMENIIDAE) (FOSSIL)
- euryomphala, Sinoennea euryomphala Inkhavilay & Panha, 2016 - (DIAPHERIDAE)
- Euryomphala, syn of: Genus Discus L.I. Fitzinger, 1833 (DISCIDAE)
- euryomphala, Hydrobia euryomphala (J.R. Bourguignat, 1876) - (HYDROBIIDAE)
- Euryomphala, syn of: Genus Euomphalia C.A. Westerlund, 1889 (HYGROMIIDAE)
- euryomphala, Tegula euryomphala (I.H. Jonas, 1844) - (TEGULIDAE)
- euryomphala, Moreletia euryomphala (L. Pfeiffer, 1845) - (ZONITIDAE)
- Euryomphalia, syn of: Genus Pyramidula L.I. Fitzinger, 1833 (PYRAMIDULIDAE)
- euryomphalum, Chlorostoma euryomphalum I.H. Jonas, 1844 - (TEGULIDAE)
- euryomphalum, Planitornoceras euryomphalum (Wedekind, 1918 †) - (TORNOCERATIDAE) (FOSSIL)
- euryomphalus, Plekocheilus euryomphalus I.H. Jonas, 1844 - (AMPHIBULIMIDAE)
- euryomphalus, Opisthoporus euryomphalus (L. Pfeiffer, 1856) - (CYCLOPHORIDAE)
- euryomphalus, Cyrtolites euryomphalus Lindström, 1884 † - syn of: Temnodiscus euryomphalus (Lindström, 1884 †) - (CYRTOLITIDAE) (FOSSIL)
- euryomphalus, Goniatites euryomphalus Holzapfel, 1895 † - syn of: Agoniatites costulatus (d'Archiac & de Verneuil, 1842 †) - (GONIATITIDAE) (FOSSIL)
- euryomphalus, Temnodiscus euryomphalus (Lindström, 1884 †) - (TROPIDODISCIDAE) (FOSSIL)
- euryomphalus, Neothauma euryomphalus J.R. Bourguignat, 1888 - (VIVIPARIDAE)
- Euryops, syn of: Genus Pterotrachea P. Forsskål, 1775 (PTEROTRACHEIDAE)
- Euryopsis, syn of: Genus Pterotrachea P. Forsskål, 1775 (PTEROTRACHEIDAE)
- euryptera, Cerithideopsilla cingulata euryptera (A. Adams & G.B. II Sowerby in G.W. Tryon, 1887) - (POTAMIDIDAE)
- euryptera, Rostellaria euryptera Buvignier, 1852 † - (ROSTELLARIIDAE) (FOSSIL)
- eurypteron, Murex eurypteron L.A. Reeve, 1845 - syn of: Ocinebrellus falcata (G.B. II Sowerby, 1834) - (MURICIDAE)
- Euryptychites, Subgenus Polyptychites (Euryptychites) Alsen, 2006 † (POLYPTYCHITIDAE) (FOSSIL)
- Euryptyxis, Genus Euryptyxis P. Fischer, 1883 (CERASTUIDAE)
- Eurypus, syn of: Genus Orpiella J.E. Gray, 1855 (HELICARIONIDAE)
- Eurypyrene, Genus Eurypyrene W.P. Woodring, 1928 (COLUMBELLIDAE)
- euryrhyncha, Tellina euryrhyncha A.E.M. Cossmann & M.A. Peyrot, 1910 † - (TELLINIDAE) (FOSSIL)
- Euryrizoceras, Genus Euryrizoceras Foerste, 1935 † (ACLEISTOCERATIDAE) (FOSSIL)
- eurysoma, Drillia eurysoma J. Gardner, 1937 † - (DRILLIIDAE) (FOSSIL)
- euryspira, Morula euryspira (R. Houart, 1995) - (MURICIDAE)
- euryspira, Habromorula euryspira (R. Houart, 1995) - syn of: Morula euryspira (R. Houart, 1995) - (MURICIDAE)
- eurystoma, Acteon eurystoma W.P. Woodring, 1928 † - (ACTEONIDAE) (FOSSIL)
- eurystoma, Paludinella eurystoma A. Paladilhe, 1870 - syn of: Bythinella eurystoma (A. Paladilhe, 1870) - (ASSIMINEIDAE)
- eurystoma, Bythinella eurystoma (A. Paladilhe, 1870) - (BYTHINELLIDAE)
- Eurystoma, syn of: Genus Trachia J.A. Albers, 1860 (CAMAENIDAE)
- eurystoma, Strophiops eurystoma C.J. Maynard, 1896 - (CERIONIDAE)
- eurystoma, Drillia riogurabonis eurystoma Gardner, 1937 - (DRILLIIDAE)
- eurystoma, Pupinidius obrutschewi eurystoma (O.F. von Möllendorff, 1901) - (ENIDAE)
- eurystoma, Platycythara eurystoma W.P. Woodring, 1928 † - (MANGELIIDAE) (FOSSIL)
- eurystoma, Serrata eurystoma J. Gardner, 1937 † - (MARGINELLIDAE) (FOSSIL)
- eurystoma, Melanopsis eurystoma M. von Neumayr in M. von Neumayr & C.R.C. Paul, 1875 † - (MELANOPSIDAE) (FOSSIL)
- eurystoma, Phragmoceras eurystoma Hedstrom, 1917 † - (PHRAGMOCERATIDAE) (FOSSIL)
- eurystoma, Bermudezia eurystoma (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- eurystoma chorrillensis, Bermudezia eurystoma chorrillensis (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- eurystoma flexible, Phragmoceras eurystoma flexible Hedstrom, 1917 † - (PHRAGMOCERATIDAE) (FOSSIL)
- eurystoma ignota, Strophiops eurystoma ignota C.J. Maynard, 1896 - (CERIONIDAE)
- eurystomia, Andraea eurystomia J.R. Bourguignat, 1877 - syn of: Clausilia dubia geretica J.R. Bourguignat, 1877 - (CLAUSILIIDAE)
- Eurystomites, Genus Eurystomites Schröder, 1891 † (TARPHYCERATIDAE) (FOSSIL)
- eurystomus, Drymaeus eurystomus R.A. Philippi, 1867 - (BULIMULIDAE)
- eurystomus, Murex eurystomus W.J. Swainson, 1833 - syn of: Hexaplex duplex (P.F. Röding, 1798) - (MURICIDAE)
- eurystomus, Choanomphalus eurystomus W.A. Lindholm, 1909 - (PLANORBIDAE)
- eurystomus hamadryas, Drymaeus eurystomus hamadryas R.A. Philippi, 1867 - (BULIMULIDAE)
- Eurystyla, Genus Eurystyla C.M.F. Ancey, 1887 (ACAVIDAE)
- Euryta, syn of: Genus Mazatlania W.H. Dall, 1913 (COLUMBELLIDAE)
- Eurytellina, Subgenus Tellina (Eurytellina) P. Fischer, 1887 (TELLINIDAE)
- eurythma, Gyrocochlea eurythma C. Hedley, 1924 - (CHAROPIDAE)
- eurythma, Montfortulana eurythma (P. Dautzenberg, 1908) - (FISSURELLIDAE)
- eurythyra, Hemicycla eurythyra O. Böttger, 1908 - (HELICIDAE)
- eurytima, Cerithium eurytima J.C. Melvill & R. Standen, 1896, 1897 - syn of: Cerithium nodulosum J.G. Bruguière, 1792 - (CERITHIIDAE)
- eurytima, Spirotropis eurytima M. Morassi, 1998 - (DRILLIIDAE)
- eurytima, Mathilda eurytima J.C. Melvill & R. Standen, 1896 - syn of: Cerithium nodulosum J.G. Bruguière, 1792 - (MATHILDIDAE)
- eurytoides, Truncaria eurytoides P.P. Carpenter, 1864 - syn of: Aesopus eurytoides (P.P. Carpenter, 1864) - (BUCCINIDAE)
- eurytoides, Aesopus eurytoides (P.P. Carpenter, 1864) - (COLUMBELLIDAE)
- eurytoideus, Aesopus eurytoideus P.P. Carpenter, 1864 - syn of: Aesopus eurytoides (P.P. Carpenter, 1864) - (COLUMBELLIDAE)
- Eurytorus, Subgenus Torcula (Eurytorus) Gardner, 1947 † (TURRITELLIDAE) (FOSSIL)
- Eurytrachia, Genus Eurytrachia J. Stanisic, 2010 (CAMAENIDAE)
- eurytrema, Tortulosa eurytrema (L. Pfeiffer, 1852) - (PUPINIDAE)
- eurytrochus, Kaliella eurytrochus J.J. Vermeulen, T.S. Liew & M. Schilthuizen, 2015 - (CHRONIDAE)
- Eurytrochus, Genus Eurytrochus P. Fischer in L.C. Kiener & P. Fischer, 1880 (TROCHIDAE)
- Eurytropis, syn of: Genus Omphalotropis L. Pfeiffer, 1851 (ASSIMINEIDAE)
- Eurytus, Subgenus Plekocheilus (Eurytus) J.A. Albers, 1850 (AMPHIBULIMIDAE)
- Euryzone, Genus Euryzone Spitz, 1907 † (GOSSELETINIDAE) (FOSSIL)
- euryzonum, Canistrum ovoideum euryzonum (L. Pfeiffer, 1847) - (BRADYBAENIDAE)
- Eusagenites, Genus Eusagenites Tozer , 1971 † (HALORITIDAE) (FOSSIL)
- eusarcum, Chondropomium eusarcum (L. Pfeiffer, 1852) - (POMATIIDAE)
- eusarcum catalinitense, Chondropomium eusarcum catalinitense P. Bartsch, 1946 - (POMATIIDAE)
- eusarcum puertoplatense, Chondropomium eusarcum puertoplatense P. Bartsch, 1946 - (POMATIIDAE)
- eusarcum saonaense, Chondropomium eusarcum saonaense P. Bartsch, 1946 - (POMATIIDAE)
- euscaphys, Anemina euscaphys (P.M. Heude, 1879) - (UNIONIDAE)
- euschema, Xenotrophon euschema (T. Iredale, 1929) - (MURICIDAE)
- euschemon, Conus euschemon J.R. le B. Tomlin, 1937 - syn of: Textilia timorensis (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- Euscobinella, Genus Euscobinella † (NEOGASTROPODA (unassigned)) (FOSSIL)
- eusculptum, Epitonium eusculptum (G.B. III Sowerby, 1903) - (EPITONIIDAE)
- Eusebia, Genus Eusebia Maury, 1930 † (ARCIDA (unassigned)) (FOSSIL)
- eusebii, Acanthodrepanites eusebii (Diener, 1920 †) - (TIBETITIDAE) (FOSSIL)
- Euseila, syn of: Genus Cerithiella A.E. Verrill, 1882 (NEWTONIELLIDAE)
- Euseila, syn of: Genus Cerithiella A.E. Verrill, 1882 (NEWTONIELLIDAE)
- Euselenops, Genus Euselenops H.A. Pilsbry, 1896 (PLEUROBRANCHAEIDAE)
- euselma, Cythara euselma J.C. Melvill & R. Standen, 1896 - syn of: Gingicithara notabilis (E.A. Smith, 1888) - (MANGELIIDAE)
- euselma, Eucithara euselma J.L. Bouge & P. Dautzenberg, 1914 - syn of: Gingicithara notabilis (E.A. Smith, 1888) - (MANGELIIDAE)
- Eusepia, syn of: Genus Sepia C. Linnaeus, 1758 (SEPIIDAE)
- Eusepiola, syn of: Genus Sepiola W.E. Leach, 1817 (SEPIOLIDAE)
- Eusetia, Genus Eusetia B.C. Cotton, 1944 (ACLIDIDAE)
- Eushantungoceras, Genus Eushantungoceras Shimizu & Obata, 1935 † (ARMENOCERATIDAE) (FOSSIL)
- Eusiphorus, syn of: Genus Detracia J.E. Gray in W.H. Turton, 1840 (ELLOBIIDAE)
- eusomata, Anodonta eusomata G. Servain, 1888 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- eusphaera, Scapharca eusphaera Boettger, 1883 † - (ARCIDAE) (FOSSIL)
- Eusphairica, Genus Eusphairica Hoare , 2000 † (BRANSONIIDAE) (FOSSIL)
- Euspinacassis, syn of: Genus Phalium J.H.F. Link, 1807 (CASSIDAE)
- euspira, Macrochlamys euspira O.F. von Möllendorff, 1901 - (ARIOPHANTIDAE)
- euspira, Haplotrema euspira L. Pfeiffer, 1854 - syn of: Happia euspira (L. Pfeiffer, 1854) - (HAPLOTREMATIDAE)
- euspira, Margarites euspira W.H. Dall, 1881 - syn of: Bathymophila euspira (W.H. Dall, 1881) - (MARGARITIDAE)
- Euspira, Genus Euspira A.E.R. Agassiz, 1839 (NATICIDAE)
- euspira, Happia euspira (L. Pfeiffer, 1854) - (SCOLODONTIDAE)
- euspira, Bathymophila euspira (W.H. Dall, 1881) - (SOLARIELLIDAE)
- euspira, Trochus euspira W.H. Dall, 1881 - syn of: Bathymophila euspira (W.H. Dall, 1881) - (TROCHIDAE)
- euspira nitens, Margarites euspira nitens W.H. Dall, 1881 - syn of: Bathymophila euspira (W.H. Dall, 1881) - (MARGARITIDAE)
- Euspiraxis, Subgenus Spiraxis (Euspiraxis) L. Pfeiffer, 1854 (SPIRAXIDAE)
- Euspirocrommium, Subgenus Amaurellina (Euspirocrommium) Sacco, 1890 † (AMPULLINIDAE) (FOSSIL)
- eussoensis, Segmentorbis eussoensis (H.B. Preston, 1912) - (PLANORBIDAE)
- Eussoia, Genus Eussoia H.B. Preston, 1912 (ASSIMINEIDAE)
- Eustaphylaea, Genus Eustaphylaea W.R. Steadman & B.C. Cotton, 1946 (CYPRAEIDAE)
- eusteirus, Drymaeus eusteirus H.A. Pilsbry, 1944 - (BULIMULIDAE)
- Eusthenoceras, Genus Eusthenoceras Foord, 1898 † (PSEUDORTHOCERATIDAE) (FOSSIL)
- eustilba, Andraea eustilba J.R. Bourguignat, 1877 - syn of: Clausilia dubia J.P.R. Draparnaud, 1805 - (CLAUSILIIDAE)
- eustola, Tropidophora eustola (J.C.H. Crosse & P.H. Fischer, 1887) - (POMATIIDAE)
- eustoma, Chloritis eustoma L. Pfeiffer, 1856 - (CAMAENIDAE)
- Eustoma, Genus Eustoma Piette, 1855 † (EUSTOMATIDAE) (FOSSIL)
- EUSTOMATIDAE Cossmann, 1906 † - Family (GASTROPODA-CAENOGASTROPODA) (FOSSIL)
- Eustomia, Genus Eustomia Cossmann, 1921 † (OPISTHOBRANCHIA (unassigned)) (FOSSIL)
- Eustomopsis, syn of: Genus Chloritis H.H. Beck, 1837 (CAMAENIDAE)
- eustomus, Mitrella eustomus F.P. Jousseaume, 1876 - syn of: Graphicomassa albina (L.C. Kiener, 1841) - (COLUMBELLIDAE)
- eustomus, Pyrene eustomus F.P. Jousseaume, 1876 - syn of: Graphicomassa albina (L.C. Kiener, 1841) - (COLUMBELLIDAE)
- eustrapa, Iberellus eustrapa J.R. Bourguignat, 1883 - syn of: Iberellus hispanicus (E.A. Rossmässler, 1838) - (HELICIDAE)
- Eustreptaxis, Genus Eustreptaxis L. Pfeiffer, 1878 (STREPTAXIDAE)
- Eustreptostele, syn of: Subgenus Streptostele (Tomostele) C.M.F. Ancey, 1885 (STREPTAXIDAE)
- Eustreptostyla, Subgenus Streptostyla (Eustreptostyla) F.C. Baker, 1927 (SPIRAXIDAE)
- eustriata, Torrecoptis eustriata C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- eustricta, Candidula eustricta (J.R. Bourguignat, 1863) - (HYGROMIIDAE)
- eustrictus, Vitrinoides eustrictus (D.F. Heynemann, 1882) - (LIMACIDAE)
- Eustrombus, Subgenus Strombus (Eustrombus) Wenz, 1940 † (STROMBIDAE) (FOSSIL)
- Eustrombus, syn of: Genus Lobatus W.J. Swainson, 1837 (STROMBIDAE)
- eustropha, Idyla eustropha (O. Böttger, 1879) - (CLAUSILIIDAE)
- eustropha, Idyla bicristata eustropha (A.J. Wagner, 1914) - (CLAUSILIIDAE)
- Eustylodon, syn of: Genus Lutraria J.B.P.A. Lamarck, 1799 (MACTRIDAE)
- Eustylus, syn of: Genus Trypanostylus Münster, 1841 † (COELOSTYLINIDAE) (FOSSIL)
- eusulcatum, Vexillum eusulcatum (Finlay, 1924 †) - (COSTELLARIIDAE) (FOSSIL)
- eusulcatus, Nassarius eusulcatus (G.B. III Sowerby, 1902) - (NASSARIIDAE)
- eutacta, Nassa eutacta É.A.A. Locard, 1887 † - syn of: Tritia pygmaea (J.B.P.A. Lamarck, 1822 †) - (NASSARIIDAE) (FOSSIL)
- eutacta, Olivella eutacta W.H. Dall, 1903 † - (OLIVELLIDAE) (FOSSIL)
- eutaeniata, Cancellaria eutaeniata A.E.M. Cossmann, 1896 † - (CANCELLARIIDAE) (FOSSIL)
- eutaenium, Epitonium eutaenium W.H. Dall, 1917 - (EPITONIIDAE)
- Eutapes, syn of: Genus Paphia P.F. Röding, 1798 (VENERIDAE)
- eutawcolens, Crassatella eutawcolens G.F. Harris, 1919 † - (CRASSATELLIDAE) (FOSSIL)
- Eutaxis, syn of: Genus Atopocochlis J.C.H. Crosse & P. Fischer, 1888 (ACHATINIDAE)
- eutecta, Helix eutecta T.A. de M. Monterosato, 1892 - syn of: Cornu aspersum (O.F. Müller, 1774) - (HELICIDAE)
- euteia, Solariella euteia C. Vilvens, 2009 - (SOLARIELLIDAE)
- Eutellina, syn of: Genus Tellina C. Linnaeus, 1758 (TELLINIDAE)
- Euterebra, Genus Euterebra B.C. Cotton & F.C. Godfrey, 1932 (TEREBRIDAE)
- euterpe, Coniglobus mercatorius euterpe (H.A. Pilsbry & Y. Hirase, 1903) - (CAMAENIDAE)
- euterpe, Mitrella euterpe (J.C. Melvill, 1893) - (COLUMBELLIDAE)
- euterpes, Leptopecten euterpes S.S. Berry, 1957 - syn of: Paraleptopecten velero (L.G. Hertlein, 1935) - (PECTINIDAE)
- Eutexanites, Subgenus Plesiotexanites (Eutexanites) Klinger & Kennedy, 1980 † (COLLIGNONICERATIDAE) (FOSSIL)
- euthalasina, Cernuella euthalasina J.R. Bourguignat in É.A.A. Locard, 1894 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- Eutheba, Subgenus Monacha (Eutheba) H. Nordsieck, 1993 (HYGROMIIDAE)
- eutheca, Hirasea eutheca H.A. Pilsbry & Y. Hirase, 1907 - (ENDODONTIDAE)
- euthenia, Colposigma euthenia J.D. Stilwell & Zinsmeister, 1992 † - (TURRITELLIDAE) (FOSSIL)
- eutheta, Helix eutheta C.A. Westerlund, 1897 - syn of: Karaftohelix dieckmanni (A. Mousson, 1887) - (HELICIDAE)
- euthlasta, Cylichna euthlasta J.C. Melvill, 1918 - (CYLICHNIDAE)
- Euthrena, syn of: Genus Buccinulum G.P. Deshayes, 1830 (BUCCINIDAE)
- Euthrenopsis, Subgenus Buccinulum (Euthrenopsis) A. Powell, 1929 (BUCCINIDAE)
- Euthria, Genus Euthria J.E. Gray, 1850 (BUCCINIDAE)
- euthriaeforme, Buccinum euthriaeforme M. Paulus & P. Mars, 1942 - syn of: Buccinum humphreysianum I. Bennet, 1825 - (BUCCINIDAE)
- Euthriofusus, Genus Euthriofusus Cossmann, 1901 † (FASCIOLARIIDAE) (FOSSIL)
- euthrioides, Lachesis euthrioides J.C. Melvill & R. Standen, 1898 - syn of: Glypteuthria meridionalis (E.A. Smith, 1881) - (BUCCINIDAE)
- euthrioides, Munditia euthrioides J.C. Melvill & R. Standen, 1898 - syn of: Munditia meridionalis (J.C. Melvill & R. Standen, 1912) - (LIOTIIDAE)
- Euthriostoma, Genus Euthriostoma I. Marche-Marchad & P. Brebion, 1977 (BUCCINIDAE)
- euthrix, Pholeoteras euthrix R. Sturany, 1904 - (LAURIIDAE)
- Euthropia, syn of: Genus Tricolia A. Risso, 1826 (PHASIANELLIDAE)
- Euthydesma, Genus Euthydesma Hall, 1885 † (PRAECARDIOIDEA (unassigned)) (FOSSIL)
- euthymeana, Anodonta euthymeana É.A.A. Locard, 1884 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- euthymeanus, Arion euthymeanus Florence, 1888 - (ARIONIDAE)
- euthymeanus, Unio euthymeanus É.A.A. Locard, 1889 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- euthymei, Nothoadmete euthymei (K.H. Barnard, 1960) - (CANCELLARIIDAE)
- Euthymella, Genus Euthymella K.H.J. Thiele, 1929 (TRIPHORIDAE)
- euthymi, Turbo euthymi F.P. Jousseaume, 1881 - syn of: Turbo petholatus C. Linnaeus, 1758 - (TURBINIDAE)
- Euthymia, syn of: Genus Euthymella K.H.J. Thiele, 1929 (TRIPHORIDAE)
- euthymiana, Costellaria euthymiana P. Dautzenberg & J.L. Bouge, 1923 - syn of: Vexillum radix (G.B. II Sowerby, 1874) - (COSTELLARIIDAE)
- euthymiana, Mitra euthymiana P. Dautzenberg & J.L. Bouge, 1923 - syn of: Vexillum radix (G.B. II Sowerby, 1874) - (MITRIDAE)
- Euthymipecten, Genus Euthymipecten Dhondt & Dieni, 1988 † (PTERIOIDEA (unassigned)) (FOSSIL)
- euthynta, Portlandella euthynta W.P. Woodring, 1973 † - (SAREPTIDAE) (FOSSIL)
- Euthyrachis, syn of: Genus Euthyrhachis Tyler, 1965 † (PLATYCERATIDAE) (FOSSIL)
- Euthyrhachis, Genus Euthyrhachis Tyler, 1965 † (PLATYCERATIDAE) (FOSSIL)
- Euthystylus, Genus Euthystylus Münster, 1841 † (EULIMIDAE) (FOSSIL)
- Eutinochilus, Subgenus Teinostoma (Eutinochilus) A.E.M. Cossmann, 1918 (TORNIDAE)
- Eutivela, syn of: Genus Tivela J.H.F. Link, 1807 (VENERIDAE)
- Eutomoceras, Genus Eutomoceras Hyatt , 1877 † (CERATITIDAE) (FOSSIL)
- Eutomopeas, Subgenus Lamellaxis (Eutomopeas) H.A. Pilsbry, 1946 (SUBULINIDAE)
- eutopica, Amalda eutopica T. Ninomiya, 1987 - syn of: Amalda utopica T. Ninomiya, 1987 - (ANCILLARIIDAE)
- eutorniscus, Fossarus eutorniscus J.C. Melvill, 1918 - (PLANAXIDAE)
- eutornus, Afrophysema eutornus (J.R. le B. Tomlin, 1921) - (LUCINIDAE)
- eutornus, Cryptodon eutornus J.R. le B. Tomlin, 1921 - syn of: Afrophysema eutornus (J.R. le B. Tomlin, 1921) - (MACTRIDAE)
- eutornus, Thyasira eutornus J.R. le B. Tomlin, 1921 - syn of: Afrophysema eutornus (J.R. le B. Tomlin, 1921) - (THYASIRIDAE)
- eutorta, Olivella eutorta W.H. Dall, 1915 † - syn of: Omogymna eutorta (W.H. Dall, 1915 †) - (OLIVELLIDAE) (FOSSIL)
- eutorta, Omogymna eutorta (W.H. Dall, 1915 †) - (OLIVIDAE) (FOSSIL)
- eutrapela, Cerithiopsis eutrapela J.C. Melvill & R. Standen, 1896 - (CERITHIOPSIDAE)
- eutrepha, Bythinella eutrepha (A. Paladilhe, 1867) - (BYTHINELLIDAE)
- eutrepha, Hydrobia eutrepha A. Paladilhe, 1867 - syn of: Bythinella eutrepha (A. Paladilhe, 1867) - (HYDROBIIDAE)
- Eutrephoceras, Genus Eutrephoceras Hyatt, 1894 † (NAUTILIDAE) (FOSSIL)
- EUTREPHOCERATIDAE - syn of Family: NAUTILIDAE
- eutrichum, Orthoceras eutrichum Whidborne † - (ORTHOCERATIDAE) (FOSSIL)
- Eutricolia, syn of: Genus Tricolia A. Risso, 1826 (PHASIANELLIDAE)
- Eutriloba, syn of: Genus Triloba W. von Vest, 1867 (CLAUSILIIDAE)
- Eutriphora, Genus Eutriphora B.C. Cotton & F.C. Godfrey, 1931 (TRIPHORIDAE)
- Eutriton, syn of: Genus Charonia J. von Gistel, 1848 (RANELLIDAE)
- Eutritonium, syn of: Genus Charonia J. von Gistel, 1848 (RANELLIDAE)
- Eutrochatella, Genus Eutrochatella P. Fischer, 1885 (HELICINIDAE)
- Eutrochus, syn of: Genus Astele W.J. Swainson, 1855 (CALLIOSTOMATIDAE)
- eutrochus, Ueckerconulus eutrochus (Laube, 1867 †) - (TROCHIDAE) (FOSSIL)
- eutrochus, Trochus eutrochus Laube, 1867 † - syn of: Ueckerconulus eutrochus (Laube, 1867 †) - (TROCHIDAE) (FOSSIL)
- eutropia, Eulimastoma eutropia (J.C. Melvill, 1899) - (PYRAMIDELLIDAE)
- eutropia, Odostomia eutropia J.C. Melvill, 1899 - syn of: Eulimastoma eutropia (J.C. Melvill, 1899) - (PYRAMIDELLIDAE)
- eutropia crassispira, Odostomia eutropia crassispira J.C. Melvill, 1910 - syn of: Eulimastoma eutropia (J.C. Melvill, 1899) - (PYRAMIDELLIDAE)
- Eutropidophora, syn of: Genus Tropidophora F.H. Troschel, 1847 (POMATIIDAE)
- eutropis, Ventridens eutropis H.A. Pilsbry, 1946 - (GASTRODONTIDAE)
- eutropis, Majorata eutropis (R.J. Shuttleworth, 1860) - (HYGROMIIDAE)
- Eutudora, Genus Eutudora J. Henderson & P. Bartsch, 1920 (POMATIIDAE)
- Eutudorella, syn of: Genus Eutudora J. Henderson & P. Bartsch, 1920 (POMATIIDAE)
- Eutudorisca, syn of: Genus Eutudora J. Henderson & P. Bartsch, 1920 (POMATIIDAE)
- Eutudorops, Genus Eutudorops J. Henderson & P. Bartsch, 1920 (POMATIIDAE)
- Euturrilites, Subgenus Turrilites (Euturrilites) Breistroffer, 1953 † (TURRILITIDAE) (FOSSIL)
- eutyches, Conotrochus eutyches J.C. Melvill, 1918 - syn of: Pagodatrochus variabilis (H. Adams, 1873) - (PLANITROCHIDAE)
- eutyches, Chondropoma eutyches H.A. Pilsbry, 1933 - (POMATIIDAE)
- eutyches, Seguenzia eutyches B.A. Marshall, 1991 - (SEGUENZIIDAE)
- eutyches, Minolia eutyches J.C. Melvill, 1918 - syn of: Pagodatrochus variabilis (H. Adams, 1873) - (SOLARIELLIDAE)
- Eutylus, Genus Eutylus Vincent, 1891 † (PHOLADIDAE) (FOSSIL)
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