- erzuruma, Bithynia erzuruma Schütt, 1991 † - (BITHYNIIDAE) (FOSSIL)
- esakii, Aegista esakii J.T. Kuroda, 1973 - (BRADYBAENIDAE)
- esakii, Platydoris esakii (K. Baba, 1936) - (DISCODORIDIDAE)
- esamianus, Tomigerus esamianus A. Salgado & A.C. dos Santos Coelho, 1990 - (ODONTOSTOMIDAE)
- esau, Semotrachia esau T. Iredale, 1937 - (CAMAENIDAE)
- esaulovae, Hemiliroceras esaulovae I.S. Barskov & Shilovsky, 2014 † - (LIROCERATIDAE) (FOSSIL)
- esaulovae, Biarmiceras esaulovae Leonova & al., 2005 † - (MONGOLOCERATIDAE) (FOSSIL)
- esaulovae, Juvenispira esaulovae Mazaev, 2015 † - (PHYMATOPLEURIDAE) (FOSSIL)
- Esbelta, syn of: Genus Tritonoharpa W.H. Dall, 1908 (CANCELLARIIDAE)
- esbelta, Ptychomya esbelta L. Carmona, Lazo & Soto, 2017 † - (PTYCHOMYIDAE) (FOSSIL)
- esbeltus, Napaeinus esbeltus C.M. Ibáñez & M.R. Alonso, 1995 - (ENIDAE)
- escalatus, Etheripecten escalatus C.O. Waterhouse, 1982 † - (HETEROPECTINIDAE) (FOSSIL)
- escalerense, Opisthosiphon apertum escalerense C. de la Torre & J. Henderson, 1920 - (POMATIIDAE)
- escalerense, Opisthosiphon paredonense escalerense C. de la Torre & P. Bartsch, 1941 - (POMATIIDAE)
- Escalima, Genus Escalima T. Iredale, 1929 (LIMIDAE)
- escambia, Fusconaia escambia W.J. Clench & H. Turner, 1956 - (UNIONIDAE)
- escandei, Rioceras escandei (Thoral, 1935 †) - (RIOCERATIDAE) (FOSSIL)
- escarceoana, Teredo escarceoana P. Bartsch, 1927 - (TEREDINIDAE)
- escarenensis, Cernuella escarenensis E. Caziot - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- escargueli, Billingsites escargueli Monnet & Bucher, 2005 † - (BEYRICHITIDAE) (FOSSIL)
- Escarguelites, Genus Escarguelites Brühwiler & al., 2012 † (ARCTOCERATIDAE) (FOSSIL)
- escatllari, Doto escatllari J.A. Ortea, L. Moro & J. Espinosa, 1998 - (DOTIDAE)
- escayachensis, Pelagiella escayachensis Kobayashi, 1937 † - (PELAGIELLIDAE) (FOSSIL)
- escensa, Cinnalepta escensa T. Iredale, 1929 - syn of: Phenacolepas cinnamomea (Gould, 1846) - (PHENACOLEPADIDAE)
- eschara, Curveulima eschara P. Bouchet & A. Warén, 1986 - (EULIMIDAE)
- Escharella, syn of: Genus Macromphalus S.V. Wood, 1842 (VANIKORIDAE)
- Escharendoceras, Genus Escharendoceras Flower 1956 (PROTEROCAMEROCERATIDAE) (FOSSIL)
- eschariferus, Naesiotus eschariferus (G.B. I Sowerby, 1833) - (BULIMULIDAE)
- eschariferus bizonalis, Naesiotus eschariferus bizonalis C.M.F. Ancey, 1887 - (BULIMULIDAE)
- eschariferus pileatus, Naesiotus eschariferus pileatus W.H. Dall, 1896 - (BULIMULIDAE)
- eschariferus subconoidalis, Naesiotus eschariferus subconoidalis C.M.F. Ancey, 1887 - (BULIMULIDAE)
- Eschatocypraea, Genus Eschatocypraea Schilder, 1966 † (EOCYPRAEIDAE) (FOSSIL)
- escheri, Veveysiceras escheri (Goster, 1860 †) - (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- escheri, Ancyloceras escheri Goster, 1860 † - syn of: Veveysiceras escheri (Goster, 1860 †) - (ANCYLOCERATIDAE) (FOSSIL)
- escheri, Proarcestes escheri (Mojsisovics, 1875 †) - (ARCESTIDAE) (FOSSIL)
- escheri, Augustaceras escheri Bucher, 1988 † - (BALATONITIDAE) (FOSSIL)
- escheri, Semibittium cancellatum escheri (G.P. Deshayes, 1864 †) - (CERITHIIDAE) (FOSSIL)
- escheri, Acamptogenotia escheri (C. Mayer, 1861 †) - (CLATHURELLIDAE) (FOSSIL)
- escheri, Omphaloptycha escheri (R. Hoernes, 1856 †) - (COELOSTYLINIDAE) (FOSSIL)
- escheri, Triptychia escheri (Sandberger, 1875) † - (FILHOLIIDAE) (FOSSIL)
- escheri, Icanotia escheri (Pictet & Campiche, 1865 †) - (ICANOTIIDAE) (FOSSIL)
- escheri, Brotia escheri A. Brongniart, 1822 † - syn of: Tinnyea lauraea (Matheron, 1842 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri, Pleurotomaria escheri G.A. Goldfuss, 1844 † - (PLEUROTOMARIIDAE) (FOSSIL)
- escheri, Semiterebellum escheri Mayer-Eymar, 1870 † - (ROSTELLARIIDAE) (FOSSIL)
- escheri aquitanica, Brotia escheri aquitanica Noulet, 1846 † - syn of: Tinnyea aquitanica (Noulet, 1846 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri auingeri, Brotia escheri auingeri Handmann, 1882 † - syn of: Tinnyea lauraea (Matheron, 1842 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri ecostata, Brotia escheri ecostata C.L.F. von Sandberger, 1875 † - syn of: Tinnyea ecostata (C.L.F. von Sandberger, 1875 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri graeca de, Brotia escheri graeca de Stefani, 1891 † - syn of: Tinnyea graeca (C. De Stefani, 1891 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri grossecostata, Brotia escheri grossecostata E. Klein, 1852 † - syn of: Tinnyea grossecostata (E. Klein, 1852 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri inornata, Brotia escheri inornata W.A. Wenz, 1932 † - syn of: Tinnyea inornata W.A. Wenz, 1932 † - (PACHYCHILIDAE) (FOSSIL)
- escheri obsoleta, Brotia escheri obsoleta Lomnicki, 1886 † - syn of: Tinnyea obsoleta (Lomnicki, 1886 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri pilari, Brotia escheri pilari M. von Neumayr, 1880 † - syn of: Tinnyea pilari (M. von Neumayr, 1880 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri subotici, Brotia escheri subotici Š. Brusina, 1902 † - syn of: Tinnyea subotici (Š. Brusina, 1902 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri turrita, Melanatria escheri turrita E. Klein, 1846 † - syn of: Tinnyea lauraea (Matheron, 1842 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri verbasensis, Brotia escheri verbasensis M. von Neumayr, 1883 † - syn of: Tinnyea verbasensis (M. von Neumayr, 1883 †) - (PACHYCHILIDAE) (FOSSIL)
- escheri wetzleri, Brotia escheri wetzleri R.W. Dunker, 1848 † - syn of: Tinnyea wetzleri (R.W. Dunker, 1848 †) - (PACHYCHILIDAE) (FOSSIL)
- escheriana, Assyriella escheriana (J.R. Bourguignat, 1864) - (HELICIDAE)
- Eschericeratites, Genus Eschericeratites Guex & al., 2005 † (TIROLITIDAE) (FOSSIL)
- escherichi, Mesolimax escherichi H.R. Simroth, 1899 - (AGRIOLIMACIDAE)
- escherichi, Helix escherichi O. Böttger, 1898 - (HELICIDAE)
- escherilobatum, Furloceras escherilobatum (Géczy 1966 †) - (PHYMATOCERATIDAE) (FOSSIL)
- eschewegi, Conus eschewegi Pereira de Costa, 1866 † - (CONIDAE) (FOSSIL)
- eschii, Kamerunoceras eschii (Solger, 1904 †) - (ACANTHOCERATIDAE) (FOSSIL)
- eschrichti, Epitonium eschrichti Hölböll in H.P.C. Møller, 1842 - syn of: Acirsa borealis (C. Lyell, 1841) - (EPITONIIDAE)
- eschrichti, Turritella eschrichti Hölböll in H.P.C. Møller, 1842 - syn of: Acirsa borealis (C. Lyell, 1841) - (TURRITELLIDAE)
- eschrichtii, Neostylidium eschrichtii (A.T. von Middendorff, 1849) - (CERITHIIDAE)
- eschrichtii, Stylidium eschrichtii A.T. von Middendorff, 1849 - syn of: Neostylidium eschrichtii (A.T. von Middendorff, 1849) - (CERITHIIDAE)
- eschrichtii, Turritella eschrichtii A.T. von Middendorff, 1849 - syn of: Neostylidium eschrichtii (A.T. von Middendorff, 1849) - (TURRITELLIDAE)
- eschrichtii icelum, Neostylidium eschrichtii icelum (P. Bartsch, 1907) - (CERITHIIDAE)
- eschrichtii montereyense, Neostylidium eschrichtii montereyense (P. Bartsch, 1907) - (CERITHIIDAE)
- eschscholtzi, Turbonilla eschscholtzi W.H. Dall & P. Bartsch, 1907 - (PYRAMIDELLIDAE)
- escobedae, Mexipyrgus escobedae D.W. Taylor, 1966 - syn of: Mexipyrgus carranzae D.W. Taylor, 1966 - (COCHLIOPIDAE)
- escoffierae, Saccoia escoffierae (J.R. Tournouër, 1874 †) - (HYDROBIIDAE) (FOSSIL)
- Escoffieria, syn of: Genus Potamides J.R. Bourguignat, 1810 (POTAMIDIDAE)
- escolai, Xerocrassa escolai M. Bech, 1993 - (HYGROMIIDAE)
- escondida, Gemma escondida I. Richling, 2004 - (HELICINIDAE)
- escondida, Iphitus escondida G.T. Poppe & S.P. Tagaro, 2016 - (NYSTIELLIDAE)
- escondida, Turbonilla escondida G.T. Poppe, S.P. Tagaro & P. Stahlschmidt, 2015 - (PYRAMIDELLIDAE)
- escondida, Impages escondida Y. Terryn, 2006 - (TEREBRIDAE)
- escondidai, Calamiconus escondidai (G.T. Poppe & S.P. Tagaro, 2005) - (CONIDAE)
- escondidensis, Triphora escondidensis F. Baker, 1926 - (TRIPHORIDAE)
- escondidum, Calliostoma escondidum G.T. Poppe, S.P. Tagaro & C. Vilvens, 2014 - (CALLIOSTOMATIDAE)
- escondidus, Trimusculus escondidus G.T. Poppe & K. Groh, 2009 - (TRIMUSCULIDAE)
- escondidus, Jujubinus escondidus G.T. Poppe, S.P. Tagaro & H. Dekker, 2006 - (TROCHIDAE)
- escondidus, Clanculus escondidus G.T. Poppe, S.P. Tagaro & C. Vilvens, 2009 - (TROCHIDAE)
- escondita, Dostia escondita Cushing Woods & Saul, 1986 † - (NERITIDAE) (FOSSIL)
- escosurae, Ctenodonta escosurae Sharpe, 1853 † - (CTENODONTIDAE) (FOSSIL)
- escoti, Gundolficeras escoti (Frech, 1887 †) - (TORNOCERATIDAE) (FOSSIL)
- escoti carnicum, Tornoceras escoti carnicum Gortani, 1907 † - syn of: Gundolficeras escoti (Frech, 1887 †) - (TORNOCERATIDAE) (FOSSIL)
- escragnollensis, Conohibolithes escragnollensis (Delattre, 1952 †) - (MESOHIBOLITHIDAE) (FOSSIL)
- escudiei, Abida escudiei P. Geniez & A. Bertrand, 2001 - syn of: Abida partioti A.de Saint-Simon, 1848 - (CHONDRINIDAE)
- esculenta, Sepia esculenta W.E. Hoyle, 1885 - (SEPIIDAE)
- esculenta, Micreschara esculenta (C.R. Laws, 1944 †) - (VANIKORIDAE) (FOSSIL)
- esculptum, Epitonium esculptum (G.B. Sowerby, 1844) - (EPITONIIDAE)
- esculpturata, Neotrapezium esculpturata H.B. Preston, 1915 - syn of: Neotrapezium sublaevigatum (J.B.P.A. Lamarck, 1819) - (TRAPEZIDAE)
- esculpturata, Petricola esculpturata H.B. Preston, 1915 - syn of: Neotrapezium sublaevigatum (J.B.P.A. Lamarck, 1819) - (VENERIDAE)
- Escutiella, Subgenus Parmacella (Escutiella) Martínez-Ortí & Borredà, 2012 (PARMACELLIDAE)
- esdailei, Tahuia esdailei (J. Marwick, 1926 †) - (CONOIDEA (UNASSIGNED)) (FOSSIL)
- esdailei, Polinella esdailei (J. Marwick, 1924 †) - (NATICIDAE) (FOSSIL)
- Eselaevitrigonia, Genus Eselaevitrigonia Kobayashi & Mori, 1954 † (TRIGONIIDAE) (FOSSIL)
- eseri, Harpoceras eseri Oppel, 1856 † - (HILDOCERATIDAE) (FOSSIL)
- eseri, Pecten eseri Oppel, 1856 † - (PECTINIDAE) (FOSSIL)
- eseri, Esericeras eseri Oppel, 1856 † - (PHYMATOCERATIDAE) (FOSSIL)
- Esericeras, Genus Esericeras Oppel, 1856 † (PHYMATOCERATIDAE) (FOSSIL)
- esetra, Microcystis esetra K.C. Emberton & T.A. Pearce, 2000 - (EUCONULIDAE)
- esetrae, Boucardicus esetrae K.C. Emberton & T.A. Pearce, 1999 - (CYCLOPHORIDAE)
- eshelmani, Chesacardium laqueatum eshelmani Ward, 1992 † - (CARDIIDAE) (FOSSIL)
- eshnaurae, Vitrinella eshnaurae P. Bartsch, 1907 - (TORNIDAE)
- esichia, Oxyloma esichia G. Servain, 1881 - syn of: Oxyloma elegans (A. Risso, 1826) - (SUCCINEIDAE)
- esilda, Leucosyrinx esilda (W.H. Dall, 1908) - (PSEUDOMELATOMIDAE)
- esilda, Odostomia esilda W.H. Dall & P. Bartsch, 1909 - (PYRAMIDELLIDAE)
- esilda, Pleurotomella esilda W.H. Dall, 1908 - syn of: Leucosyrinx esilda (W.H. Dall, 1908) - (RAPHITOMIDAE)
- esinensis, Acteonina esinensis Stoppani, 1858 † - syn of: Pseudoscalites armatus (Stoppani, 1857 †) - (ACTEONINIDAE) (FOSSIL)
- esinensis, Actaeonina esinensis Stoppani, 1858 † - syn of: Pseudoscalites armatus (Stoppani, 1857 †) - (ACTEONINIDAE) (FOSSIL)
- esinensis, Delphinulopsis esinensis E.A.L. Kittl, 1894 † - syn of: Platychilina cainalloi (Stoppani, 1857 †) - (DELPHINULOPSIDAE) (FOSSIL)
- esinensis, Worthenia esinensis E.A.L. Kittl, 1899 † - (LOPHOSPIRIDAE) (FOSSIL)
- esinensis, Planospirina esinensis (Stoppani, 1858 †) - (NATICOPSIDAE) (FOSSIL)
- esini, Uralyroceras esini (Nikolaeva, 1994 †) - (NEOGLYPHIOCERATIDAE) (FOSSIL)
- esiodina, Oliva esiodina P.L. Duclos, 1835 - syn of: Oliva jaspidea esiodina P.L. Duclos, 1835 - (OLIVIDAE)
- esiodina, Oliva jaspidea esiodina P.L. Duclos, 1835 - (OLIVIDAE)
- eskatum, Strioterebrum eskatum J. Gardner, 1937 † - (TEREBRIDAE) (FOSSIL)
- eskdalensis, Aviculopecten eskdalensis Hind, 1904 † - (AVICULOPECTINIDAE) (FOSSIL)
- Eskimoceras, Genus Eskimoceras Troedsson, 1936 † (ESKIMOCERATIDAE) (FOSSIL)
- ESKIMOCERATIDAE Shimizu & Obata, 1936 † - Family (CEPHALOPODA-ORTHOCERATOIDEA [Subclass]-ORTHOCERIDA [Order]) (FOSSIL)
- esmeralda, Anadara esmeralda (H.A. Pilsbry & A.A. Olsson, 1941) - (ARCIDAE)
- esmeralda, Cancellaria esmeralda A.A. Olsson, 1964 † - (CANCELLARIIDAE) (FOSSIL)
- esmeralda, Hexacorbula esmeralda (A.A. Olsson, 1961) - (CORBULIDAE)
- esmeralda, Carycorbula esmeralda A.A. Olsson, 1961 - syn of: Hexacorbula esmeralda (A.A. Olsson, 1961) - (CORBULIDAE)
- esmeralda, Pleurotomella esmeralda A.A. Olsson, 1964 † - (RAPHITOMIDAE) (FOSSIL)
- esmeralda, Tellina esmeralda (A.A. Olsson, 1961) - (TELLINIDAE)
- Esmeralda, Genus Esmeralda H.A. Pilsbry & A.A. Olsson, 1952 (TORNIDAE)
- esmeralda, Teinostoma esmeralda H.A. Pilsbry & A.A. Olsson, 1945 - (TORNIDAE)
- esmeraldensis, Cotonopsis esmeraldensis A.A. Olsson, 1964 † - (COLUMBELLIDAE) (FOSSIL)
- esmeraldensis, Brachidontes esmeraldensis A.A. Olsson, 1961 - syn of: Brachidontes playasensis (H.A. Pilsbry & A.A. Olsson, 1935) - (MYTILIDAE)
- esmeraldensis, Gordanops esmeraldensis A.A. Olsson, 1964 † - (NASSARIIDAE) (FOSSIL)
- esmeraldensis, Pholadidea esmeraldensis (A.A. Olsson, 1961) - (PHOLADIDAE)
- esmeraldina, Parkula esmeraldina Skovsted, 2006 † - (HYOLITHIDA (UNASSIGNED)) (FOSSIL)
- Esmerarca, syn of: Genus Anadara J.E. Gray, 1847 (ARCIDAE)
- Esmeria, syn of: Genus Altrix K.V.W. Palmer, 1942 (FISSURELLIDAE)
- Esmia, syn of: Genus Aplysia C. Linnaeus, 1767 (APLYSIIDAE)
- Esochara, Subgenus Pycnoptychia (Esochara) H.A. Pilsbry & E.G. Vanatta, 1898 (UROCOPTIDAE)
- esontropia, Cribrarula esontropia (P.L. Duclos, 1833) - (CYPRAEIDAE)
- esontropia, Cribrarula esontropia J.W. Taylor, 1916 - syn of: Cribrarula gaskoini (L.A. Reeve, 1846) - (CYPRAEIDAE)
- esontropia cribellum, Cribrarula esontropia cribellum (J.S. Gaskoin, 1849) - (CYPRAEIDAE)
- esontropia francescoi, Cribrarula esontropia francescoi F.Jr. Lorenz, 2002 - (CYPRAEIDAE)
- Esopoceras, Genus Esopoceras Stanley & Teichert, 1976 † (ORTHOCERIDA (UNASSIGNED)) (FOSSIL)
- espagnoli, Polycera espagnoli Tejedo, 1994 - syn of: Polycera elegans L.S.R. Bergh, 1894 - (POLYCERIDAE)
- espaillaci, Hippurites espaillaci d'Orbigny, 1847 † - syn of: Hippuritella lapeirousei (G.A. Goldfuss, 1840 †) - (HIPPURITIDAE) (FOSSIL)
- espaillaciana, Hippurites espaillaciana d'Orbigny, 1842 † - syn of: Hippuritella lapeirousei (G.A. Goldfuss, 1840 †) - (HIPPURITIDAE) (FOSSIL)
- espanoli, Bythinella espanoli M. Bech, 1979 - syn of: Bythinella batalleri A. Bofill, 1925 - (BYTHINELLIDAE)
- espanoli, Chondrina espanoli C. Altimira, 1961 - syn of: Chondrina farinesii C. des Moulins, 1835 - (CHONDRINIDAE)
- esparanza, Asperdaphne esparanza W.L. May, 1911 - syn of: Asperdaphne esperanza (W.L. May, 1911) - (RAPHITOMIDAE)
- espartariensis, Amandana caroli espartariensis (F. Schröder, 1984) - (HYGROMIIDAE)
- esperancensis, Turriplicifer esperancensis (M.P. Marrow, 2013) - (COSTELLARIIDAE)
- esperancensis, Mitra esperancensis M.P. Marrow, 2013 - syn of: Turriplicifer esperancensis (M.P. Marrow, 2013) - (MITRIDAE)
- esperantia, Bothriembryon esperantia T. Iredale, 1939 - (BOTHRIEMBRYONTIDAE)
- esperanza, Mitromica esperanza (J.H. Leal & R.C. Moore, 1993) - (COSTELLARIIDAE)
- esperanza, Thala esperanza J.H. Leal & R.C. Moore, 1993 - syn of: Mitromica esperanza (J.H. Leal & R.C. Moore, 1993) - (COSTELLARIIDAE)
- esperanza, Asperdaphne esperanza (W.L. May, 1911) - (RAPHITOMIDAE)
- esperanza, Hemipleurotoma esperanza W.L. May, 1911 - syn of: Asperdaphne esperanza (W.L. May, 1911) - (TURRIDAE)
- esperanzae, Stomatella esperanzae H.A. Rehder, 1980 - (TROCHIDAE)
- esperanzensis, Planorbis esperanzensis G.W. Tryon, 1866 - syn of: Drepanotrema anatinum (A.V.M.D. D'Orbigny, 1835) - (PLANORBIDAE)
- esperi, Esperiana esperi (A.E.J. Férussac, 1823) - (MELANOPSIDAE)
- esperi, Fagotia esperi A.E.J. Férussac, 1823 - syn of: Esperiana esperi (A.E.J. Férussac, 1823) - (MELANOPSIDAE)
- esperi, Hemisinus esperi A.E.J. Férussac, 1823 - syn of: Esperiana esperi (A.E.J. Férussac, 1823) - (THIARIDAE)
- esperi desori, Esperiana esperi desori (C. De Stefani, 1877 †) - (MELANOPSIDAE) (FOSSIL)
- Esperiana, Genus Esperiana J.R. Bourguignat, 1877 (MELANOPSIDAE)
- esperioides, Melanopsis esperioides Stefanescu, 1896 † - (MELANOPSIDAE) (FOSSIL)
- espeyense, Rayonnoceras espeyense Turner † - (CARBACTINOCERATIDAE) (FOSSIL)
- espibosensis, Praerosaria espibosensis L. Dolin & P. Lozouet, 2004 † - (CYPRAEIDAE) (FOSSIL)
- espibosensis, Pleurotomella espibosensis P. Lozouet, 2015 † - (RAPHITOMIDAE) (FOSSIL)
- espichelensis, Aguileria espichelensis Fursich & Werner 1988 † - (BAKEVELLIIDAE) (FOSSIL)
- espigaoensis, Craticula espigaoensis M. Seddon, 1990 - (LAURIIDAE)
- espinal, Lima espinal Stoyanow, 1949 † - (LIMIDAE) (FOSSIL)
- espinasa, Retispira espinasa B.S. Kues, 2004 † - (KNIGHTITIDAE) (FOSSIL)
- espinazitensis, Papilliceras espinazitensis Tornquist, 1898 † - (SONNINIIDAE) (FOSSIL)
- espingueirensis, Africonus espingueirensis (T. Cossignani & R. Fiadeiro, 2017) - (CONIDAE)
- espinosa, Coluzea espinosa H.J. Finlay, 1930 - syn of: Coluzea spiralis (A. Adams, 1856) - (TURBINELLIDAE)
- espinosae, Lepetella espinosae L. Dantart & A.A. Luque, 1994 - (LEPETELLIDAE)
- espinosai, Felimare espinosai (J.A. Ortea & Á. Valdés, 1996) - (CHROMODORIDIDAE)
- espinosai, Doriopsilla espinosai Á. Valdés & J.A. Ortea, 1998 - (DENDRODORIDIDAE)
- espinosai, Ancula espinosai J.A. Ortea, 2001 - (GONIODORIDIDAE)
- espinosai, Eratoidea espinosai J. Espinosa & J.A. Ortea, 2014 - (MARGINELLIDAE)
- espinosai, Mitra espinosai H. Sarasúa, 1978 - (MITRIDAE)
- espinosai, Metaxia espinosai E. Rolán & R. Fernández-Garcés, 1992 - (TRIPHORIDAE)
- espinosum, Eomarshallites espinosum F.A. Medina & Rinaldi, 1986 † - (KOSSMATICERATIDAE) (FOSSIL)
- espinosus, Ambercyclus espinosus (Ferrari, 2009 †) - (EUCYCLIDAE) (FOSSIL)
- espinosus, Murexsul espinosus (F.W. Hutton, 1885) - (MURICIDAE)
- espinosus, Murex espinosus F.W. Hutton, 1885 - syn of: Murexsul espinosus (F.W. Hutton, 1885) - (MURICIDAE)
- espinosus, Murex espinosus J.H. Macpherson, 1959 - syn of: Haustellum tweedianum (J.H. Macpherson, 1962) - (MURICIDAE)
- espinosus mariae, Murexsul espinosus mariae H.J. Finlay, 1930 - syn of: Murexsul mariae (H.J. Finlay, 1930) - (MURICIDAE)
- espirita, Opalia espirita A.M. Strong, 1930 - syn of: Opalia crystallina (P.P. Carpenter, 1864) - (EPITONIIDAE)
- espirita, Opalia espirita F.C. Baker, G.D. Hanna & A.M. Strong, 1930 - syn of: Opalia crystallina (P.P. Carpenter, 1864) - (EPITONIIDAE)
- espiritosantense, Anatoma espiritosantense A. Pimenta & D.L. Geiger, 2015 - (ANATOMIDAE)
- espiritum, Epitonium espiritum F.C. Baker, G.D. Hanna & A.M. Strong, 1930 - syn of: Opalia crystallina (P.P. Carpenter, 1864) - (EPITONIIDAE)
- espiritusanta, Pseudunela espiritusanta T.P. Neusser & M. Schrödl, 2009 - (PSEUDUNELIDAE)
- espiritusantoana, Fluviopupa espiritusantoana M. Haase, Fontaine & O. Gargominy, 2010 - (HYDROBIIDAE)
- espisbosensis, Pleurotomella espisbosensis P. Lozouet, 2015 - (RAPHITOMIDAE)
- espyra, Splendrillia espyra (W.P. Woodring, 1928) - (DRILLIIDAE)
- esquimalti, Astarte esquimalti (W. Baird, 1863) - (ASTARTIDAE)
- esquimalti, Crassatella esquimalti W. Baird, 1863 - syn of: Astarte esquimalti (W. Baird, 1863) - (CRASSATELLIDAE)
- essaouirae, Gassendiceras essaouirae J.J. Bert & Bersac, 2014 † - (HEMIHOPLITIDAE) (FOSSIL)
- essenensis, Mariella essenensis (H.B. Geinitz, 1849 †) - (TURRILITIDAE) (FOSSIL)
- esserana, Pyrenaearia carascalensis esserana (J.R. Bourguignat, 1887) - (HYGROMIIDAE)
- esserana, Testacella esserana P. Fagot, 1892 - syn of: Testacella haliotidea J.P.R. Draparnaud, 1801 - (TESTACELLIDAE)
- esseranum, Cochlostoma martorelli esseranum (P. Fagot, 1887) - (COCHLOSTOMATIDAE)
- essiengionensis, Notopala essiengionensis G.R. von Frauenfeld, 1862 - syn of: Notopala essingtonensis (G.R. von Frauenfeld, 1862) - (VIVIPARIDAE)
- essingtonensis, Cardita essingtonensis G.P. Deshayes, 1854 - syn of: Cardita pica L.A. Reeve, 1843 - (CARDITIDAE)
- essingtonensis, Mitrella essingtonensis (L.A. Reeve, 1859) - (COLUMBELLIDAE)
- essingtonensis, Pyrene essingtonensis L.A. Reeve, 1859 - syn of: Mitrella essingtonensis (L.A. Reeve, 1859) - (COLUMBELLIDAE)
- essingtonensis, Columbella essingtonensis L.A. Reeve, 1859 - syn of: Mitrella essingtonensis (L.A. Reeve, 1859) - (COLUMBELLIDAE)
- essingtonensis, Gyraulus essingtonensis (E.A. Smith, 1882) - (PLANORBIDAE)
- essingtonensis, Planorbis essingtonensis E.A. Smith, 1882 - syn of: Gyraulus essingtonensis (E.A. Smith, 1882) - (PLANORBIDAE)
- essingtonensis, Plicatula plicata essingtonensis G.B. Sowerby, 1873 - (PLICATULIDAE)
- essingtonensis, Inquisitor essingtonensis E.A. Smith, 1888 - syn of: Inquisitor mastersi (J.W. Brazier, 1876) - (PSEUDOMELATOMIDAE)
- essingtonensis, Tellina essingtonensis G.B. II Sowerby, 1866 - syn of: Sylvanus lilium (S.C.T. Hanley, 1844) - (TELLINIDAE)
- essingtonensis, Notopala essingtonensis (G.R. von Frauenfeld, 1862) - (VIVIPARIDAE)
- essingtonensis elusa, Plicatula essingtonensis elusa T. Iredale, 1931 - syn of: Plicatula plicata (C. Linnaeus, 1767) - (PLICATULIDAE)
- essoensis, Coelatura essoensis (M.A. Chaper, 1885) - (UNIONIDAE)
- estabrookianus, Unio estabrookianus I. Lea, 1845 - syn of: Fusconaia barnesiana (I. Lea, 1829) - (UNIONIDAE)
- estalliana, Partula rosea estalliana A. Garrett, 1882 - (PARTULIDAE)
- estanciensis, Pantojaloria estanciensis Pantoja-Alor & al., 2004 † - (CAPRINIDAE) (FOSSIL)
- 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 D. De Jong & H.E. Coomans, 1988 - syn of: Olivella ankeli J.M. Díaz & K. Götting, 1990 - (OLIVELLIDAE)
- esther, Olivella esther P.L. Duclos, 1835 - syn of: Olivella ankeli J.M. Díaz & K. Götting, 1990 - (OLIVELLIDAE)
- estherae, Napaeus estherae Artiles, 2013 - (ENIDAE)
- 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 [Subclass]-TARPHYCERIDA [Order]) (FOSSIL)
- Estopupina, syn of: Subgenus Hedleya (Necopupina) 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)
- esutoruensis, Ostrea esutoruensis L. Krishtofovich, 1957 † - syn of: Ostrea agnevoensis L. Krishtofovich, 1957 ex Lautenschläger MS † - (OSTREIDAE) (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)
- etalonnensis, Cyclocardia etalonnensis Slodkewitsch, 1936 † - syn of: Cyclocardia etolonnensis (Slodkewitsch, 1936 †) - (CARDITIDAE) (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)
- etereticum, Keenocardium etereticum Volobueva, 1981 † - syn of: Clinocardium asagaiense (J. Makiyama, 1934 †) - (CARDIIDAE) (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, Pseudaviculopecten etheridgei (deKoninck 1876) † - (PTERINOPECTINIDAE) (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 [Subclass]-UNIONIDA [Order]-ETHERIOIDEA [Superfamily])
- 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, Eucrassatella etolonensis V.N. Sinelnikova, 1990 † - (CRASSATELLIDAE) (FOSSIL)
- etolonensis, Corbicula etolonensis V.N. Sinelnikova, 1990 † - (CYRENIDAE) (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)
- etolonensis, Penitella etolonensis V.N. Sinelnikova, 1990 † - (PHOLADIDAE) (FOSSIL)
- etolonnensis, Cyclocardia etolonnensis (Slodkewitsch, 1936 †) - (CARDITIDAE) (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 lorcana etrusca C.A. Westerlund, 1886 - (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)
- eua, Gregoia eua Fehse, 2017 - (TRIVIIDAE)
- Euacanthinula, syn of: Genus Acanthinula H.H. Beck, 1847 (VALLONIIDAE)
- Euachatina, syn of: Genus Achatina J.B.P.A. Lamarck, 1799 (ACHATINIDAE)
- Euactaeonina, Genus Euactaeonina Wenz, 1947 † (CEPHALASPIDA (UNASSIGNED)) (FOSSIL)
- euactis, Reineckeia euactis Steinmann, 1881 † - (REINECKEIIDAE) (FOSSIL)
- Euadnita, syn of: Subgenus Diplommatina (Sinica) O.F. von Möllendorff, 1885 (DIPLOMMATINIDAE)
- 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 (GASTROCOPTIDAE)
- 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 [Subclass]-OPISTHOBRANCHIA [Infraclass]-NUDIBRANCHIA [Order]-FIONOIDEA [Superfamily])
- 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, syn of: Genus Calliostoma W.J. Swainson, 1840 (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 [Subclass]-PECTINIDA [Order]-EUCHONDRIOIDEA [Superfamily]) (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 [Subclass]-EUHETERODONTA [Infraclass]-ANOMALODESMATA [Order]-VERTICORDIOIDEA [Superfamily])
- 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, Monoplex euclia B.C. Cotton, 1945 - syn of: Monoplex exaratus (L.A. Reeve, 1844) - (RANELLIDAE)
- euclia, Charonia euclia T. Iredale, 1929 - syn of: Charonia lampas (C. Linnaeus, 1758) - (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 [Subclass]-TROCHOIDEA [Superfamily]) (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 [Subclass]-PULMONATA [Infraclass]-STYLOMMATOPHORA [Order]-GASTRODONTOIDEA [Superfamily])
- 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 (Kuroda, 1958) - (CAMAENIDAE)
- eucosmia, Satsuma eucosmia (H.A. Pilsbry, 1895) - (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 [Subclass]-SEGUENZIOIDEA [Superfamily]) (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 [Subclass]-SEGUENZIOIDEA [Superfamily]) (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)
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