- estabrookianus, Unio estabrookianus I. Lea, 1845 - syn of: Fusconaia barnesiana (I. Lea, 1829) - (UNIONIDAE)
- estalliana, Partula rosea estalliana A. Garrett, 1882 - (PARTULIDAE)
- estasia, Lucinoma estasia Glover & J.D. Taylor, 2016 - (LUCINIDAE)
- Estea, syn of: Genus Pisinna T.A. de M. Monterosato, 1878 (ANABATHRIDAE)
- estefaniae, Prunum estefaniae G. Pérez-Dionis, J.A. Ortea & J. Espinosa, 2009 - (MARGINELLIDAE)
- estefaniae, Coelocentrum arctispira estefaniae H.A. Pilsbry, 1902 - (UROCOPTIDAE)
- estella, Archinacella estella (Billings, 1865 †) - (ARCHINACELLIDAE) (FOSSIL)
- estella, Epiphragmophora estella A.V.M.D. D'Orbigny, 1837 - (EPIPHRAGMOPHORIDAE)
- estella, Coelocaulus estella (Billings, 1865 †) - (MURCHISONIIDAE) (FOSSIL)
- estella, Pleurotomaria estella J.W. Hall & R.P. Whitfield, 1872 † - (PLEUROTOMARIIDAE) (FOSSIL)
- estella centralis, Epiphragmophora estella centralis C.M.F. Ancey, 1901 - (EPIPHRAGMOPHORIDAE)
- Estellacar, Genus Estellacar T. Iredale, 1939 (NOETIIDAE)
- Estellarca, syn of: Genus Estellacar T. Iredale, 1939 (NOETIIDAE)
- estellensis, Bittium estellensis T.H. Aldrich, 1921 † - (CERITHIIDAE) (FOSSIL)
- estellensis, Eocypraea estellensis T.H. Aldrich, 1921 † - (EOCYPRAEIDAE) (FOSSIL)
- estensis, Eratoidea estensis T. McCleery, 2011 - (MARGINELLIDAE)
- estephaniae, Euglandina sowerbyana estephaniae (H. Strebel, 1875) - (SPIRAXIDAE)
- esterhazyi, Fatina esterhazyi Pavay † - (OSTREIDAE) (FOSSIL)
- esterias, Payraudeautia esterias P.A. Bernard, 1983 - syn of: Payraudeautia gruveli (P. Dautzenberg, 1910) - (NATICIDAE)
- esterlei, Pyrenaearia esterlei J.R. Bourguignat in É.A.A. Locard, 1894 - syn of: Pyrenaearia carascalensis (A. Michaud, 1831) - (HYGROMIIDAE)
- esther, Leucotina esther G.F. Angas, 1867 - syn of: Leucotina casta (A. Adams, 1853) - (AMATHINIDAE)
- esther, Dentimargo esther (W.H. Dall, 1927) - (MARGINELLIDAE)
- esther, Olivella esther W.H. Dall & C.T. Simpson, 1901 - syn of: Olivella petiolita (P.L. Duclos, 1835) - (OLIVELLIDAE)
- esther, Olivella esther P.L. Duclos, 1835 - syn of: Olivella ankeli J.M. Díaz & K. Götting, 1990 - (OLIVELLIDAE)
- esther, Olivella esther D. De Jong & H.E. Coomans, 1988 - syn of: Olivella ankeli J.M. Díaz & K. Götting, 1990 - (OLIVELLIDAE)
- estherae, Spixia estherae C. Fernández, 1971 - (ODONTOSTOMIDAE)
- estheriopsis, Malletia estheriopsis K.H. Barnard, 1963 - syn of: Malletia johnsoni A.H. Clarke, 1961 - (MALLETIIDAE)
- estheris, Pecten estheris Crema, 1903 - syn of: Pseudamussium peslutrae (C. Linnaeus, 1771) - (PECTINIDAE)
- esthetica, Sinutropis esthetica J. Perner, 1903 † - (EUOMPHALIDAE) (FOSSIL)
- esthetica, Leptozone esthetica J. Perner, 1907 † - (PLATYCERATIDAE) (FOSSIL)
- esthona, Kokenospira esthona (E.F.R.K. Koken, 1889 †) - (BUCANIIDAE) (FOSSIL)
- esthona, Loxoplocus esthona E.F.R.K. Koken & J. Perner, 1925 † - syn of: Loxoplocus sedgwicki J. Donald, 1906 † - (LOPHOSPIRIDAE) (FOSSIL)
- esthonicus, Arion esthonicus Poska-Teiss, 1927 - syn of: Mesarion subfuscus (J.P.R. Draparnaud, 1805) - (ARIONIDAE)
- esthonum, Pilina esthonum (E.F.R.K. Koken, 1897 †) - (TRYBLIDIIDAE) (FOSSIL)
- estivali, Continuconus estivali (R.G. Moolenbeek & G. Richard, 1995) - (CONIDAE)
- estona, Pterotheca estona Teichert, 1928 † - (PTEROTHECIDAE) (FOSSIL)
- estoniae, Lyckholmoceras estoniae Teichert, 1930 † - (DIESTOCERATIDAE) (FOSSIL)
- estonicum, Charactoceras estonicum E. Strand, 1934 † - (APSIDOCERATIDAE) (FOSSIL)
- estonicum, Beloitoceras estonicum Teichert, 1930 † - (ONCOCERATIDAE) (FOSSIL)
- estonicus, Tentaculites estonicus Lyashenko, 1958 † - (TENTACULITIDAE) (FOSSIL)
- estoniense, Cyrtendoceras estoniense Foerste, 1932 † - (CYRTENDOCERATIDAE) (FOSSIL)
- Estonioceras, Genus Estonioceras Noetling, 1883 † (ESTONIOCERATIDAE) (FOSSIL)
- ESTONIOCERATIDAE Hyatt in Zittel, 1900 † - Family (CEPHALOPODA-NAUTILOIDEA-TARPHYCERIDA) (FOSSIL)
- Estopupina, Subgenus Pupina (Estopupina) T. Iredale, 1937 (PUPINIDAE)
- estotensis, Circulus estotensis P. Lozouet, 1998 † - (TORNIDAE) (FOSSIL)
- estotiensis, Plaziatia estotiensis L. Dolin & P. Lozouet, 2004 † - (CYPRAEIDAE) (FOSSIL)
- estotiensis, Sukashitrochus estotiensis P. Lozouet, 1999 - (SCISSURELLIDAE)
- estrellana, Agladrillia estrellana (A.A. Olsson, 1922 †) - (DRILLIIDAE) (FOSSIL)
- estrellana, Panopea estrellana T.A. Conrad, 1857 - syn of: Panopea abrupta (T.A. Conrad, 1849) - (HIATELLIDAE)
- estrellana, Harvella estrellana A.A. Olsson, 1922 - syn of: Harvella elegans (Sowerby, 1825) - (MACTRIDAE)
- estrellana, Mactra estrellana A.A. Olsson, 1922 - syn of: Harvella elegans (Sowerby, 1825) - (MACTRIDAE)
- estrellana, Mactra estrellana A.A. Olsson, 1922 - syn of: Harvella elegans (Sowerby, 1825) - (MACTRIDAE)
- estrellana, Terebra estrellana A.A. Olsson, 1922 † - (TEREBRIDAE) (FOSSIL)
- estrellana tucilla, Harvella estrellana tucilla A.A. Olsson, 1932 - syn of: Harvella elegans (Sowerby, 1825) - (MACTRIDAE)
- estrellanus, Nodipecten estrellanus (T.A. Conrad, 1856 †) - (PECTINIDAE) (FOSSIL)
- estrellensis, Antillophos estrellensis (A.A. Olsson, 1922 †) - (NASSARIIDAE) (FOSSIL)
- estrelyado, Hoplodoris estrelyado T.M. Gosliner & D.W. Behrens, 1998 - (DISCODORIDIDAE)
- Estria, Genus Estria N.J. Poirier, 1887 (UROCYCLIDAE)
- estriata, Acteocina estriata (H.B. Preston, 1914) - (ACTEOCINIDAE)
- estuarii, Rhyssoplax estuarii Š. Brusina, 1870 - syn of: Rhyssoplax olivaceus (L. Spengler, 1797) - (CHITONIDAE)
- estuarina, Assiminea estuarina T. Habe, 1946 - (ASSIMINEIDAE)
- estuarina, Batillaria estuarina (R. Tate, 1893) - (BATILLARIIDAE)
- estuarina, Microglyphis estuarina (W.H. Dall, 1908) - (RINGICULIDAE)
- estuarinum, Bittium estuarinum R. Tate, 1893 - syn of: Batillaria estuarina (R. Tate, 1893) - (CERITHIIDAE)
- estuarinus, Potamopyrgus estuarinus M.J. Winterbourn, 1970 - (TATEIDAE)
- esuae, Cochlodina esuae H. Nordsieck, 2013 † - (CLAUSILIIDAE) (FOSSIL)
- esuanum, Cochlostoma esuanum G. Manganelli & F.L. Giusti, 1997 † - (COCHLOSTOMATIDAE) (FOSSIL)
- Esuinella, Genus Esuinella M. Harzhauser, T.A. Neubauer & E. Georgopoulou, 2014 † (HELICIDAE) (FOSSIL)
- esula, Iridina esula D'Orbigny, 1835 - syn of: Leila esula (A.V.M.D. D'Orbigny, 1835) - (IRIDINIDAE)
- esula, Leila esula (A.V.M.D. D'Orbigny, 1835) - (MYCETOPODIDAE)
- esuriens, Bittium esuriens (P.P. Carpenter, 1864) - (CERITHIIDAE)
- esuriens, Cyrtoceras esuriens (Barrande, 1866 †) - (ONCOCERIDA (unassigned)) (FOSSIL)
- esuriens, Gemmula esuriens W.H. Dall, 1908 - syn of: Borsonella callicesta (W.H. Dall, 1902) - (TURRIDAE)
- esuriens multifilosum, Bittium esuriens multifilosum P. Bartsch, 1907 - (CERITHIIDAE)
- esuriens pernoda, Gemmula esuriens pernoda W.H. Dall, 1908 - syn of: Borsonella callicesta (W.H. Dall, 1902) - (TURRIDAE)
- esuritor, Ashmunella chiricahuana esuritor H.A. Pilsbry, 1905 - (POLYGYRIDAE)
- esus, Fusiaphera esus J.M. Pacaud, Ledon & Loubry, 2015 † - (CANCELLARIIDAE) (FOSSIL)
- esutoruensis, Laevicardium esutoruensis Krishtofovich, 1957 † - syn of: Laevicardium tristiculum Yokoyama, 1924 † - (CARDIIDAE) (FOSSIL)
- esycha, Pteropurpura esycha (W.H. Dall, 1925) - (MURICIDAE)
- esychus, Aulacofusus esychus (W.H. Dall, 1907) - (BUCCINIDAE)
- esychus kujiana, Colus esychus kujiana R. Tiba, 1973 - syn of: Colus kujianus R. Tiba, 1973 - (BUCCINIDAE)
- esychus shikotanicus, Aulacofusus esychus shikotanicus (A.N. Golikov & V.V. Gulbin, 1977) - (BUCCINIDAE)
- eszterhazyi, Stephanoconus eszterhazyi Papp, 1897 † - (CONIDAE) (FOSSIL)
- eta, Mocella eta (L. Pfeiffer, 1853) - (CHAROPIDAE)
- eta, Charopa eta L. Pfeiffer, 1853 - syn of: Mocella eta (L. Pfeiffer, 1853) - (CHAROPIDAE)
- eta, Mandaloceras eta (C.H. Blake †) - (MANDALOCERATIDAE) (FOSSIL)
- etalense, Dentalium etalense Terquem & Piette † - (DENTALIIDAE) (FOSSIL)
- etalensis, Zygopleura etalensis (L.É.S. Piette, 1856 †) - (ZYGOPLEURIDAE) (FOSSIL)
- Etalia, Genus Etalia Begg & Campbell, 1985 † (BUCHIIDAE) (FOSSIL)
- Etalotrochus, Genus Etalotrochus Gründel & al., 2012 † (NODODELPHINULIDAE) (FOSSIL)
- Etayo, Prolyelliceras Etayo Serna, 1979 † - syn of: Prolyelliceras ulrichi (Knechtel, 1947 †) - (PROLYELLICERATIDAE) (FOSSIL)
- etayoi, Buchotrigonia etayoi Villamil, 1992 † - (BUCHOTRIGONIIDAE) (FOSSIL)
- etayosernai, Kutatissites etayosernai Kakabadze & Hoedemaeker, 2004 † - (ANCYLOCERATIDAE) (FOSSIL)
- etcheversi, Cymatium etcheversi O. Macsotay & B. Campos, 1993 - syn of: Cymatium raderi A. D'Attilio & B.W. Myers, 1984 - (RANELLIDAE)
- etchiensis, Tabantalites etchiensis Andrianov, 1985 † - (VIDRIOCERATIDAE) (FOSSIL)
- etchuensis, Echinophoria etchuensis K.M. Hatai & S. Nisiyama, 1949 † - (CASSIDAE) (FOSSIL)
- Etea, Genus Etea Conrad, 1873 † (ARCTICIDAE) (FOSSIL)
- etelkae, Cepaea etelkae (Halaváts, 1923) † - (HELICIDAE) (FOSSIL)
- etelkae, Viviparus etelkae Halaváts, 1914 † - (VIVIPARIDAE) (FOSSIL)
- etelvinae, Metula etelvinae L. Bozzetti, 2001 - (BUCCINIDAE)
- Eteoderoceras, Genus Eteoderoceras Edmunds, 2009 † (EODEROCERATIDAE) (FOSSIL)
- etequense, Exiteloceras etequense Lewy, 1969 † - (NOSTOCERATIDAE) (FOSSIL)
- etesiaca, Leptomyaria etesiaca (C. Hedley, 1909) - (SEMELIDAE)
- etesiaca, Tellina etesiaca C. Hedley, 1909 - syn of: Leptomyaria etesiaca (C. Hedley, 1909) - (TELLINIDAE)
- Ethalia, Genus Ethalia H. Adams & A. Adams, 1854 (TROCHIDAE)
- Ethaliella, Genus Ethaliella H.A. Pilsbry, 1905 (TROCHIDAE)
- Ethalion, syn of: Genus Aeolidiella L.S.R. Bergh, 1867 (AEOLIDIIDAE)
- Ethaliopsis, Subgenus Solariella (Ethaliopsis) Schepman, 1908 † (SOLARIELLIDAE) (FOSSIL)
- Ethaliopsis, syn of: Genus Bathymophila W.H. Dall, 1881 (SOLARIELLIDAE)
- ethekwini, Pseudorhaphitoma ethekwini R.N. Kilburn, 1993 - (MANGELIIDAE)
- ethelae, Scaphella dubia ethelae H.A. Pilsbry & A.A. Olsson, 1953 - (VOLUTIDAE)
- ethelema, Hemicycla ethelema J.F. Mabille, 1882 - (HELICIDAE)
- Etheria, Genus Etheria J.B.P.A. Lamarck, 1807 (ETHERIIDAE)
- etheridgei, Eurytus etheridgei J.W. Brazier, 1889 - syn of: Placostylus bivaricosus J.S. Gaskoin, 1854 - (AMPHIBULIMIDAE)
- etheridgei, Placostylus bivaricosus etheridgei C. Hedley, 1891 - (BOTHRIEMBRYONTIDAE)
- etheridgei, Grandostoma etheridgei (Reed, 1921 †) - (BUCANIIDAE) (FOSSIL)
- etheridgei, Bulimus etheridgei J.W. Brazier, 1889 - syn of: Placostylus bivaricosus J.S. Gaskoin, 1854 - (BULIMULIDAE)
- etheridgei, Bentosites etheridgei J.W. Brazier - (CAMAENIDAE)
- etheridgei, Inglisella etheridgei (R.M. Johnston, 1880) - (CANCELLARIIDAE)
- etheridgei, Appudiceras etheridgei Whitehouse, 1926 † - (DIPOLOCERATIDAE) (FOSSIL)
- etheridgei, Helicarion etheridgei J.W. Brazier, 1889 - (HELICARIONIDAE)
- etheridgei, Inoceramus etheridgei Woods † - (INOCERAMIDAE) (FOSSIL)
- etheridgei, Stutchburia etheridgei C.O. Waterhouse, 1987 † - (KALENTERIDAE) (FOSSIL)
- etheridgei, Labeceras etheridgei (Whitehouse, 1926 †) - (LABECERATIDAE) (FOSSIL)
- etheridgei, Montacuta etheridgei Johnston, 1887 † - syn of: Phestia darwini (de Koninck, 1877 †) - (MONTACUTIDAE) (FOSSIL)
- etheridgei, Gyrodoma etheridgei (Cresswell, 1893 †) - (MURCHISONIIDAE) (FOSSIL)
- etheridgei, Neritina etheridgei Roxo, 1924 † - (NERITIDAE) (FOSSIL)
- etheridgei, Nuculana etheridgei P.A. Maxwell, 1964 † - (NUCULANIDAE) (FOSSIL)
- etheridgei, Sthenodonta etheridgei (R. Tate, 1896 †) - (NUCULARCIDAE) (FOSSIL)
- etheridgei, Nucula etheridgei N.H. Ludbrook, 1966 † - (NUCULIDAE) (FOSSIL)
- etheridgei, Orthoceras etheridgei Blake † - (ORTHOCERATIDAE) (FOSSIL)
- etheridgei, Chaenomya etheridgei de Koninck, 1877 † - syn of: Cunavella etheridgei (de Koninck, 1877 †) - (PHOLADOMYIDAE) (FOSSIL)
- etheridgei, Paraplatyschisma etheridgei C.O. Waterhouse, 1987 † - (PLATYCERATIDAE) (FOSSIL)
- etheridgei, Tetranota carrickensis etheridgei Reed, 1921 † - (PLECTONOTIDAE) (FOSSIL)
- etheridgei, Dorsetensia etheridgei Whitehouse, 1924 † - syn of: Newmarracarroceras clarkei (Crick, 1894 †) - (SONNINIIDAE) (FOSSIL)
- etheridgei, Pisidium etheridgei E.A. Smith, 1882 - (SPHAERIIDAE)
- etheridgei, Turbo etheridgei (Tenison Woods, 1877 †) - (TURBINIDAE) (FOSSIL)
- etheridgei, Pachymyonia etheridgei Dun, 1932 † - (VACUNELLIDAE) (FOSSIL)
- etheridgei, Cunavella etheridgei (de Koninck, 1877 †) - (VACUNELLIDAE) (FOSSIL)
- etheridgei, Vacunella etheridgei de Koninck, 1877 † - syn of: Cunavella etheridgei (de Koninck, 1877 †) - (VACUNELLIDAE) (FOSSIL)
- etheridgei, Proxichione etheridgei (G.B. Pritchard, 1903 †) - (VENERIDAE) (FOSSIL)
- etheridgei, Parmellops etheridgei (J.W. Brazier, 1889) - (VITRINIDAE)
- etheridgeiformis, Cunavella etheridgeiformis Astafieva-Urbajtis, 1990 † - (VACUNELLIDAE) (FOSSIL)
- etheridgi, Pterotrigonia etheridgi (Lycett) † - (PTEROTRIGONIIDAE) (FOSSIL)
- etheridgii, Acteon etheridgii T. Bell, 1870 - syn of: Crenilabium exile (J.G. Jeffreys, 1870) - (ACTEONIDAE)
- etheridgii, Leurocycloceras etheridgii (C.H. Blake, 1882 †) - (KIONOCERATIDAE) (FOSSIL)
- ETHERIIDAE Deshayes, 1830 - Family (BIVALVIA-PALAEOHETERODONTA-UNIONIDA)
- etheringtoni, Laevicardium etheringtoni Slodkewitsch, 1938 † - (CARDIIDAE) (FOSSIL)
- etheringtoni, Heminautilus etheringtoni J.W. Durham, 1946 † - (CENOCERATIDAE) (FOSSIL)
- etheringtoni, Hexaplex etheringtoni E.H. Vokes, 1968 † - (MURICIDAE) (FOSSIL)
- Etheripecten, Genus Etheripecten Waterhouse, 1963 † (HETEROPECTINIDAE) (FOSSIL)
- ethica, Veremolpa ethica T. Iredale, 1930 - syn of: Timoclea scabra (S.C.T. Hanley, 1845) - (VENERIDAE)
- ethima, Transkeia ethima (J.C. Melvill & R. Standen, 1899) - (UNGULINIDAE)
- ethiopicum, Pisidium ethiopicum A. Korniushin, 1995 - (SPHAERIIDAE)
- ethiopius, Chicoreus corrugatus ethiopius E.H. Vokes, 1978 - (MURICIDAE)
- Ethminolia, Genus Ethminolia T. Iredale, 1924 (TROCHIDAE)
- Ethmocardium, Genus Ethmocardium White, 1880 † (CARDIIDAE) (FOSSIL)
- ethnographica, Monetaria ethnographica A. de Rochebrune, 1884 - syn of: Monetaria moneta (C. Linnaeus, 1758) - (CYPRAEIDAE)
- ethologus, Haliotis ethologus T. Iredale, 1927 - syn of: Haliotis brazieri hargravesi J.C. Cox, 1869 - (HALIOTIDAE)
- etiambrae, Kalidos etiambrae K.C. Emberton, 2007 - (ARIOPHANTIDAE)
- etiampicta, Pachydontella etiampicta J. Marwick, 1948 † - (TROCHIDAE) (FOSSIL)
- etiamque, Helix etiamque S. Clessin, 1887 - syn of: Faustina faustina (E.A. Rossmässler, 1835) - (HELICIDAE)
- Etidoris, syn of: Genus Thordisa L.S.R. Bergh, 1877 (DISCODORIDIDAE)
- etiennei, Syrnola etiennei (P. Dautzenberg, 1912) - (PYRAMIDELLIDAE)
- etiwanensis, Terebellum etiwanensis M. Tuomey & Holmes, 1857 † - (SERAPHSIDAE) (FOSSIL)
- etizenica, Alvania etizenica S. Nomura & H. Niino, 1940 - (RISSOIDAE)
- etna, Pleurotomaria etna Billings, 1865 † - syn of: Euconia etna (Billings, 1865 †) - (PLEUROTOMARIIDAE) (FOSSIL)
- etna, Euconia etna (Billings, 1865 †) - (SINUOPEIDAE) (FOSSIL)
- etolium, Epitonium etolium W.P. Woodring, 1928 † - (EPITONIIDAE) (FOSSIL)
- etolonensis, Littorina etolonensis V.N. Sinelnikova in Y.B. Gladenkov & V.N. Sinelnikova, 1990 - syn of: Littorina squalida W.J. Broderip & G.B. I Sowerby, 1829 - (LITTORINIDAE)
- etolonensis, Chlamys etolonensis V.N. Sinelnikova, 1990 † - (PECTINIDAE) (FOSSIL)
- etoushanense, Jinjiangoceras etoushanense Yang & Xiong, 1990 † - (ARAXOCERATIDAE) (FOSSIL)
- Etoushanoceras, Genus Etoushanoceras Yang & Xiong, 1990 † (ARAXOCERATIDAE) (FOSSIL)
- etowaensis, Lasmigona etowaensis (T.A. Conrad, 1849) - (UNIONIDAE)
- etrechyensis, Chiton etrechyensis de Rochebrune, 1882 † - syn of: Middendorfia corrugis (Boettger, 1869 †) - (CHITONIDAE) (FOSSIL)
- Etrema, Genus Etrema C. Hedley, 1918 (CLATHURELLIDAE)
- etrema, Cryoturris etrema W.P. Woodring, 1928 † - (MANGELIIDAE) (FOSSIL)
- etremoides, Vexillum etremoides (Finlay, 1924 †) - (COSTELLARIIDAE) (FOSSIL)
- Etremopa, Genus Etremopa K. Oyama, 1953 (CLATHURELLIDAE)
- Etremopsis, Genus Etremopsis A. Powell, 1942 (CLATHURELLIDAE)
- Etrona, syn of: Genus Trona F.P. Jousseaume, 1884 (CYPRAEIDAE)
- Etronsa, syn of: Genus Mauritia F.H. Troschel, 1863 (CYPRAEIDAE)
- etrurica, Aplexa etrurica C. Porro - syn of: Aplexa hypnorum (C. Linnaeus, 1758) - (PHYSIDAE)
- etrusca, Aporrhais etrusca M.M. Brunetti & M. Forli, 2013 † - (APORRHAIDAE) (FOSSIL)
- etrusca, Bythinella etrusca A. Paladilhe, 1867 - syn of: Bythinella schmidti (H.C. Küster, 1852) - (BYTHINELLIDAE)
- etrusca, Hypnophila etrusca M. Paulucci, 1886 - syn of: Hypnophila dohrni (M. Paulucci, 1882) - (COCHLICOPIDAE)
- etrusca, Cepaea nemoralis etrusca (E.A. Rossmässler, 1835) - (HELICIDAE)
- etrusca, Saccoia etrusca Gillet & al., 1965 † - (HYDROBIIDAE) (FOSSIL)
- etrusca, Melanopsis etrusca A. Brot, 1862 - (MELANOPSIDAE)
- etrusca, Melanopsis tricarinata etrusca A. Villa, 1862 - (MELANOPSIDAE)
- etrusca, Neritina etrusca C. De Stefani, 1880 † - syn of: Theodoxus groyanus (A.E.J. Férussac, 1823 †) - (NERITIDAE) (FOSSIL)
- etrusca, Vitrea etrusca M. Paulucci, 1878 - (PRISTILOMATIDAE)
- etrusca, Vertigo etrusca O. Böttger, 1905 - syn of: Isthmia pygmaea (J.P.R. Draparnaud, 1801) - (VERTIGINIDAE)
- etruscum, Angulaticeras etruscum Fucini, 1903 † - (SCHLOTHEIMIIDAE) (FOSSIL)
- etruscus, Tandonia etruscus A. Issel, 1868 - syn of: Tandonia sowerbyi (A.E.J. Férussac, 1823) - (MILACIDAE)
- etruscus, Theodoxus etruscus C. De Stefani, 1880 † - syn of: Theodoxus groyanus (A.E.J. Férussac, 1823 †) - (NERITIDAE) (FOSSIL)
- etruscus, Planorbarius etruscus J.R. Bourguignat, 1855 - syn of: Planorbarius corneus (C. Linnaeus, 1758) - (PLANORBIDAE)
- etruscus, Planorbarius corneus etruscus (E.A. Rossmässler, 1833) - (PLANORBIDAE)
- etruscus, Viviparus etruscus Malatesta, 1964 † - syn of: Viviparus belluccii C. De Stefani, 1880 † - (VIVIPARIDAE) (FOSSIL)
- etruscus narniensis, Viviparus etruscus narniensis O. Girotti, 1966 † - syn of: Viviparus belluccii narniensis (O. Girotti, 1966 †) - (VIVIPARIDAE) (FOSSIL)
- etterae, Eupleura caudata etterae (T. Say, 1822) - (MURICIDAE)
- etteri, Ocenebra etteri B.M. Landau & R. Houart, 2014 † - (MURICIDAE) (FOSSIL)
- etteri, Knefastia etteri B.M. Landau, F. Da Silva & S.M. Heitz, 2016 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- etuberculatus, Mastus etuberculatus (G.R. von Frauenfeld, 1867) - (ENIDAE)
- etuberulatus, Jaminia etuberulatus G.R. von Frauenfeld, 1867 - (ENIDAE)
- Eua, Subgenus Partula (Eua) H.A. Pilsbry & C.M. Cooke, 1934 (PARTULIDAE)
- Euacanthinula, syn of: Genus Acanthinula H.H. Beck, 1847 (VALLONIIDAE)
- Euactaeonina, Genus Euactaeonina Wenz, 1947 † (CEPHALASPIDA (unassigned)) (FOSSIL)
- euactis, Reineckeia euactis Steinmann, 1881 † - (REINECKEIIDAE) (FOSSIL)
- euaensis, Munditiella euaensis H.S. Ladd, 1970 † - (SKENEIDAE) (FOSSIL)
- Euaethiopina, Subgenus Achatina (Euaethiopina) J.C. Bequaert, 1950 (ACHATINIDAE)
- Euaethiops, syn of: Subgenus Achatina (Euaethiopina) J.C. Bequaert, 1950 (ACHATINIDAE)
- Euagassiceras, Genus Euagassiceras Spath, 1924 † (ARIETITIDAE) (FOSSIL)
- euages, Oscarboettgeria euages (O. Böttger, 1883) - (HYGROMIIDAE)
- euages gittenbergeri, Oscarboettgeria euages gittenbergeri V. Hüdec, 1971 - (HYGROMIIDAE)
- Eualcadia, syn of: Genus Alcadia J.E. Gray, 1840 (HELICINIDAE)
- eualdes, Fissidentalium eualdes (K.H. Barnard, 1963) - (DENTALIIDAE)
- Eualetes, Genus Eualetes A.M. Keen, 1971 (VERMETIDAE)
- Eualopia, syn of: Genus Alopia H. Adams & A. Adams, 1855 (CLAUSILIIDAE)
- Euamnicola, syn of: Genus Amnicola A. Gould & S.S. Haldeman, 1841 (AMNICOLIDAE)
- Euanana, Subgenus Diastole (Euanana) F.C. Baker, 1938 (EUCONULIDAE)
- euancycla, Serrata euancycla J. Gardner, 1937 † - (MARGINELLIDAE) (FOSSIL)
- Euanodonta, syn of: Genus Anodonta J.B.P.A. Lamarck, 1799 (UNIONIDAE)
- Euanodontia, Genus Euanodontia J.D. Taylor & E.A. Glover, 2005 (LUCINIDAE)
- Euaptetoceras, Genus Euaptetoceras Buckman, 1889 † (HAMMATOCERATIDAE) (FOSSIL)
- euaptetum, Euaptetoceras euaptetum Buckman † - (HAMMATOCERATIDAE) (FOSSIL)
- Euarchaica, Genus Euarchaica A.A. Schileyko, 1970 (HYGROMIIDAE)
- Euarinia, syn of: Genus Arinia H. Adams & A. Adams, 1856 (DIPLOMMATINIDAE)
- Euaspidoceras, Genus Euaspidoceras Jeannet, 1951 † (ASPIDOCERATIDAE) (FOSSIL)
- Euassiminea, syn of: Genus Assiminea J. Fleming, 1828 (ASSIMINEIDAE)
- Euaustenia, Subgenus Macrochlamys (Euaustenia) T.D.A. Cockerell, 1898 (ARIOPHANTIDAE)
- euaxes, Xerotricha euaxes C.A. Westerlund, 1893 - syn of: Xerotricha conspurcata (J.P.R. Draparnaud, 1801) - (HYGROMIIDAE)
- Euaxoctopus, Genus Euaxoctopus N.A. Voss, 1971 (OCTOPODIDAE)
- Eubaculites, Genus Eubaculites Spath , 1926 † (BACULITIDAE) (FOSSIL)
- Eubaicalia, Subgenus Baicalia (Eubaicalia) W.A. Lindholm, 1924 (AMNICOLIDAE)
- eubalia, Doris eubalia P. Fischer, 1872 - syn of: Doris sticta (T. Iredale & O'Donoghue, 1923) - (DORIDIDAE)
- eubalia, Onchidoris eubalia (P. Fischer, 1872) - (ONCHIDORIDIDAE)
- Eubela, Genus Eubela W.H. Dall, 1889 (RAPHITOMIDAE)
- Eubifidaria, syn of: Genus Gastrocopta T.V. Wollaston, 1878 (VERTIGINIDAE)
- Eubittium, syn of: Genus Bittium W.E. Leach in J.E. Gray, 1847 (CERITHIIDAE)
- euboea, Helix euboea G.R. von Frauenfeld, 1867 - syn of: Thiessea euboeae (G.R. von Frauenfeld, 1867) - (HELICIDAE)
- euboeae, Thiessea euboeae (G.R. von Frauenfeld, 1867) - (HELICIDAE)
- euboeae, Helix euboeae G.R. von Frauenfeld, 1867 - syn of: Thiessea euboeae (G.R. von Frauenfeld, 1867) - (HELICIDAE)
- euboeensis, Pseudobithynia euboeensis P. Glöer, A. Falniowski & V.M. Pešic, 2010 - (BITHYNIIDAE)
- euboeica, Monacha euboeica (W. Kobelt, 1877) - (HYGROMIIDAE)
- euboeicus, Doraegopis euboeicus R.A. Bank & H.P.M.G. Menkhorst, 1988 - (ZONITIDAE)
- euboeicus, Zonites euboeicus W. Kobelt, 1878 - (ZONITIDAE)
- euboicum, Cochlostoma euboicum (C.A. Westerlund, 1885) - (COCHLOSTOMATIDAE)
- eubooensis, Pseudobithynia eubooensis P. Glöer, A. Falniowski & V.M. Pešic, 2010 - (BITHYNIIDAE)
- Eubostrychoceras, Genus Eubostrychoceras Matsumoto, 1967 † (NOSTOCERATIDAE) (FOSSIL)
- EUBRANCHIDAE Odhner, 1934 - Family (GASTROPODA-HETEROBRANCHIA-OPISTHOBRANCHIA-NUDIPLEURA)
- Eubranchopsis, syn of: Genus Eubranchus E. Forbes, 1838 (EUBRANCHIDAE)
- Eubranchus, Genus Eubranchus E. Forbes, 1838 (EUBRANCHIDAE)
- Eubrancoceras, Subgenus Brancoceras (Eubrancoceras) Steinmann, 1881 † (BRANCOCERATIDAE) (FOSSIL)
- Eubranoceras, Genus Eubranoceras † (AMMONOIDEA (unassigned)) (FOSSIL)
- Eubrephulus, Subgenus Chondrula (Eubrephulus) A. Wagner, 1927 (ENIDAE)
- eubule, Tryblidium eubule (Billings, 1865 †) - (TRYBLIDIIDAE) (FOSSIL)
- eucaca, Anodonta eucaca G. Servain, 1885 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- Eucaladia, syn of: Genus Alcadia J.E. Gray, 1840 (HELICINIDAE)
- Eucallista, syn of: Genus Amiantis P.P. Carpenter, 1884 (VENERIDAE)
- eucallosus, Polinices eucallosus Gardner, 1947 † - (NATICIDAE) (FOSSIL)
- Eucalodium, Genus Eucalodium J.C.H. Crosse & P. Fischer, 1868 (UROCOPTIDAE)
- Eucalycoceras, Genus Eucalycoceras Spath , 1923 † (ACANTHOCERATIDAE) (FOSSIL)
- eucalypta, Hemicycla eucalypta J.F. Mabille, 1888 - syn of: Hemicycla ethelema J.F. Mabille, 1882 - (HELICIDAE)
- Eucampe, syn of: Genus Akera O.F. Müller, 1776 (AKERIDAE)
- Eucampylaea, syn of: Genus Campylaea H.H. Beck, 1837 (HELICIDAE)
- Eucardium, syn of: Genus Acanthocardia J.E. Gray, 1851 (CARDIIDAE)
- Eucasta, Genus Eucasta W.H. Dall, 1889 (CALLIOSTOMATIDAE)
- eucastus, Euchelus eucastus W.H. Dall, 1927 - (CHILODONTIDAE)
- Eucataulus, Subgenus Tortulosa (Eucataulus) W. Kobelt, 1902 (PUPINIDAE)
- Eucathaica, syn of: Genus Cathaica O.F. von Möllendorff, 1884 (BRADYBAENIDAE)
- Eucharilda, Genus Eucharilda T. Iredale, 1929 (PYRAMIDELLIDAE)
- eucharis, Kalidos eucharis (G.P. Deshayes in A.E.J. Férussac, 1840) - (ARIOPHANTIDAE)
- Eucharis, syn of: Genus Basterotia R. Hoernes, 1859 (BASTEROTIIDAE)
- eucharis, Glaucus eucharis R.P. Lesson, F. Péron & C.A. Lesueur, 1807 - (GLAUCIDAE)
- Eucharis, syn of: Genus Glaucus F. Forster, 1777 (GLAUCIDAE)
- eucharis, Trimarginites eucharis (A.V.M.D. D'Orbigny, 1850 †) - (OPPELIIDAE) (FOSSIL)
- eucharis, Miraclathurella eucharis W.P. Woodring, 1970 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- eucharis, Pseudozygopleura eucharis Hoare, 1961 † - (PSEUDOZYGOPLEURIDAE) (FOSSIL)
- eucharis, Raphistoma eucharis Billings, 1865 † - (RAPHISTOMATIDAE) (FOSSIL)
- eucharis, Triphora eucharis H.A. Rehder, 1980 - (TRIPHORIDAE)
- eucharista, Luchuena eucharista (H.A. Pilsbry, 1902) - (ENIDAE)
- eucharista, Cecilioides eucharista (J.R. Bourguignat, 1864) - (FERUSSACIIDAE)
- eucharista, Scissurella eucharista J.C. Melvill & R. Standen, 1912 - syn of: Scissurella clathrata H. Strebel, 1908 - (SCISSURELLIDAE)
- eucharista kasyotonis, Luchuena eucharista kasyotonis (J.T. Kuroda, 1945) - (ENIDAE)
- eucharista luchuana, Luchuena eucharista luchuana (H.A. Pilsbry, 1901) - (ENIDAE)
- eucharista oshimana, Luchuena eucharista oshimana (H.A. Pilsbry, 1902) - (ENIDAE)
- eucharistus, Moellendorffia eucharistus (H.A. Pilsbry, 1901) - (CAMAENIDAE)
- eucharistus tokunoensis, Moellendorffia eucharistus tokunoensis H.A. Pilsbry & Y. Hirase, 1903 - (CAMAENIDAE)
- eucharistus tokunoensis diminuta, Moellendorffia eucharistus tokunoensis diminuta H.A. Pilsbry & Y. Hirase, 1903 - (CAMAENIDAE)
- Euchasma, Genus Euchasma Billings , 1865 † (EOPTERIIDAE) (FOSSIL)
- Euchasmella, syn of: Genus Euchasma Billings , 1865 † (EOPTERIIDAE) (FOSSIL)
- euchasmus, Unio euchasmus É.A.A. Locard, 1899 - syn of: Unio abrantesianus É.A.A. Locard, 1899 - (UNIONIDAE)
- Eucheilodon, Genus Eucheilodon Gabb , 1860 † (TURRIDAE) (FOSSIL)
- Eucheliclanculus, Subgenus Clanculus (Eucheliclanculus) J.T. Kuroda, T. Habe & K. Oyama, 1971 (TROCHIDAE)
- eucheliformis, Danilia eucheliformis (S. Nomura & K.M. Hatai, 1940) - (CHILODONTIDAE)
- eucheliformis, Monodonta eucheliformis A.G. Beu & F.M. Climo, 1974 - (TROCHIDAE)
- euchelioides, Clanculus euchelioides R. Tate, 1893 - (TROCHIDAE)
- eucheloides, Calliotropis eucheloides B.A. Marshall, 1979 - (CALLIOTROPIDAE)
- Euchelus, Genus Euchelus R.A. Philippi, 1847 (CHILODONTIDAE)
- Euchemotrema, Subgenus Stenotrema (Euchemotrema) S. Archer, 1939 (POLYGYRIDAE)
- euchila, Tropidophora tricarinata euchila (L. Pfeiffer, 1851) - (POMATIIDAE)
- euchila, Alvania euchila (R.B. Watson, 1886) - (RISSOIDAE)
- euchilopteron, Lydiphnis euchilopteron (J.C. Melvill & R. Standen, 1903) - (TORNIDAE)
- euchilopteronoides, Cyclostrema euchilopteronoides M.M. Schepman, 1913 - (LIOTIIDAE)
- Euchilotheca, Genus Euchilotheca P. Fischer, 1882 † (CAVOLINIIDAE) (FOSSIL)
- Euchilus, Genus Euchilus Sandberger, 1870 † (BITHYNIIDAE) (FOSSIL)
- euchilus, Lithoglyphus euchilus Š. Brusina, 1902 † - (LITHOGLYPHIDAE) (FOSSIL)
- euchlora, Phycophila euchlora (J.E. Gray, 1850) - (APLYSIIDAE)
- euchlora, Aplysia euchlora J.E. Gray, 1850 - syn of: Phycophila euchlora (J.E. Gray, 1850) - (APLYSIIDAE)
- Euchondria, Genus Euchondria Meek, 1874 † (EUCHONDRIIDAE) (FOSSIL)
- EUCHONDRIIDAE Newell, 1938 † - Family (BIVALVIA-PTERIOMORPHIA-PECTINIDA) (FOSSIL)
- Euchondrioides, Genus Euchondrioides Fang, 1987 † (EUCHONDRIIDAE) (FOSSIL)
- Euchondrus, Genus Euchondrus O. Böttger, 1883 (ENIDAE)
- euchroa, Armina euchroa (L.S.R. Bergh, 1907) - (ARMINIDAE)
- euchroes, Drillia euchroes J.C. Melvill, 1912 - (DRILLIIDAE)
- euchromia, Sulfurina euchromia A.J. Wagner, 1905 - (HELICINIDAE)
- Euchrysalis, Genus Euchrysalis Laube, 1868 † (COELOSTYLINIDAE) (FOSSIL)
- eucidaricola, Trochostilifer eucidaricola A. Warén & R.G. Moolenbeek, 1989 - (EULIMIDAE)
- eucineata, Codringtonia eucineata (J.R. Bourguignat, 1857) - (HELICIDAE)
- eucineta, Codringtonia eucineta (J.R. Bourguignat, 1857) - (HELICIDAE)
- Euciphoceras, Genus Euciphoceras Schultz, 1976 † (NAUTILIDAE) (FOSSIL)
- Euciroa, Genus Euciroa W.H. Dall, 1881 (EUCIROIDAE)
- EUCIROIDAE Dall, 1895 - Family (BIVALVIA-HETERODONTA-EUHETERODONTA-ANOMALODESMATA)
- eucirrus, Unio eucirrus J.R. Bourguignat, 1857 - syn of: Unio mancus J.B.P.A. Lamarck, 1819 - (UNIONIDAE)
- eucistoera, Corbicula eucistoera P.M. Pallary, 1909 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- Eucithara, Genus Eucithara P. Fischer, 1883 (MANGELIIDAE)
- eucla, Gibberula eucla B.C. Cotton, 1944 - syn of: Gibberula diplostreptus (W.L. May, 1916) - (CYSTISCIDAE)
- eucla, Pleuroploca eucla B.C. Cotton, 1953 - syn of: Australaria australasia (G. Perry, 1811) - (FASCIOLARIIDAE)
- euclaensis, Cleotrivia euclaensis (C.N. Cate, 1979) - (TRIVIIDAE)
- Euclanculus, Subgenus Clanculus (Euclanculus) B.C. Cotton & F.C. Godfrey, 1934 † (TROCHIDAE) (FOSSIL)
- euclasta, Plagioptycha euclasta (R.J. Shuttleworth, 1854) - (CEPOLIDAE)
- euclasta, Euclastaria euclasta (R.J. Shuttleworth, 1852) - (SAGDIDAE)
- Euclasta, syn of: Subgenus Suavitas (Euclastaria) H.A. Pilsbry, 1926 (SAGDIDAE)
- euclasta, Acrocoptis euclasta C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- Euclastaria, Subgenus Suavitas (Euclastaria) H.A. Pilsbry, 1926 (SAGDIDAE)
- euclastolena, Monacha euclastolena J.F. Mabille, 1880 - syn of: Eutheba cantiana (G. Montagu, 1803) - (HYGROMIIDAE)
- Euclathurella, Genus Euclathurella W.P. Woodring, 1928 (CLATHURELLIDAE)
- euclatus, Microceramus euclatus C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- euclausus, Labyrinthus euclausus R.H. Beddome, 1908 - (CAMAENIDAE)
- eucleista, Natica eucleista C.F. Fontannes, 1879 † - (NATICIDAE) (FOSSIL)
- euclenzis, Apiotoma euclenzis N.H. Ludbrook, 1978 † - (COCHLESPIRIDAE) (FOSSIL)
- euclenzis, Monilea euclenzis N.H. Ludbrook, 1978 † - (TROCHIDAE) (FOSSIL)
- Eucleoteuthis, Genus Eucleoteuthis S.S. Berry, 1916 (OMMASTREPHIDAE)
- Euclia, Subgenus Cancellaria (Euclia) H. Adams & A. Adams, 1854 (CANCELLARIIDAE)
- euclia, Notocypraea pulicaria euclia W.R. Steadman & B.C. Cotton, 1946 - (CYPRAEIDAE)
- euclia, Divalucina euclia B.C. Cotton & F.C. Godfrey, 1938 - (LUCINIDAE)
- euclia, Charonia euclia T. Iredale, 1929 - syn of: Charonia lampas (C. Linnaeus, 1758) - (RANELLIDAE)
- euclia, Monoplex euclia B.C. Cotton, 1945 - syn of: Monoplex exaratus (L.A. Reeve, 1844) - (RANELLIDAE)
- euclia, Dosinia euclia B.C. Cotton & F.C. Godfrey, 1938 - syn of: Dosinia victoriae J.H. Gatliff & C.J. Gabriel, 1914 - (VENERIDAE)
- euclia instructa, Charonia euclia instructa T. Iredale, 1929 - syn of: Charonia lampas (C. Linnaeus, 1758) - (RANELLIDAE)
- Euclio, syn of: Genus Clio C. Linnaeus, 1767 (CLIIDAE)
- euclista, Omanifera euclista H. Nordsieck, 2015 † - (CLAUSILIIDAE) (FOSSIL)
- Euclista, syn of: Genus Isabellaria W. von Vest, 1867 (CLAUSILIIDAE)
- euclista, Ptychauchenia panhai euclista H. Nordsieck, 2016 - (CLAUSILIIDAE)
- Eucobresia, Genus Eucobresia F.C. Baker, 1929 (VITRINIDAE)
- Eucochlias, syn of: Genus Camaena J.A. Albers, 1850 (CAMAENIDAE)
- EUCOCHLIDAE Bandel, 2002 † - Family (GASTROPODA-VETIGASTROPODA) (FOSSIL)
- Eucochlis, Genus Eucochlis Knight, 1933 † (EUCOCHLIDAE) (FOSSIL)
- eucodium, Sphaerium eucodium J.R. Bourguignat in É.A.A. Locard, 1893 - syn of: Musculium lacustre (O.F. Müller, 1774) - (SPHAERIIDAE)
- Eucolina, Genus Eucolina A.L. Chavan, 1952 (NEWTONIELLIDAE)
- Eucominia, syn of: Genus Cominella J.E. Gray, 1850 (BUCCINIDAE)
- eucomista, Nassa eucomista J.C. Melvill & R. Standen, 1897 - syn of: Nassarius crematus R.B. Hinds, 1844 - (NASSARIIDAE)
- Euconactaeon, Subgenus Cylindrobullina (Euconactaeon) Meek, 1863 † (CYLINDROBULLINIDAE) (FOSSIL)
- Euconia, Genus Euconia Ulrich & Scofield, 1897 † (SINUOPEIDAE) (FOSSIL)
- euconica, Helicostyla euconica P. Bartsch, 1932 - (BRADYBAENIDAE)
- euconica, Clathrospira euconica (Butts, 1926 †) - (EOTOMARIIDAE) (FOSSIL)
- euconica, Pleurotomaria euconica Butts, 1926 † - syn of: Clathrospira euconica (Butts, 1926 †) - (PLEUROTOMARIIDAE) (FOSSIL)
- Euconodoma, Subgenus Microdoma (Euconodoma) Kues, 1990 † (MICRODOMATIDAE) (FOSSIL)
- Euconospira, Genus Euconospira Ulrich & Scofield, 1897 † (GOSSELETINIDAE) (FOSSIL)
- euconstricta, Distorsio euconstricta A.G. Beu, 1987 - (PERSONIDAE)
- EUCONULIDAE H.B. Baker, 1928 - Family (GASTROPODA-HETEROBRANCHIA-PULMONATA-STYLOMMATOPHORA)
- euconuliforma, Sitala euconuliforma K.C. Emberton, 2000 - (ARIOPHANTIDAE)
- Euconulops, syn of: Genus Euconulus O.W.H. Reinhardt, 1883 (EUCONULIDAE)
- euconulum, Calliostoma euconulum A.A. Olsson & A. Harbison, 1953 † - (CALLIOSTOMATIDAE) (FOSSIL)
- Euconulus, Genus Euconulus O.W.H. Reinhardt, 1883 (EUCONULIDAE)
- euconus, Kaliella euconus O.F. von Möllendorff, 1899 - (CHRONIDAE)
- euconus, Edentiella bielzi euconus (C.A. Westerlund, 1890) - (HYGROMIIDAE)
- Eucorbicula, syn of: Genus Corbicula J.K. Megerle Von Mühlfeld, 1811 (CYRENIDAE)
- Eucore, syn of: Genus Chondrula H.H. Beck, 1837 (ENIDAE)
- Eucoria, syn of: Genus Euciroa W.H. Dall, 1881 (EUCIROIDAE)
- eucoronata, Conasprella eucoronata (G.B. III Sowerby, 1903) - (CONIDAE)
- eucoronata, Minolia eucoronata G.B. III Sowerby, 1905 - syn of: Ethminolia impressa (G. Nevill & H. Nevill, 1869) - (SOLARIELLIDAE)
- Eucoroniceras, Genus Eucoroniceras Spath, 1922 † (AMMONOIDEA (unassigned)) (FOSSIL)
- Eucorys, Genus Eucorys A.G. Beu, 2008 (CASSIDAE)
- eucosmeta, Ascheria eucosmeta (Ascher, 1906 †) - (PROVANNIDAE) (FOSSIL)
- eucosmeta, Chemnitzia eucosmeta Ascher, 1906 † - syn of: Ascheria eucosmeta (Ascher, 1906 †) - (PYRAMIDELLIDAE) (FOSSIL)
- eucosmetus, Drymaeus eucosmetus F. Haas, 1955 - (BULIMULIDAE)
- eucosmia, Afriscrobs eucosmia W.H. Turton, 1932 - syn of: Afriscrobs africanus (P. Bartsch, 1915) - (ANABATHRIDAE)
- eucosmia, Thysanodonta eucosmia B.A. Marshall, 1995 - (CALLIOSTOMATIDAE)
- eucosmia, Calliostoma eucosmia P. Bartsch, 1915 - syn of: Calliostoma ornata (J.B.P.A. Lamarck, 1822) - (CALLIOSTOMATIDAE)
- eucosmia, Satsuma eucosmia (H.A. Pilsbry, 1895) - (CAMAENIDAE)
- eucosmia, Satsuma eucosmia (Kuroda, 1958) - (CAMAENIDAE)
- eucosmia, Cerion eucosmia H.A. Pilsbry & E.G. Vanatta, 1895 - (CERIONIDAE)
- eucosmia, Stenodrillia eucosmia W.H. Dall, 1889 - syn of: Compsodrillia eucosmia (W.H. Dall, 1889) - (DRILLIIDAE)
- eucosmia, Pyramidelloides eucosmia P. Bartsch, 1915 - syn of: Pyramidelloides mirandus (A. Adams, 1861) - (EULIMIDAE)
- eucosmia, Ischnochiton eucosmia W.H. Turton, 1932 - syn of: Ischnochiton oniscus (C.F.F. von Krauss, 1848) - (ISCHNOCHITONIDAE)
- eucosmia, Cardiolucina eucosmia (W.H. Dall, 1901) - (LUCINIDAE)
- eucosmia, Phacoides eucosmia W.H. Dall, 1901 - syn of: Cardiolucina eucosmia (W.H. Dall, 1901) - (LUCINIDAE)
- eucosmia, Mangelia eucosmia P. Bartsch, 1915 - (MANGELIIDAE)
- eucosmia, Marginella eucosmia P. Bartsch, 1915 - (MARGINELLIDAE)
- eucosmia, Mitra eucosmia W.H. Turton, 1932 - syn of: Austromitra kowieensis (G.B. III Sowerby, 1901) - (MITRIDAE)
- eucosmia, Cellana eucosmia (H.A. Pilsbry, 1892) - (NACELLIDAE)
- eucosmia, Nassa eucosmia W.H. Turton, 1932 - syn of: Nassarius kochianus (R.W. Dunker, 1846) - (NASSARIIDAE)
- eucosmia, Eumetula eucosmia (P. Bartsch, 1911) - (NEWTONIELLIDAE)
- eucosmia, Pecten eucosmia W.H. Turton, 1932 - syn of: Pascahinnites coruscans (R.B. Hinds, 1845) - (PECTINIDAE)
- Eucosmia, syn of: Genus Tricolia A. Risso, 1826 (PHASIANELLIDAE)
- eucosmia, Compsodrillia eucosmia (W.H. Dall, 1889) - (PSEUDOMELATOMIDAE)
- eucosmia, Iolaea eucosmia W.H. Dall & P. Bartsch, 1909 - (PYRAMIDELLIDAE)
- eucosmia, Rissoina eucosmia P. Bartsch, 1915 - syn of: Pyramidelloides mirandus (A. Adams, 1861) - (RISSOINIDAE)
- eucosmia, Minolia eucosmia H.A. Pilsbry, 1895 - (SOLARIELLIDAE)
- eucosmia, Clanculus eucosmia W.H. Turton, 1932 - syn of: Clanculus miniatus (H.E. Anton, 1838) - (TROCHIDAE)
- eucosmia, Gibbula eucosmia H.A. Pilsbry, 1895 - syn of: Cantharidus urbanus (A.A. Gould, 1861) - (TROCHIDAE)
- eucosmia, Turritella eucosmia W.H. Turton, 1932 - syn of: Afriscrobs africanus (P. Bartsch, 1915) - (TURRITELLIDAE)
- eucosmia erabuana, Satsuma eucosmia erabuana (Kuroda, 1958) - (CAMAENIDAE)
- eucosmium, Cerion regina eucosmium H.A. Pilsbry & E.G. Vanatta, 1895 - (CERIONIDAE)
- eucosmium, Helisoma eucosmium (P. Bartsch, 1908) - (PLANORBIDAE)
- eucosmius, Ancistrolepis eucosmius (W.H. Dall, 1891) - (BUCCINIDAE)
- eucosmius, Fusinus eucosmius W.H. Dall, 1889 - syn of: Fusinus excavatus (G.B. III Sowerby, 1880) - (FASCIOLARIIDAE)
- eucosmius, Fusus eucosmius W.H. Dall, 1889 - syn of: Fusinus excavatus (G.B. III Sowerby, 1880) - (FASCIOLARIIDAE)
- eucosmius, Charadreon eucosmius (H.A. Pilsbry & A.A. Olsson, 1935 †) - (PSEUDOMELANIIDAE) (FOSSIL)
- eucosmius bicinctus, Ancistrolepis eucosmius bicinctus W.H. Dall, 1919 - (BUCCINIDAE)
- eucosmius californicus, Ancistrolepis eucosmius californicus W.H. Dall, 1919 - syn of: Ancistrolepis californicus W.H. Dall, 1919 - (BUCCINIDAE)
- eucosmius koyamai, Ancistrolepis eucosmius koyamai T. Habe & K. Itô, 1971 - (BUCCINIDAE)
- eucosmobasis, Turbonilla eucosmobasis W.H. Dall & P. Bartsch, 1907 - (PYRAMIDELLIDAE)
- eucosmus, Limopsis eucosmus J.C. Verco, 1907 - (LIMOPSIDAE)
- Eucrassatella, Genus Eucrassatella T. Iredale, 1924 (CRASSATELLIDAE)
- Eucrassinella, syn of: Genus Eucrassatella T. Iredale, 1924 (CRASSATELLIDAE)
- Eucryptaenia, syn of: Genus Liospira Ulrich & Scofield, 1897 † (EOTOMARIIDAE) (FOSSIL)
- Eucryptelasmus, Subgenus Cryptelasmus (Eucryptelasmus) M.L. Jaume & P. Sánchez, 1943 (SUBULINIDAE)
- eucteana, Turbonilla eucteana J.C. Melvill, 1910 - (PYRAMIDELLIDAE)
- eucteanus, Typhina eucteanus W.P. Woodring, 1970 † - (MURICIDAE) (FOSSIL)
- eucycla, Promathildia eucycla (Hebert & Eudes-Deslongchamps, 1860 †) - (GORDENELLIDAE) (FOSSIL)
- eucycla, Tricarilda eucycla (Hébert & Eudes-Deslongchamps, 1860 †) - (MATHILDIDAE) (FOSSIL)
- eucycla, Spirocyclina eucycla (Laube, 1869 †) - (OPISTHOBRANCHIA (unassigned)) (FOSSIL)
- eucycla, Turritella eucycla Hébert & Eudes-Deslongchamps, 1860 † - syn of: Tricarilda eucycla (Hébert & Eudes-Deslongchamps, 1860 †) - (TURRITELLIDAE) (FOSSIL)
- Eucyclacea, syn of: Genus Trochoidea T. Brown, 1827 (HYGROMIIDAE)
- EUCYCLIDAE Koken, 1896 † - Family (GASTROPODA-VETIGASTROPODA) (FOSSIL)
- Eucycloceras, Genus Eucycloceras Spath, 1924 † (MACROCEPHALITIDAE) (FOSSIL)
- Eucycloidea, Genus Eucycloidea Hudleston, 1887 † (EUCYCLIDAE) (FOSSIL)
- eucycloides, Teretrina eucycloides F. Haas, 1953 † - (MATHILDIDAE) (FOSSIL)
- Eucyclomphalus, Genus Eucyclomphalus von Ammon, 1892 † † (CHILODONTIDAE) (FOSSIL)
- Eucyclophalus, Genus Eucyclophalus von Ammon, 1892 (CHILODONTIDAE)
- Eucyclophalus, syn of: Genus Eucyclomphalus von Ammon, 1892 † † (CHILODONTIDAE) (FOSSIL)
- Eucyclophorus, syn of: Genus Cyclophorus P.D. Montfort, 1810 (CYCLOPHORIDAE)
- Eucycloscala, Genus Eucycloscala Cossmann, 1895 † (EUCYCLOSCALIDAE) (FOSSIL)
- EUCYCLOSCALIDAE Gründel, 2007 † - Family (GASTROPODA-VETIGASTROPODA) (FOSSIL)
- Eucyclostoma, syn of: Genus Eucyclotoma O. Böttger, 1895 (RAPHITOMIDAE)
- Eucyclotoma, Genus Eucyclotoma O. Böttger, 1895 (RAPHITOMIDAE)
- Eucyclotus, syn of: Genus Cyclotus W.J. Swainson, 1840 (CYCLOPHORIDAE)
- Eucyclus, Genus Eucyclus Eudes-Deslongchamps, 1860 † (EUCYCLIDAE) (FOSSIL)
- eucylindrica, Lanceolaria eucylindrica G.Y. Lin, 1962 - (UNIONIDAE)
- eucymata, Callpita eucymata (W.H. Dall, 1890) - (VENERIDAE)
- eucymata, Periglypta eucymata W.H. Dall, 1890 - syn of: Callpita eucymata (W.H. Dall, 1890) - (VENERIDAE)
- Eucymatoceras, Genus Eucymatoceras Spath, 1927 † (CYMATOCERATIDAE) (FOSSIL)
- eucymatus, Boreotrophon eucymatus (W.H. Dall, 1902) - (MURICIDAE)
- eucymatus, Pecten eucymatus W.H. Dall, 1898 - syn of: Catillopecten eucymatus (W.H. Dall, 1898) - (PECTINIDAE)
- eucymatus, Catillopecten eucymatus (W.H. Dall, 1898) - (PROPEAMUSSIIDAE)
- Eucymba, Genus Eucymba Dall, 1890 † (NEOGASTROPODA (unassigned)) (FOSSIL)
- eucypha, Anodonta eucypha J.R. Bourguignat, 1881 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- Eucypraedia, Genus Eucypraedia Schilder, 1939 (PEDICULARIIDAE) (FOSSIL)
- eudactylota, Hancockia eudactylota P.H. Gosse, 1877 - (HANCOCKIIDAE)
- eudaedalea, Venericardia eudaedalea J.F. Bayan, 1873 † - (CARDITIDAE) (FOSSIL)
- eudaidalus, Phacoides eudaidalus C.J. Maury, 1924 † - (LUCINIDAE) (FOSSIL)
- eudakowi, Helicella eudakowi Skvortsov, 1938 - syn of: Helicopsis striata (O.F. Müller, 1774) - (HYGROMIIDAE)
- Eudaphne, syn of: Genus Daphnella R.B. Hinds, 1844 (RAPHITOMIDAE)
- Eudaphnella, syn of: Genus Daphnella R.B. Hinds, 1844 (RAPHITOMIDAE)
- Eudaronia, Genus Eudaronia B.C. Cotton, 1945 (SEGUENZIOIDEA (unassigned))
- Eudaudebardia, syn of: Genus Daudebardia Hertmann, 1821 (OXYCHILIDAE)
- eudedalaeus, Mediterranea eudedalaeus J.R. Bourguignat, 1856 - syn of: Mediterranea hydatina (E.A. Rossmässler, 1838) - (OXYCHILIDAE)
- eudeila, Chama eudeila C.J. Maury, 1924 † - (CHAMIDAE) (FOSSIL)
- eudeli, Satsuma bairdi eudeli A. Adams, 1870 - (CAMAENIDAE)
- eudeli, Tribia eudeli G.B. III Sowerby, 1893 - syn of: Tribia angasi (J.C.H. Crosse, 1863) - (CANCELLARIIDAE)
- eudeli, Cancellaria eudeli G.B. III Sowerby, 1893 - syn of: Tribia angasi (J.C.H. Crosse, 1863) - (CANCELLARIIDAE)
- eudeli, Joculator eudeli M. Jay & J. Drivas, 2002 - (CERITHIOPSIDAE)
- eudeli, Nodilittorina eudeli G.B. III Sowerby, 1915 - syn of: Echinolittorina feejeensis (L.A. Reeve, 1857) - (LITTORINIDAE)
- eudeli, Gingicithara eudeli G.B. Sowerby, 1901 - syn of: Gingicithara notabilis (E.A. Smith, 1888) - (MANGELIIDAE)
- eudeli, Plicopurpura eudeli (G.B. III Sowerby, 1903) - (MURICIDAE)
- eudeli, Clithon eudeli (G.B. III Sowerby, 1917 †) - (NERITIDAE) (FOSSIL)
- eudeli, Minolia eudeli G.P. Deshayes, 1863 - (SOLARIELLIDAE)
- eudeli, Pelecyora eudeli (E. Fischer-Piette & D. Delmas, 1967) - (VENERIDAE)
- Eudentalium, Genus Eudentalium H.A. Pilsbry & B. Sharp, 1897 (DENTALIIDAE)
- eudesdeslongchampsi, Dentiterquemia eudesdeslongchampsi Hautmann & Golej, 2004 † - (PROSPONDYLIDAE) (FOSSIL)
- eudesianum, Lytoceras eudesianum (A.V.M.D. D'Orbigny, 1846 †) - (LYTOCERATIDAE) (FOSSIL)
- eudesii, Dicroloma eudesii (L.É.S. Piette, 1864 †) - (APORRHAIDAE) (FOSSIL)
- eudesii, Pterocera eudesii L.É.S. Piette, 1864 † - syn of: Dicroloma eudesii (L.É.S. Piette, 1864 †) - (STROMBIDAE) (FOSSIL)
- Eudiancta, syn of: Genus Diancta E.C. Von Martens, 1867 (DIPLOMMATINIDAE)
- eudianthe, Mitra eudianthe J.C. Melvill, 1895 - syn of: Vexillum modestum (L.A. Reeve, 1845) - (MITRIDAE)
- eudilica, Albinaria munda eudilica (H. von Maltzan, 1884) - (CLAUSILIIDAE)
- eudioptus, Bulimulus eudioptus (H.F.A. von Ihering in H.A. Pilsbry, 1897) - (BULIMULIDAE)
- eudioptus, Protoglyptus eudioptus H.F.A. von Ihering in H.A. Pilsbry, 1897 - syn of: Bulimulus eudioptus (H.F.A. von Ihering in H.A. Pilsbry, 1897) - (ORTHALICIDAE)
- Eudioptus, Subgenus Simpulopsis (Eudioptus) J.A. Albers, 1860 (SIMPULOPSIDAE)
- Eudiopus, syn of: Genus Simpulopsis H.H. Beck, 1837 (SIMPULOPSIDAE)
- Eudiplommatina, syn of: Genus Diplommatina W.H. Benson, 1849 (DIPLOMMATINIDAE)
- Eudiscoceras, Genus Eudiscoceras Meek, 1877 † (CERATITIDA (unassigned)) (FOSSIL)
- eudiscus, Seminolina eudiscus (H.A. Pilsbry, 1934) - (PLANORBIDAE)
- Eudissoceras, Genus Eudissoceras Miller & Owen, 1937 † (RECTOCLYMENIIDAE) (FOSSIL)
- Eudistemma, syn of: Subgenus Holospira (Bostrichocentrum) H. Strebel & G.J. Pfeffer, 1880 (UROCOPTIDAE)
- Eudmetoceras, Genus Eudmetoceras Buckman, 1920 † (HAMMATOCERATIDAE) (FOSSIL)
- eudmetum, Eudmetoceras eudmetum Buckman, 1920 † - (HAMMATOCERATIDAE) (FOSSIL)
- Eudoceras, Genus Eudoceras Hyatt, 1884 † (ONCOCERIDA (unassigned)) (FOSSIL)
- eudochila, Abida eudochila J.R. Bourguignat, 1883 - syn of: Abida secale affinis E.A. Rossmässler, 1839 - (CHONDRINIDAE)
- Eudolichotis, Subgenus Plekocheilus (Eudolichotis) H.A. Pilsbry, 1896 (AMPHIBULIMIDAE)
- Eudolium, Genus Eudolium W.H. Dall, 1889 (TONNIDAE)
- Eudontostomus, syn of: Genus Spixia H.A. Pilsbry & E.G. Vanatta, 1898 (ODONTOSTOMIDAE)
- eudora, Natica eudora D'Orbigny, 1850 † - (NATICIDAE) (FOSSIL)
- eudora, Octopus eudora J.E. Gray, 1849 - syn of: Octopus vulgaris G.L.C.F.D. Cuvier, 1797 - (OCTOPODIDAE)
- eudora, Patella eudora T. Iredale, 1940 - syn of: Cellana radiata (I. von Born, 1778) - (PATELLIDAE)
- Eudora, syn of: Genus Tricolia A. Risso, 1826 (PHASIANELLIDAE)
- eudora, Trochomorpha eudora (G.F. Angas, 1869) - (TROCHOMORPHIDAE)
- eudora, Felaniella eudora (G.P. Deshayes, 1857 †) - (UNGULINIDAE) (FOSSIL)
- eudora, Anodonta eudora J.R. Bourguignat, 1887 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- eudoxia, Mexicardia eudoxia W.H. Dall, 1916 - syn of: Mexicardia procerum panamense (G.B. I Sowerby, 1833) - (CARDIIDAE)
- Eudoxochiton, Genus Eudoxochiton R.J. Shuttleworth, 1853 (CALLOCHITONIDAE)
- Eudoxoplax, syn of: Genus Eudoxochiton R.J. Shuttleworth, 1853 (CALLOCHITONIDAE)
- Eudoxoplax, syn of: Genus Eudoxochiton R.J. Shuttleworth, 1853 (CALLOCHITONIDAE)
- eudoxus, Aulacostephanoceras eudoxus (A.V.M.D. D'Orbigny, 1850 †) - (AULACOSTEPHANIDAE) (FOSSIL)
- Eudoxus, syn of: Subgenus Helicostyla (Opalliostyla) H.A. Pilsbry, 1896 (BRADYBAENIDAE)
- Eudrastus, syn of: Genus Peronia J. Fleming, 1822 (ONCHIDIIDAE)
- Euechioceras, Genus Euechioceras Trueman & Williams, 1925 † (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- eueides, Araiofusus eueides Callomon & Snyder, 2017 - (FASCIOLARIIDAE)
- euekes, Fusinus euekes Callomon & Snyder, 2017 - (FASCIOLARIIDAE)
- euelpis, Chromodoris euelpis L.S.R. Bergh, 1907 - (CHROMODORIDIDAE)
- euengonia, Cryoturris euengonia W.P. Woodring, 1928 † - (MANGELIIDAE) (FOSSIL)
- euetha, Cernuella euetha C. Cafici, 1884 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- euetrios, Cancellaria euetrios K.H. Barnard, 1959 - (CANCELLARIIDAE)
- euetrios, Conus euetrios G.B. III Sowerby, 1882 - syn of: Cylinder textile (C. Linnaeus, 1758) - (CONIDAE)
- Eufalagonia, Genus Eufalagonia M.R. Cooper, 2015 † (PTEROTRIGONIIDAE) (FOSSIL)
- eufalensis, Linotrigonia eufalensis (W.M. Gabb, 1860 †) - (PTEROTRIGONIIDAE) (FOSSIL)
- eufalensis, Aenona eufalensis (T.A. Conrad, 1860 †) - (TELLINIDAE) (FOSSIL)
- eufaulensis, Trachycardium eufaulensis T.A. Conrad, 1860 † - (CARDIIDAE) (FOSSIL)
- eufaulensis, Nemodon eufaulensis (W.M. Gabb, 1860 †) - (PARALLELODONTIDAE) (FOSSIL)
- eufaulensis, Scabrotrigonia eufaulensis (W.M. Gabb, 1860 †) - (PTEROTRIGONIIDAE) (FOSSIL)
- eufaulensis, Aenona eufaulensis (T.A. Conrad, 1860 †) - (TELLINIDAE) (FOSSIL)
- eufaulensis, Trigonia eufaulensis W.M. Gabb, 1860 † - syn of: Scabrotrigonia eufaulensis (W.M. Gabb, 1860 †) - (TRIGONIIDAE) (FOSSIL)
- eufaulensis, Aphrodina eufaulensis (T.A. Conrad, 1860 †) - (VENERIDAE) (FOSSIL)
- eufaulensis gabbi, Scabrotrigonia eufaulensis gabbi (L.W. Stephenson, 1941 †) - (PTEROTRIGONIIDAE) (FOSSIL)
- eufaulensis gabbi, Trigonia eufaulensis gabbi L.W. Stephenson, 1941 † - syn of: Scabrotrigonia eufaulensis gabbi (L.W. Stephenson, 1941 †) - (TRIGONIIDAE) (FOSSIL)
- eufaulensis moorei, Scabrotrigonia eufaulensis moorei (L.W. Stephenson, 1941 †) - (PTEROTRIGONIIDAE) (FOSSIL)
- eufaulensis moorei, Trigonia eufaulensis moorei L.W. Stephenson, 1941 † - syn of: Scabrotrigonia eufaulensis moorei (L.W. Stephenson, 1941 †) - (TRIGONIIDAE) (FOSSIL)
- Eufenella, syn of: Genus Obtortio Hedley, 1899 † (DIASTOMATIDAE) (FOSSIL)
- Euferussacia, syn of: Genus Ferussacia A. Risso, 1826 (FERUSSACIIDAE)
- Eufira, syn of: Genus Iridina Lamarck, 1819 (IRIDINIDAE)
- Eufistulana, Genus Eufistulana F.E. Eames, 1951 (GASTROCHAENIDAE)
- Euflemingites, Genus Euflemingites Spath , 1934 † (FLEMINGITIDAE) (FOSSIL)
- Eufretum, Subgenus Orpiella (Eufretum) F.C. Baker, 1941 (HELICARIONIDAE)
- Eugabrielona, Genus Eugabrielona C.J.S. Hickman & J.H. McLean, 1990 (PHASIANELLIDAE)
- Eugaimardia, Genus Eugaimardia B.C. Cotton, 1931 (CYAMIIDAE)
- euganea, Helix euganea G. Stabile, 1864 - syn of: Faustina illyrica (G. Stabile, 1864) - (HELICIDAE)
- eugastora, Otala eugastora J.R. Bourguignat, 1883 - syn of: Otala punctata (O.F. Müller, 1774) - (HELICIDAE)
- Eugemmula, syn of: Genus Gemmula H.C. Weinkauff, 1875 (TURRIDAE)
- eugena, Odostomia eugena W.H. Dall & P. Bartsch, 1909 - (PYRAMIDELLIDAE)
- eugenei, Clathropsis eugenei A. Cecalupo & I. Perugia, 2014 - (CERITHIOPSIDAE)
- eugenei, Colubraria eugenei L. Bozzetti & M. Lussi, 1991 - (COLUBRARIIDAE)
- eugenei, Parachiton eugenei (P. Kaas & R.A. Van Belle, 1985) - (LEPTOCHITONIDAE)
- eugenei, Kermia eugenei R.N. Kilburn, 2009 - (RAPHITOMIDAE)
- eugenense, Boreoscala condoni eugenense J.W. Durham, 1937 - (EPITONIIDAE)
- eugenes, Solariorbis eugenes A.A. Olsson & A. Harbison, 1953 † - (TORNIDAE) (FOSSIL)
- eugeni, Eocypraea acuminata eugeni (G.P. Deshayes, 1865 †) - (EOCYPRAEIDAE) (FOSSIL)
- Eugenia, syn of: Genus Papuina E.C. Von Martens, 1860 (CAMAENIDAE)
- eugenia, Paraliospira eugenia (Billings, 1865 †) - (EOTOMARIIDAE) (FOSSIL)
- eugenia, Gymnobela eugenia A.V. Sysoev & D.L. Ivanov, 1985 - (RAPHITOMIDAE)
- eugeniae, Reiflingites eugeniae Arthaber, 1896 † - (BALATONITIDAE) (FOSSIL)
- eugeniae, Gracilinenia eugeniae (W. Polinski, 1921) - (CLAUSILIIDAE)
- eugeniae, Erronea eugeniae C.N. Cate, 1975 - syn of: Erronea xanthodon (J.E. Gray in G.B. I Sowerby, 1832) - (CYPRAEIDAE)
- eugeniae, Murella globularis eugeniae (L. Pfeiffer, 1853) - (HELICIDAE)
- eugeniae, Pyrgula eugeniae (M. von Neumayr in Herbich & M. von Neumayr, 1875 †) - (HYDROBIIDAE) (FOSSIL)
- eugeniae, Panamurex eugeniae E.H. Vokes, 1992 - (MURICIDAE)
- eugeniae, Mipus eugeniae (M. Bernardi, 1853) - (MURICIDAE)
- eugeniae, Elysia eugeniae J.A. Ortea & J. Espinosa, 2002 - (PLAKOBRANCHIDAE)
- eugeniae, Tropidophora eugeniae L.A. Reeve, 1857 - (POMATIIDAE)
- eugeniae, Chrysallida eugeniae A. Peñas & E. Rolán, 1998 - (PYRAMIDELLIDAE)
- eugeniae, Turbonilla eugeniae (E. Saurin, 1959) - (PYRAMIDELLIDAE)
- eugeniae, Valvata eugeniae M. von Neumayr in Herbich & M. von Neumayr, 1875 † - (VALVATIDAE) (FOSSIL)
- eugeniae bifrons, Valvata eugeniae bifrons M. von Neumayr in Herbich & M. von Neumayr, 1875 † - (VALVATIDAE) (FOSSIL)
- eugeniae gibbulaeformis, Valvata eugeniae gibbulaeformis Š. Brusina, 1902 † - (VALVATIDAE) (FOSSIL)
- Eugeniconus, Genus Eugeniconus A.J. Da Motta, 1991 (CONIDAE)
- eugeniforme, Peltoceratoides eugeniforme (W.J. Arkell, 1944 †) - (ASPIDOCERATIDAE) (FOSSIL)
- eugeniforme, Peltomorphites eugeniforme Arkell, 1944 † - syn of: Peltoceratoides eugeniforme (W.J. Arkell, 1944 †) - (ASPIDOCERATIDAE) (FOSSIL)
- eugenii, Peltoceratoides eugenii (Raspail, 1842 †) - (ASPIDOCERATIDAE) (FOSSIL)
- eugenii, Bythinella eugenii E. Jekelius, 1944 † - (BYTHINELLIDAE) (FOSSIL)
- eugenii, Theodoxus eugenii E. Jekelius, 1944 † - (NERITIDAE) (FOSSIL)
- eugenii, Graphis eugenii (G.P. Deshayes, 1861 †) - (TOFANELLIDAE) (FOSSIL)
- eugenii longatolineatus, Theodoxus eugenii longatolineatus Papp, 1953 † - (NERITIDAE) (FOSSIL)
- Eugeomalacus, syn of: Genus Geomalacus G.J. Allman, 1842 (ARIONIDAE)
- eugibba, Katelysia eugibba Z. Zhuang, 1964 - syn of: Marcia hiantina (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- Euglandina, Genus Euglandina P. Fischer & J.C.H. Crosse, 1870 (SPIRAXIDAE)
- Euglesa, syn of: Genus Pisidium L. Pfeiffer, 1821 (SPHAERIIDAE)
- Euglesia, syn of: Genus Pisidium L. Pfeiffer, 1821 (SPHAERIIDAE)
- euglypha, Cassianella euglypha Laube, 1865 † - (CASSIANELLIDAE) (FOSSIL)
- euglypha, Xeromagna euglypha É.A.A. Locard, 1899 - syn of: Xerosecta promissa C.A. Westerlund, 1893 - (HYGROMIIDAE)
- euglypha, Lucina euglypha E.A. Smith, 1915 - (LUCINIDAE)
- euglypha, Mathilda euglypha Laube, 1867 † - syn of: Tricarilda eucycla (Hébert & Eudes-Deslongchamps, 1860 †) - (MATHILDIDAE) (FOSSIL)
- euglyphea, Dictyotomaria euglyphea (Girty, 1909 †) - (GOSSELETINIDAE) (FOSSIL)
- euglyphea, Pleurotomaria euglyphea Girty, 1909 † - syn of: Dictyotomaria euglyphea (Girty, 1909 †) - (PLEUROTOMARIIDAE) (FOSSIL)
- euglyphoides, Discus euglyphoides (Sandberger, 1872) † - (DISCIDAE) (FOSSIL)
- Euglyphostoma, Genus Euglyphostoma W.P. Woodring, 1970 (CLATHURELLIDAE)
- euglyphus, Deshayesites euglyphus T.L. Casey, 1964 † - (DESHAYESITIDAE) (FOSSIL)
- euglyphus, Discus euglyphus (A.E. Reuss in A.E. Reuss & Meyer, 1849 †) - (DISCIDAE) (FOSSIL)
- euglyphus, Glycymeris euglyphus Woods † - (GLYCYMERIDIDAE) (FOSSIL)
- euglyphus, Brachidontes euglyphus Woods, 1922 † - (MYTILIDAE) (FOSSIL)
- euglyphus, Arctoptychites euglyphus (Mojsisovics, 1886 †) - (PTYCHITIDAE) (FOSSIL)
- euglyphus gibbosus, Deshayesites euglyphus gibbosus T.L. Casey, 1964 † - (DESHAYESITIDAE) (FOSSIL)
- euglypta, Acmaea euglypta P. Dautzenberg & H. Fischer, 1897 - syn of: Veleropilina euglypta (P. Dautzenberg & H. Fischer, 1897) - (ACMAEIDAE)
- euglypta, Anatoma euglypta (J.P.L. Pelseneer, 1903) - (ANATOMIDAE)
- euglypta, Glyptorhagada euglypta R. Tate, 1899 - (CAMAENIDAE)
- euglypta, Alcadia euglypta W.J. Clench & C.G. Aguayo, 1950 - (HELICINIDAE)
- euglypta, Mathilda euglypta T. Iredale, 1929 - syn of: Mathilda decorata (C. Hedley, 1903) - (MATHILDIDAE)
- euglypta, Nassa euglypta G.B. III Sowerby, 1914 - syn of: Nassarius euglyptus (G.B. III Sowerby, 1914) - (NASSARIIDAE)
- euglypta, Sigatica euglypta Gardner, 1947 † - (NATICIDAE) (FOSSIL)
- euglypta, Veleropilina euglypta (P. Dautzenberg & H. Fischer, 1897) - (NEOPILINIDAE)
- euglypta, Rokopella euglypta P. Dautzenberg & H. Fischer, 1897 - syn of: Veleropilina euglypta (P. Dautzenberg & H. Fischer, 1897) - (NEOPILINIDAE)
- euglypta, Pinna euglypta L.A. Reeve, 1858 - syn of: Pinna bicolor J.F. Gmelin, 1791 - (PINNIDAE)
- euglypta, Linisia euglypta (H.A. Pilsbry, 1896) - (POLYGYRIDAE)
- euglypta, Annularia euglypta C. de la Torre, 1941 - (POMATIIDAE)
- euglypta, Bermudezia euglypta (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- euglypta, Odostomia euglypta H.K. Jordan, 1920 - (PYRAMIDELLIDAE)
- euglypta, Scissurella euglypta J.P.L. Pelseneer, 1903 - syn of: Anatoma euglypta (J.P.L. Pelseneer, 1903) - (SCISSURELLIDAE)
- euglypta, Tellina euglypta A.A. Gould, 1861 - syn of: Herouvalia caelata (A. Adams, 1854) - (TELLINIDAE)
- euglypta, Elliptotellina euglypta A.A. Gould, 1861 - syn of: Herouvalia caelata (A. Adams, 1854) - (TELLINIDAE)
- euglypta, Leukoma euglypta (G.B. III Sowerby, 1914) - (VENERIDAE)
- euglypta, Paphia euglypta (R.A. Philippi, 1847) - (VENERIDAE)
- euglyptica, Terebra euglyptica E.W. Vredenburg, 1921 † - (TEREBRIDAE) (FOSSIL)
- euglyptum, Calliostoma euglyptum (A. Adams, 1855) - (CALLIOSTOMATIDAE)
- euglyptum, Cardium euglyptum G.B. III Sowerby, 1914 - syn of: Afrocardium richardi (Audoin, 1826) - (CARDIIDAE)
- euglyptus, Nassarius euglyptus (G.B. III Sowerby, 1914) - (NASSARIIDAE)
- euglyptus, Cyclostremiscus euglyptus C.G. Aguayo & P.J. Borro, 1946 - (TORNIDAE)
- euglyptus, Pitar euglyptus C.J. Maury, 1925 † - (VENERIDAE) (FOSSIL)
- euglyta, Annularia euglyta C. de la Torre, 1941 - syn of: Annularia euglypta C. de la Torre, 1941 - (POMATIIDAE)
- eugonia, Serratina eugonia H.H. Suter, 1913 - syn of: Tellina charlottae E.A. Smith, 1885 - (TELLINIDAE)
- eugonia, Tellina eugonia H.H. Suter, 1913 - syn of: Tellina charlottae E.A. Smith, 1885 - (TELLINIDAE)
- eugrammata, Conasprella eugrammata P. Bartsch & H.A. Rehder, 1943 - (CONIDAE)
- eugrammata, Daphnella eugrammata W.H. Dall, 1902 - (RAPHITOMIDAE)
- eugrammatum, Buccinum eugrammatum W.H. Dall, 1907 - (BUCCINIDAE)
- eugrammatus, Pecten eugrammatus W.H. Dall, 1898 † - syn of: Argopecten thetidis (Sowerby, 1850 †) - (PECTINIDAE) (FOSSIL)
- eugrapta, Achatina pfeifferi eugrapta H.A. Pilsbry - (ACHATINIDAE)
- Euguraleus, syn of: Genus Guraleus C. Hedley, 1918 (MANGELIIDAE)
- eugyne, Gyraulus eugyne C. Meier-Brook, 1983 - (PLANORBIDAE)
- Eugyrina, syn of: Genus Ranella J.B.P.A. Lamarck, 1816 (RANELLIDAE)
- eugyrum, Lytoceras eugyrum Mojsisovics, 1873 † - syn of: Mojsvarites eugyrus (Mojsisovics, 1873 †) - (LYTOCERATIDAE) (FOSSIL)
- eugyrum, Syringoceras eugyrum (Mojsisovics, 1873 †) - (SYRINGONAUTILIDAE) (FOSSIL)
- eugyrus, Nautilus eugyrus Mojsisovics, 1873 † - syn of: Syringoceras eugyrum (Mojsisovics, 1873 †) - (NAUTILIDAE) (FOSSIL)
- eugyrus, Mojsvarites eugyrus (Mojsisovics, 1873 †) - (USSURITIDAE) (FOSSIL)
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