- senaaricus, Pupoides senaaricus J.R. Bourguignat, 1883 - syn of: Pupoides coenopictus (F.W. Hutton, 1834) - (PUPILLIDAE)
- senaariensis, Limicolaria senaariensis R.J. Shuttleworth - syn of: Limicolaria sennarensis R.J. Shuttleworth - (ACHATINIDAE)
- senaariensis, Gabbiella senaariensis (H.C. Küster, 1852) - (BITHYNIIDAE)
- senaariensis, Pupoides senaariensis L. Pfeiffer, 1855 - syn of: Pupoides coenopictus (F.W. Hutton, 1834) - (PUPILLIDAE)
- senachuensis, Tristramia senachuensis (A.J. Wagner, 1905) - (HELICINIDAE)
- senae, Engina senae H.A. Pilsbry & H.N. Lowe, 1932 - (BUCCINIDAE)
- senafirensis, Viriola senafirensis (R. Sturany, 1903) - (TRIPHORIDAE)
- senaria, Ptychospirina senaria J. Perner, 1907 † - (PLATYCERATIDAE) (FOSSIL)
- senaria, Compsodrillia senaria W.P. Woodring, 1928 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- Senaridenta, Genus Senaridenta A.A. Schileyko, 1984 (ENIDAE)
- Senaridenta, syn of: Genus Multidentula W.A. Lindholm, 1925 (ENIDAE)
- senarium, Ventrilia senarium (R.E. Petit & R.C. Hoerle, 1976 †) - (CANCELLARIIDAE) (FOSSIL)
- senator, Glessula senator S.C.T. Hanley - (SUBULINIDAE)
- senatoria, Melanopsis senatoria Handmann, 1887 † - (MELANOPSIDAE) (FOSSIL)
- senatoria, Ostrea senatoria J.F. Gmelin, 1791 - syn of: Mimachlamys sanguinea (C. Linnaeus, 1758) - (OSTREIDAE)
- senatoria, Chlamys senatoria J.F. Gmelin, 1791 - syn of: Mimachlamys sanguinea (C. Linnaeus, 1758) - (PECTINIDAE)
- senatoria longata, Melanopsis senatoria longata Handmann, 1887 † - (MELANOPSIDAE) (FOSSIL)
- senchenbergiana, Euhadra senchenbergiana W. Kobelt, 1875 - syn of: Euhadra senckenbergiana (W. Kobelt, 1875) - (BRADYBAENIDAE)
- senckenbergi, Palaeodawsonocerina senckenbergi (Teichert, 1930 †) - (DAWSONOCERATIDAE) (FOSSIL)
- senckenbergi, Spyroceras senckenbergi Teichert, 1930 † - (SPYROCERATIDAE) (FOSSIL)
- Senckenbergia, Genus Senckenbergia T.C. Yen, 1939 (SEMISULCOSPIRIDAE)
- senckenbergiana, Euhadra senckenbergiana (W. Kobelt, 1875) - (BRADYBAENIDAE)
- senckenbergiana, Ferrissia senckenbergiana O. Böttger, 1877 † - syn of: Ferrissia deperdita (A.G. Desmarest, 1814 †) - (PLANORBIDAE) (FOSSIL)
- senckenbergiana aomoriensis, Euhadra senckenbergiana aomoriensis J.T. Gulick & H.A. Pilsbry, 1900 - (BRADYBAENIDAE)
- senckenbergiana ibukicola, Euhadra senckenbergiana ibukicola H.A. Pilsbry, 1928 - (BRADYBAENIDAE)
- senckenbergiana minoensis, Euhadra senckenbergiana minoensis H.A. Pilsbry, 1928 - (BRADYBAENIDAE)
- senckenbergiana minoensisformis, Euhadra senckenbergiana minoensisformis T. Kanamaru, 1940 - (BRADYBAENIDAE)
- senckenbergiana notoensis, Euhadra senckenbergiana notoensis J.T. Kuroda & A. Teramachi, 1937 - (BRADYBAENIDAE)
- senckenbergiana occidentalis, Euhadra senckenbergiana occidentalis M. Azuma, M. Tatewaki & S. Okamura, 1987 - (BRADYBAENIDAE)
- sendaica, Gigantocallista sendaica (S. Nomura, 1938 †) - (VENERIDA (UNASSIGNED)) (FOSSIL)
- sendaica, Pitar sendaica S. Nomura, 1938 † - syn of: Gigantocallista sendaica (S. Nomura, 1938 †) - (VENERIDAE) (FOSSIL)
- sendaica monstrosa, Pitar sendaica monstrosa S. Nomura, 1938 † - syn of: Gigantocallista sendaica (S. Nomura, 1938 †) - (VENERIDAE) (FOSSIL)
- sendaiensis, Chlamys sendaiensis O. Masuda, 1962 † - (PECTINIDAE) (FOSSIL)
- sendanensis, Pecten sendanensis Martin, 1909 † - (PECTINIDAE) (FOSSIL)
- sendelbachensis, Ovactaeonina sendelbachensis Kuhn, 1936 † - (ACTEONINIDAE) (FOSSIL)
- sendelbachensis, Sulcoactaeon sendelbachensis A. Nützel & J. Gründel, 2015 † - (BULLINIDAE) (FOSSIL)
- sendersi, Bullia sendersi R.N. Kilburn, 1978 - (NASSARIIDAE)
- sendersi, Cantharidus sendersi G.T. Poppe, S.P. Tagaro & H. Dekker, 2006 - (TROCHIDAE)
- Senderzoniella, Genus Senderzoniella Betekhtina, 1977 † (SENDERZONIELLIDAE) (FOSSIL)
- SENDERZONIELLIDAE Betekhtina, Starobogatov & Jatsuk, 1987 † - Family (BIVALVIA-HETERODONTA [Subclass]-EUHETERODONTA [Infraclass]-IMPARIDENTIA [Superorder]-VENERIDA [Order]-PRILUKIELLOIDEA [Superfamil) (FOSSIL)
- seneauxi, Unio seneauxi J.R. Bourguignat, 1889 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- seneca, Macrochilina seneca A.H. Clarke, 1904 † - (SOLENISCIDAE) (FOSSIL)
- senecta, Astarte senecta H. Woods, 1906 † - (ASTARTIDAE) (FOSSIL)
- senecta, Dakotacorbula senecta (L.W. Stephenson, 1953 †) - (CORBULIDAE) (FOSSIL)
- senecta, Dakotacorbula senecta (Stpehenson 1952) † - (CORBULIDAE) (FOSSIL)
- senecta, Crassatina senecta Powell, 1931 † - (CRASSATELLIDAE) (FOSSIL)
- senecta, Cymatonota senecta (Sardeson 1896) † - (MODIOMORPHIDAE) (FOSSIL)
- Senectidens, syn of: Genus Limopsis A. Sasso, 1827 (LIMOPSIDAE)
- senectum, Farcimen auriculatum senectum C. de la Torre & P. Bartsch, 1942 - (MEGALOMASTOMIDAE)
- senectus, Lachryma senectus R. Murdoch, 1924 † - (TRIVIIDAE) (FOSSIL)
- Senectus, syn of: Genus Turbo C. Linnaeus, 1758 (TURBINIDAE)
- senefelderi, Bythiospeum senefelderi (D. Geyer, 1907) - (HYDROBIIDAE)
- Senefelderiteuthis, Genus Senefelderiteuthis Engeser & Keupp, 1999 † (TEUTHIDA (UNASSIGNED)) (FOSSIL)
- Senegalarion, Genus Senegalarion J.J. Van Mol, 1970 (UROCYCLIDAE)
- senegalense, Epitonium senegalense H. von Maltzan, 1885 - syn of: Epitonium jolyi (T.A. de M. Monterosato, 1878) - (EPITONIIDAE)
- senegalense, Eovasum senegalense Tessier, 1952 † - (TURBINELLIDAE) (FOSSIL)
- senegalensis, Acteon senegalensis (S.A.A. Petit De La Saussaye, 1851) - (ACTEONIDAE)
- senegalensis, Acteon senegalensis H. von Maltzan, 1885 - syn of: Acteon maltzani P. Dautzenberg, 1910 - (ACTEONIDAE)
- senegalensis, Aporrhais senegalensis J.E. Gray, 1838 - (APORRHAIDAE)
- senegalensis, Anadara senegalensis (J.F. Gmelin, 1791) - (ARCIDAE)
- senegalensis, Assiminea senegalensis E. Rolán, 2013 - (ASSIMINEIDAE)
- senegalensis, Cardita senegalensis L.A. Reeve, 1843 - (CARDITIDAE)
- senegalensis, Semicassis saburon senegalensis Unknown - (CASSIDAE)
- senegalensis, Chama senegalensis L.A. Reeve, 1846 - syn of: Chama crenulata J.B.P.A. Lamarck, 1819 - (CHAMIDAE)
- senegalensis, Felimare bilineata senegalensis J.A. Ortea, Á. Valdés & J.C. García-Gómez, 1996 - (CHROMODORIDIDAE)
- senegalensis, Conus senegalensis G.S. Gulden, R.G. Moolenbeek & J. Goud, 2017 - syn of: Lautoconus mercator (C. Linnaeus, 1758) - (CONIDAE)
- senegalensis, Corbicula senegalensis S. Clessin, 1879 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- senegalensis, Cyrenoida senegalensis G.P. Deshayes, 1855 - syn of: Cyrenoida dupontia L. de Joannis, 1835 - (CYRENOIDIDAE)
- senegalensis, Dendrodoris senegalensis P. Bouchet, 1975 - (DENDRODORIDIDAE)
- senegalensis, Antalis senegalensis (P. Dautzenberg, 1891) - (DENTALIIDAE)
- senegalensis, Elachisina senegalensis E. Rolán & S. Gofas, 2003 - (ELACHISINIDAE)
- senegalensis, Gadila senegalensis (É.A.A. Locard, 1898) - (GADILIDAE)
- senegalensis, Deltoidonautilus senegalensis (Douville, 1920 †) - (HERCOGLOSSIDAE) (FOSSIL)
- senegalensis, Loripinus senegalensis (R. von Cosel, 2005) - (LUCINIDAE)
- senegalensis, Loripinus senegalensis R. von Cosel, 2005 - syn of: Loripinus senegalensis (R. von Cosel, 2005) - (LUCINIDAE)
- senegalensis, Lutraria senegalensis J.E. Gray, 1837 - (MACTRIDAE)
- senegalensis, Mactra senegalensis R.A. Philippi, 1849 - syn of: Mactra glabrata C. Linnaeus, 1767 - (MACTRIDAE)
- senegalensis, Mactra senegalensis L.A. Reeve, 1854 - syn of: Tumbeziconcha senegalica (R. von Cosel, 1995) - (MACTRIDAE)
- senegalensis, Mangelia senegalensis (H.F. Von Maltzan, 1883) - (MANGELIIDAE)
- senegalensis, Marginella senegalensis P.W. Clover, 1990 - (MARGINELLIDAE)
- senegalensis, Ziba senegalensis L.A. Reeve, 1844 - syn of: Ziba carinata (W.J. Swainson, 1824) - (MITRIDAE)
- senegalensis, Mitromorpha senegalensis (E. Rolán & F. Boyer, 2001) - (MITROMORPHIDAE)
- senegalensis, Siratus senegalensis (J.F. Gmelin, 1791) - (MURICIDAE)
- senegalensis, Brachidontes senegalensis J.B.P.A. Lamarck, 1819 - syn of: Brachidontes puniceus (J.F. Gmelin, 1791) - (MYTILIDAE)
- senegalensis, Tritia senegalensis (H. von Maltzan, 1884 †) - (NASSARIIDAE) (FOSSIL)
- senegalensis, Nassa senegalensis H. von Maltzan, 1884 † - syn of: Tritia senegalensis (H. von Maltzan, 1884 †) - (NASSARIIDAE) (FOSSIL)
- senegalensis, Natica senegalensis C.A. Récluz, 1850 - syn of: Natica fulminea (J.F. Gmelin, 1791) - (NATICIDAE)
- senegalensis, Nerita senegalensis J.F. Gmelin, 1791 - (NERITIDAE)
- senegalensis, Oliva senegalensis J.B.P.A. Lamarck, 1811 - syn of: Oliva peruviana J.B.P.A. Lamarck, 1811 - (OLIVIDAE)
- senegalensis, Dendostrea senegalensis (J.F. Gmelin, 1791) - (OSTREIDAE)
- senegalensis, Ostrea senegalensis J.F. Gmelin, 1791 - syn of: Dendostrea senegalensis (J.F. Gmelin, 1791) - (OSTREIDAE)
- senegalensis, Simnia senegalensis (F.A. Schilder, 1931) - (OVULIDAE)
- senegalensis, Cleopatra bulimoides senegalensis P.M.A. Morelet, 1860 - (PALUDOMIDAE)
- senegalensis, Bulinus senegalensis O.F. Müller, 1781 - (PLANORBIDAE)
- senegalensis, Turbonilla senegalensis H. von Maltzan, 1885 - (PYRAMIDELLIDAE)
- senegalensis, Crisilla senegalensis E. Rolán & J.M. Hernández, 2006 - (RISSOIDAE)
- senegalensis, Plagyostila senegalensis E. Rolán & J. Pelorce, 2002 - (RISSOIDAE)
- senegalensis, Tenagodus senegalensis (G.B. II Sowerby, 1876) - (SILIQUARIIDAE)
- senegalensis, Siliquaria senegalensis O.A.L. Mörch, 1860 - syn of: Tenagodus senegalensis (G.B. II Sowerby, 1876) - (SILIQUARIIDAE)
- senegalensis, Spheniopsis senegalensis R. von Cosel, 1995 - (SPHENIOPSIDAE)
- senegalensis, Spondylus senegalensis K. Schreibers, 1793 - (SPONDYLIDAE)
- senegalensis, Tellina senegalensis J.F. Gmelin, 1791 - (TELLINIDAE)
- senegalensis, Tellina senegalensis S.C.T. Hanley, 1844 - syn of: Strigilla splendida (H.E. Anton, 1838) - (TELLINIDAE)
- senegalensis, Oxymeris senegalensis (J.B.P.A. Lamarck, 1822) - (TEREBRIDAE)
- senegalensis, Terebra senegalensis J.B.P.A. Lamarck, 1822 - syn of: Oxymeris senegalensis (J.B.P.A. Lamarck, 1822) - (TEREBRIDAE)
- senegalensis, Psiloteredo senegalensis (H.M.D. de Blainville, 1824) - (TEREDINIDAE)
- senegalensis, Circulus senegalensis W. Adam & J. Knudsen, 1969 - (TORNIDAE)
- senegalensis, Gibbula senegalensis K.T. Menke, 1853 - (TROCHIDAE)
- senegalensis, Anodonta senegalensis I. Lea, 1859 - syn of: Aspatharia dahomeyensis (I. Lea, 1859) - (UNIONIDAE)
- senegalensis, Macromphalus senegalensis (J. Knudsen, 1956) - (VANIKORIDAE)
- senegalensis, Venus senegalensis J.F. Gmelin, 1791 - syn of: Venerupis corrugata senegalensis (J.F. Gmelin, 1791) - (VENERIDAE)
- senegalensis, Venerupis corrugata senegalensis (J.F. Gmelin, 1791) - (VENERIDAE)
- senegalensis, Cymbium senegalensis I. Marche-Marchad, 1978 - (VOLUTIDAE)
- senegalensis, Xenophora senegalensis Fischer, 1873 - (XENOPHORIDAE)
- senegalensis protchei, Aspatharia senegalensis protchei A. Franc, 1949 - syn of: Aspatharia dahomeyensis (I. Lea, 1859) - (IRIDINIDAE)
- Senegaliamarginella, syn of: Genus Marginella J.B.P.A. Lamarck, 1799 (MARGINELLIDAE)
- senegalica, Cypraecassis testiculus senegalica (J.F. Gmelin, 1791) - (CASSIDAE)
- senegalica, Aetheria senegalica J.R. Bourguignat, 1880 - syn of: Etheria elliptica J.B.P.A. Lamarck, 1807 - (ETHERIIDAE)
- senegalica, Mutelina senegalica F.P. Jousseaume, 1886 - syn of: Aspatharia dahomeyensis (I. Lea, 1859) - (IRIDINIDAE)
- senegalica, Tumbeziconcha senegalica (R. von Cosel, 1995) - (MACTRIDAE)
- senegalica, Raeta senegalica R. von Cosel, 1995 - syn of: Tumbeziconcha senegalica (R. von Cosel, 1995) - (MACTRIDAE)
- senegalla, Purpura senegalla P.F. Röding, 1798 - syn of: Ocenebra erinaceus (C. Linnaeus, 1758) - (MURICIDAE)
- senegambianum, Caecum senegambianum L. de Folin, 1870 - (CAECIDAE)
- senegambiensis, Senegona senegambiensis (A.E. Salisbury, 1934) - (TELLINIDAE)
- Senegona, Genus Senegona M. Huber, Langleit & Kreipl, 2015 (TELLINIDAE)
- senensis, Cernuella senensis C. Pollonera, 1892 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- senensis, Limax senensis M. Lessona & C. Pollonera, 1882 - (LIMACIDAE)
- senequieri, Brancoceras senequieri (A.V.M.D. D'Orbigny, 1841 †) - (BRANCOCERATIDAE) (FOSSIL)
- seneri, Chiliborus rosaceus seneri (F.P. Jousseaume, 1884) - (STROPHOCHEILIDAE)
- senescens, Tropidauchenia bavayi senescens H. Nordsieck, 2011 - (CLAUSILIIDAE)
- senestra, Limapontia senestra (J.L.A. Quatrefages, 1844) - (LIMAPONTIIDAE)
- senex, Paraulacosphinctes senex (Oppel, 1868 †) - (ATAXIOCERATIDAE) (FOSSIL)
- senex, Galeodea senex (F.W. Hutton, 1873 †) - (CASSIDAE) (FOSSIL)
- senex, Clausilia senex O. Böttger, 1878 - syn of: Sericata sericata (L. Pfeiffer, 1849) - (CLAUSILIIDAE)
- senex, Pyrostoma plicatula senex (C.A. Westerlund, 1878) - (CLAUSILIIDAE)
- senex, Gomphoceras senex Barrande, 1865 † - (DIESTOCERATIDAE) (FOSSIL)
- senex, Plectostoma senex W.S.S. Van Benthem-Jutting, 1952 - (DIPLOMMATINIDAE)
- senex, Aspella senex W.H. Dall, 1903 - (MURICIDAE)
- senex, Anthraconaia senex (Salter) † - (NAIADITIDAE) (FOSSIL)
- senex, Poteria senex P. Bartsch, 1942 - (NEOCYCLOTIDAE)
- senex, Paranowakia senex Alberti, 1983 † - (PARANOWAKIIDAE) (FOSSIL)
- senex, Parashumardites senex (Miller & Cline, 1934 †) - (PARASHUMARDITIDAE) (FOSSIL)
- senex, Paralaoma senex B. Marshall & T.H. Worthy, 2017 - (PUNCTIDAE)
- senex, Pyrgulina senex C. Hedley, 1902 - (PYRAMIDELLIDAE)
- senex, Tenagodus senex (J. Marwick, 1926 †) - (SILIQUARIIDAE) (FOSSIL)
- senex, Teredo senex É. Lamy, 1923 - (TEREDINIDAE)
- senex, Trigonia senex Kobayashi & A. Mori, 1954 † - (TRIGONIIDAE) (FOSSIL)
- senex, Kaiparathina senex B.A. Marshall, 1995 † - (TURBINIDAE) (FOSSIL)
- senex, Cryptogemma senex D. Frassinetti & Covacevich, 1995 † - (TURRIDAE) (FOSSIL)
- senex, Pronesopupa senex T. Iredale, 1913 - (VERTIGINIDAE)
- sengeli, Discotropites sengeli (Mojsisovics, 1893 †) - (TROPITIDAE) (FOSSIL)
- senghanensis, Serrulinella senghanensis (J. Germain, 1933) - (CLAUSILIIDAE)
- Sengoeria, Genus Sengoeria Harzhauser, Mandic & al., 2016 † (THIARIDAE) (FOSSIL)
- senhousei, Musculus senhousei W.H. Benson, 1842 - syn of: Arcuatula senhousia (W.H. Benson, 1842) - (MYTILIDAE)
- senhousia, Arcuatula senhousia (W.H. Benson, 1842) - (MYTILIDAE)
- senhousia, Musculus senhousia W.H. Benson in T.E. Cantor, 1842 - syn of: Arcuatula senhousia (W.H. Benson, 1842) - (MYTILIDAE)
- senhousia, Modiolus senhousia W.H. Benson in T.E. Cantor, 1842 - syn of: Arcuatula senhousia (W.H. Benson, 1842) - (MYTILIDAE)
- Seniculus, syn of: Subgenus Cerion (Strophiops) W.H. Dall, 1894 (CERIONIDAE)
- seniensis, Chlamys seniensis (J.B.P.A. Lamarck, 1819 †) - (PECTINIDAE) (FOSSIL)
- seniensis, Aequipecten seniensis (J.B.P.A. Lamarck, 1819 †) - (PECTINIDAE) (FOSSIL)
- Senilauria, Subgenus Lauria (Senilauria) H.A. Pilsbry, 1928 (LAURIIDAE)
- senile, Beaniceras senile Buckman, 1918 † - (LIPAROCERATIDAE) (FOSSIL)
- Senilia, Genus Senilia J.E. Gray, 1842 (ARCIDAE)
- senililevis, Sunrisites senililevis Longridge & al., 2008 † - (PSILOCERATIDAE) (FOSSIL)
- senilis, Amastra senilis D.D. Baldwin, 1903 - (AMASTRIDAE)
- senilis, Senilia senilis (C. Linnaeus, 1758) - (ARCIDAE)
- senilis, Placostylus senilis (J. Gassies, 1869) - (BOTHRIEMBRYONTIDAE)
- senilis, Cardita senilis J.B.P.A. Lamarck, 1805 - (CARDITIDAE)
- senilis, Albinaria senilis (E.A. Rossmässler, 1836) - (CLAUSILIIDAE)
- senilis, Clavagella senilis F.P. Jousseaume in É. Lamy, 1923 - syn of: Bryopa lata (W.J. Broderip, 1834) - (CLAVAGELLIDAE)
- senilis, Bryopa senilis F.P. Jousseaume in É. Lamy, 1923 - syn of: Bryopa lata (W.J. Broderip, 1834) - (CLAVAGELLIDAE)
- senilis, Corbula senilis Phillips, 1836 † - (CORBULIDAE) (FOSSIL)
- senilis, Hamulina senilis (Ooster, 1860) - (HAMULINIDAE)
- senilis, Callihoplites senilis Spath, 1928 † - syn of: Callihoplites tetragonus Seeley, 1865 † - (HOPLITIDAE) (FOSSIL)
- senilis, Discula polymorpha senilis (R.T. Lowe, 1852) - (HYGROMIIDAE)
- senilis, Margarites senilis Mojsisovics, 1893 † - (MARGARITIDAE) (FOSSIL)
- senilis, Murex brevispina senilis F.P. Jousseaume, 1874 - (MURICIDAE)
- senilis, Quadricarina senilis (J. Perner, 1907 †) - (PORCELLIIDAE) (FOSSIL)
- senilis, Oehlertia senilis J. Perner, 1907 † - syn of: Quadricarina senilis (J. Perner, 1907 †) - (PORCELLIIDAE) (FOSSIL)
- senilis, Marshallaria senilis (P. Marshall & R. Murdoch, 1920 †) - (PTYCHATRACTIDAE) (FOSSIL)
- senilis, Sanguinolites senilis F. McCoy, 1844 † - (SANGUINOLITIDAE) (FOSSIL)
- senilis, Streblochondria senilis (Herrick, 1888 †) - (STREBLOCHONDRIIDAE) (FOSSIL)
- senilis, Obesula senilis F.P. Jousseaume, 1898 - (TRIPHORIDAE)
- senilis, Pleurotoma senilis Wood, 1877 † - (TURRIDAE) (FOSSIL)
- senilis castrensis, Albinaria senilis castrensis (A. Mousson, 1859) - (CLAUSILIIDAE)
- senilis corcyrensis, Albinaria senilis corcyrensis (A. Mousson, 1859) - (CLAUSILIIDAE)
- senilis epirotica, Albinaria senilis epirotica (A. Mousson, 1859) - (CLAUSILIIDAE)
- senilis flavescens, Albinaria senilis flavescens (O. Böttger, 1878) - (CLAUSILIIDAE)
- senilis inconstans, Albinaria senilis inconstans (A. Mousson, 1859) - (CLAUSILIIDAE)
- senilis kolpomyrtensis, Albinaria senilis kolpomyrtensis T.C.M. Kemperman & E. Gittenberger, 1990 - (CLAUSILIIDAE)
- senilis leucadia, Albinaria senilis leucadia (C.A. Westerlund, 1901) - (CLAUSILIIDAE)
- senilis saginata, Albinaria senilis saginata (C.A. Westerlund, 1901) - (CLAUSILIIDAE)
- seninskii, Turricaspia seninskii V.V. Anistratenko & Gozhik, 1995 † - (HYDROBIIDAE) (FOSSIL)
- seninskii, Melanopsis seninskii W.A. Wenz, 1928 † - (MELANOPSIDAE) (FOSSIL)
- senior, Nerinella senior Delpey, 1942 † - (NERINELLIDAE) (FOSSIL)
- senior, Teicherticeras senior Chlupac & Turek, 1983 † - (TEICHERTICERATIDAE) (FOSSIL)
- Senis, Genus Senis Stephenson, 1953 † (PHARIDAE) (FOSSIL)
- seniscula, Discotectonica seniscula (J. Marwick, 1931 †) - (ARCHITECTONICIDAE) (FOSSIL)
- senisculus, Taniella senisculus (Finlay & J. Marwick, 1937 †) - (NATICIDAE) (FOSSIL)
- senistriata, Pyrgiscus senistriata Wood, 1877 † - (PYRAMIDELLIDAE) (FOSSIL)
- senitshika, Eutheba emigrata senitshika B. Hausdorf, 1996 - (HYGROMIIDAE)
- senius, Calliostoma senius A. de Rochebrune & J.F. Mabille, 1891 - syn of: Calliostoma nudum (R.A. Philippi, 1845) - (CALLIOSTOMATIDAE)
- senkakuensis, Euphaedusa senkakuensis J.T. Kuroda, 1960 - (CLAUSILIIDAE)
- senkakuensis, Murex senkakuensis T. Shikama, 1973 - syn of: Vokesimurex gallinago (G.B. III Sowerby, 1903) - (MURICIDAE)
- sennaariensis, Limicolaria sennaariensis R.J. Shuttleworth - syn of: Limicolaria sennarensis R.J. Shuttleworth - (ACHATINIDAE)
- sennaariensis, Macroptychia sennaariensis (L. Pfeiffer, 1856) - (CLAUSILIIDAE)
- sennarensis, Limicolaria sennarensis R.J. Shuttleworth - (ACHATINIDAE)
- sennarensis hartmanni, Limicolaria sennarensis hartmanni E.C. Von Martens, 1875 - (ACHATINIDAE)
- senni, Semicassis senni Rustch, 1934 † - (CASSIDAE) (FOSSIL)
- senni, Satondella senni D.L. Geiger, 2003 - (SCISSURELLIDAE)
- sennottorum, Gradiconus sennottorum (H.A. Rehder & R.T. Abbott, 1951) - (CONIDAE)
- Senobolma, syn of: Genus Bolma A. Risso, 1826 (TURBINIDAE)
- senoi, Megaleledone senoi Iw. Taki, 1961 - syn of: Megaleledone setebos (G.C. Robson, 1932) - (MEGALELEDONIDAE)
- senoi, Pareledone senoi Iw. Taki, 1961 - syn of: Megaleledone setebos (G.C. Robson, 1932) - (OCTOPODIDAE)
- senoides, Paraulacosphinctes senoides Tavera, 1985 † - (ATAXIOCERATIDAE) (FOSSIL)
- senoniana, Struthiolarella senoniana Y. Camacho-García & Zinsmeister, 1989 † - (STRUTHIOLARIIDAE) (FOSSIL)
- senoniana, Struthiolaria senoniana Del Rio, 2002 - (STRUTHIOLARIIDAE)
- senotrussovi, Ochotochlamys senotrussovi Truschelev, 1996 † - (PECTINIDAE) (FOSSIL)
- senshumaruae, Buccinum senshumaruae (S. Kosuge & S. Ishiyama, 1971) - (BUCCINIDAE)
- Sensilloherpia, Genus Sensilloherpia L. Salvini-Plawén, 2008 (SIMROTHIELLIDAE)
- Sensuitrochus, Genus Sensuitrochus Quintero & Revilla, 1966 † (CALLIOSTOMATIDAE) (FOSSIL)
- senta, Phenacolepas senta C. Hedley, 1899 - (PHENACOLEPADIDAE)
- senta, Marshallaria senta Powell, 1942 † - (PTYCHATRACTIDAE) (FOSSIL)
- senta, Sepia senta C.C. Lu & D.G. Reid, 1997 - (SEPIIDAE)
- sentaniensis, Coleglabra sentaniensis (W.S.S. Van Benthem-Jutting, 1963) - (CLENCHIELLIDAE)
- sentaniensis, Velesunio sentaniensis (F. Haas, 1924) - (HYRIIDAE)
- sentatus, Drymaeus sentatus Á. De Oliveira, Silveira e Sá & E.C. de A. Bessa, 1992 - (BULIMULIDAE)
- senticosa, Cancellaria senticosa C. Linnaeus, 1758 - syn of: Phos senticosus (C. Linnaeus, 1758) - (CANCELLARIIDAE)
- senticosa, Pinna senticosa A.A. Gould, 1850 - syn of: Atrina zelandica (J.E. Gray, 1835) - (PINNIDAE)
- senticosa, Licina senticosa R.J. Shuttleworth, 1854 - (POMATIIDAE)
- senticosum, Dallocardia senticosum (Sowerby, 1833) - (CARDIIDAE)
- senticosum, Cardium senticosum G.B. I Sowerby, 1833 - syn of: Dallocardia senticosum (Sowerby, 1833) - (CARDIIDAE)
- senticosus, Fusus senticosus R. Tate 1888 † - (FASCIOLARIIDAE) (FOSSIL)
- senticosus, Hirtomurex senticosus (H. Adams & A. Adams, 1863) - (MURICIDAE)
- senticosus, Murex senticosus C. Linnaeus, 1758 - syn of: Phos senticosus (C. Linnaeus, 1758) - (MURICIDAE)
- senticosus, Phos senticosus (C. Linnaeus, 1758) - (NASSARIIDAE)
- senticosus, Hispidofusus senticosus (R. Tate, 1888 †) - (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- senticosus, Pecten senticosus J.G. Jeffreys, 1879 - syn of: Talochlamys pusio (C. Linnaeus, 1758) - (PECTINIDAE)
- senticosus, Sirenites senticosus (Dittmar, 1866 †) - (TRACHYCERATIDAE) (FOSSIL)
- sentinense, Cingulifera cingulatum sentinense (C. Piersanti, 1933) - (HELICIDAE)
- sentis, Caribachlamys sentis (L.A. Reeve, 1853) - (PECTINIDAE)
- sentix, Babelomurex sentix (F.M. Bayer, 1971) - (MURICIDAE)
- sentix carcassii, Coralliophila sentix carcassii K. Nicolay & M. Angioy, 1985 - syn of: Babelomurex sentix (F.M. Bayer, 1971) - (MURICIDAE)
- sentocosus, Fusus sentocosus R. Tate, 1888 † - (FASCIOLARIIDAE) (FOSSIL)
- sentoma, Strobiligera sentoma (W.H. Dall, 1927) - (TRIPHORIDAE)
- sentoma, Inella sentoma (W.H. Dall, 1927) - syn of: Strobiligera sentoma (W.H. Dall, 1927) - (TRIPHORIDAE)
- sentosus, Spinaxinus sentosus P.G. Oliver & A.M. Holmes, 2006 - (THYASIRIDAE)
- Sentularia, Genus Sentularia † (CAENOGASTROPODA (UNASSIGNED)) (FOSSIL)
- sentus, Acanthotrophon sentus S.S. Berry, 1969 - (MURICIDAE)
- senus, Calvertia senus F.J. Cantraine, 1836 † - syn of: Theodoxus groyanus (A.E.J. Férussac, 1823 †) - (NERITIDAE) (FOSSIL)
- senyumensis, Alycaeus senyumensis Foon & Liew, 2017 - (CYCLOPHORIDAE)
- seomjinensis, Pronodularia seomjinensis T. Kondo, H. Yang & S.H. Choi, 2007 - (UNIONIDAE)
- Sepaea, syn of: Genus Achatina J.B.P.A. Lamarck, 1799 (ACHATINIDAE)
- separabilis, Austrofusus separabilis P.A. Maxwell, 1992 † - (BUCCINIDAE) (FOSSIL)
- separabilis, Aeneator marshalli separabilis R.K. Dell, 1956 - (BUCCINIDAE)
- separabilis, Juraphyllites separabilis Fucini, 1901 † - (JURAPHYLLITIDAE) (FOSSIL)
- separabilis, Megalobulimus separabilis (H.C. Fulton, 1903) - (MEGALOBULIMIDAE)
- separabilis, Tritia separabilis (C.R. Laws, 1939 †) - (NASSARIIDAE) (FOSSIL)
- separabilis, Cypraedia separabilis (Schilder 1928 †) - (OVULIDAE) (FOSSIL)
- separabilis, Cosa separabilis C.R. Laws, 1940 † - (PHILOBRYIDAE) (FOSSIL)
- separabilis, Turbonilla separabilis C.R. Laws, 1937 † - (PYRAMIDELLIDAE) (FOSSIL)
- separanda, Austrochloritis separanda T. Iredale, 1938 - (CAMAENIDAE)
- separanda, Parviterebra separanda (J.R. le B. Tomlin, 1923) - (COLUMBELLIDAE)
- separanda, Mitra separanda H.F. Von Maltzan, 1884 - syn of: Mitromorpha separanda (H.F. Von Maltzan, 1884) - (MITRIDAE)
- separanda, Mitromorpha separanda (H.F. Von Maltzan, 1884) - (MITROMORPHIDAE)
- separanda, Terebra separanda J.R. le B. Tomlin, 1923 - syn of: Parviterebra separanda (J.R. le B. Tomlin, 1923) - (TEREBRIDAE)
- separanda, Volutomitra separanda H.F. Von Maltzan, 1884 - syn of: Mitromorpha separanda (H.F. Von Maltzan, 1884) - (VOLUTOMITRIDAE)
- separata, Unitas separata (G.P. Deshayes, 1864 †) - (CANCELLARIIDAE) (FOSSIL)
- separata, Histioteuthis separata M. Sasaki, 1915 - syn of: Histioteuthis meleagroteuthis (C. Chun, 1910) - (HISTIOTEUTHIDAE)
- separata, Artinskia separata Leonova, 1992 † - (MEDLICOTTIIDAE) (FOSSIL)
- separata, Cochlis separata (G.P. Deshayes, 1864 †) - (NATICIDAE) (FOSSIL)
- separata, Meroena separata (G.P. Deshayes, 1857 †) - (VENERIDAE) (FOSSIL)
- Separatista, Genus Separatista J.E. Gray, 1847 (CAPULIDAE)
- separatista, Separatista separatista L.W. Dillwyn, 1817 - syn of: Separatista helicoides (J.F. Gmelin, 1791) - (CAPULIDAE)
- separatista, Turbo separatista L.W. Dillwyn, 1817 - syn of: Separatista helicoides (J.F. Gmelin, 1791) - (TURBINIDAE)
- separatum, Lysagoraceras separatum P.A. Zhuravleva, 1972 † - syn of: Lysagoroceras subfusiforme (Münster, 1840 †) - (POTERIOCERATIDAE) (FOSSIL)
- separatum, Phillipsoceras separatum Ruzhencev & Bogoslovskaya, 1978 † - (RETICULOCERATIDAE) (FOSSIL)
- separatus, Sinuites separatus Reed, 1921 † - (SINUITIDAE) (FOSSIL)
- separica, Euomphalia separica J.R. Bourguignat, 1878 - syn of: Euomphalia strigella (J.P.R. Draparnaud, 1801) - (HYGROMIIDAE)
- sepelibilis, Rugobela sepelibilis (Powell & J.A. Bartrum, 1929 †) - (MURICIDAE) (FOSSIL)
- seperbes, Aegides seperbes L.Y. Jiang, 1980 † - (MAIKHANELLIDAE) (FOSSIL)
- sepes, Phacoides sepes K.H. Barnard, 1964 - (LUCINIDAE)
- Sepia, Genus Sepia C. Linnaeus, 1758 (SEPIIDAE)
- SEPIADARIIDAE Fischer, 1882 - Family (CEPHALOPODA-COLEOIDEA [Subclass]-DECAPODIFORMES [Superorder]-SEPIIDA [Order])
- Sepiadarium, Genus Sepiadarium J.J.S. Steenstrup, 1881 (SEPIADARIIDAE)
- sepiculata, Haliotis sepiculata L.A. Reeve, 1846 - syn of: Haliotis diversicolor L.A. Reeve, 1846 - (HALIOTIDAE)
- Sepidium, syn of: Genus Sepietta A. Naef, 1912 (SEPIOLIDAE)
- Sepiella, Genus Sepiella J.E. Gray, 1849 (SEPIIDAE)
- Sepietta, Genus Sepietta A. Naef, 1912 (SEPIOLIDAE)
- SEPIIDA (UNASSIGNED) - Family (CEPHALOPODA-COLEOIDEA [Subclass]-DECAPODIFORMES [Superorder]-SEPIIDA [Order]) (FOSSIL)
- SEPIIDAE Leach, 1817 - Family (CEPHALOPODA-COLEOIDEA [Subclass]-DECAPODIFORMES [Superorder]-SEPIIDA [Order])
- sepimentum, Buccinum sepimentum P.C.A.S.L. Rang, 1832 - syn of: Fulmentum sepimentum (P.C.A.S.L. Rang, 1832) - (BUCCINIDAE)
- sepimentum, Caecum sepimentum L. de Folin, 1868 - (CAECIDAE)
- sepimentum, Fulmentum sepimentum (P.C.A.S.L. Rang, 1832) - (PSEUDOLIVIDAE)
- sepimentum arcuata, Caecum sepimentum arcuata L. de Folin, 1867 - syn of: Caecum sepimentum L. de Folin, 1868 - (CAECIDAE)
- sepioidea, Belosepia sepioidea (H.M.D. de Blainville, 1825 †) - (BELOSAEPIIDAE) (FOSSIL)
- sepioidea, Sepioteuthis sepioidea (H.M.D. de Blainville, 1823) - (LOLIGINIDAE)
- sepioidea, Eledone sepioidea A. de Rochebrune, 1884 - syn of: Eledone cirrhosa (J.B.P.A. Lamarck, 1798) - (OCTOPODIDAE)
- sepiola, Sepia sepiola C. Linnaeus, 1758 - syn of: Sepiola rondeletii W.E. Leach, 1817 - (SEPIIDAE)
- Sepiola, Genus Sepiola W.E. Leach, 1817 (SEPIOLIDAE)
- SEPIOLIDAE Leach, 1817 - Family (CEPHALOPODA-COLEOIDEA [Subclass]-DECAPODIFORMES [Superorder]-SEPIOLIDA [Order])
- Sepiolina, Genus Sepiolina A. Naef, 1912 (SEPIOLIDAE)
- Sepioloidea, Genus Sepioloidea D'Orbigny, 1845 (SEPIADARIIDAE)
- sepioloides, Chtenopteryx sepioloides P. Rancurel, 1970 - (CHTENOPTERYGIDAE)
- Sepioteuthis, Genus Sepioteuthis H.M.D. De Blainville, 1824 (LOLIGINIDAE)
- sepium, Zebrina sepium J.F. Gmelin, 1791 - syn of: Zebrina detrita (O.F. Müller, 1774) - (ENIDAE)
- sepkoskii, Praelittorina sepkoskii A. Nützel & Erwin, 2004 † - (ARCHAEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- seposita, Doris seposita P. Fischer, 1872 - syn of: Doris verrucosa C. Linnaeus, 1758 - (DORIDIDAE)
- sepositum, Trachylytoceras sepositum Meneghini, 1875 † - (LYTOCERATIDAE) (FOSSIL)
- sepositum, Bellerato sepositum (C.R. Laws, 1935 †) - (TRIVIIDAE) (FOSSIL)
- sepositus, Dermomurex sepositus (R. Houart, 1993) - (MURICIDAE)
- sepositus, Trialatella sepositus R. Houart, 1993 - syn of: Dermomurex sepositus (R. Houart, 1993) - (MURICIDAE)
- seppenradensis, Parapuzosia seppenradensis (Landois, 1895 †) - (DESMOCERATIDAE) (FOSSIL)
- Septa, Genus Septa G. Perry, 1810 (RANELLIDAE)
- septa, Nototeredo septa S. Mawatari & H. Kitamura, 1960 - syn of: Nototeredo edax (C. Hedley, 1895) - (TEREDINIDAE)
- septadens, Paravitrea septadens L.R. Hubricht, 1978 - (ZONITIDAE)
- septangularis, Bellaspira septangularis G. Montagu, 1803 - syn of: Haedropleura septangularis (G. Montagu, 1803) - (DRILLIIDAE)
- septangularis, Haedropleura septangularis (G. Montagu, 1803) - (HORAICLAVIDAE)
- septangularis, Murex septangularis G. Montagu, 1803 - syn of: Haedropleura septangularis (G. Montagu, 1803) - (MURICIDAE)
- septangularis, Pileolus septangularis Stanton, 1947 † - (PILEOLIDAE) (FOSSIL)
- septangularis albida, Haedropleura septangularis albida T.A. de M. Monterosato, 1878 - syn of: Haedropleura septangularis (G. Montagu, 1803) - (HORAICLAVIDAE)
- septangularis fulva, Haedropleura septangularis fulva T.A. de M. Monterosato, 1878 - syn of: Haedropleura septangularis (G. Montagu, 1803) - (HORAICLAVIDAE)
- septangularis maculata, Haedropleura septangularis maculata T.A. de M. Monterosato, 1878 - syn of: Haedropleura septangularis (G. Montagu, 1803) - (HORAICLAVIDAE)
- septangularis madeirensis, Bellaspira septangularis madeirensis F. Nordsieck, 1977 - syn of: Haedropleura septangularis madeirensis (F. Nordsieck, 1977) - (DRILLIIDAE)
- septangularis madeirensis, Haedropleura septangularis madeirensis (F. Nordsieck, 1977) - (HORAICLAVIDAE)
- septangularis parvulata, Bela septangularis parvulata F. Sacco, 1904 - syn of: Haedropleura septangularis (G. Montagu, 1803) - (MANGELIIDAE)
- septangularis rigida, Haedropleura septangularis rigida (L.A. Reeve, 1846) - (HORAICLAVIDAE)
- septapilia, Tubercliopsis septapilia (C.F. Laseron, 1951) - (CERITHIOPSIDAE)
- Septaria, Genus Septaria A.E.J. Férussac, 1807 (NERITIDAE)
- Septariellina, Genus Septariellina J.C. Bequaert & W.J. Clench, 1936 † (NERITILIIDAE) (FOSSIL)
- Septarius, syn of: Genus Septaria A.E.J. Férussac, 1807 (NERITIDAE)
- septata, Pycnotrochus septata (Gubanov & al., 1995 †) - (ANOMPHALIDAE) (FOSSIL)
- septata, Caprinuloidea septata K.V.W. Palmer, 1928 † - (CAPRINULOIDEIDAE) (FOSSIL)
- septata, Zhenxiongella septata (H. Guo, 1988 †) - (CYCLOCONCHIDAE) (FOSSIL)
- septata, Fletcherviewia septata Cook, 1993 † - (EUOMPHALIDAE) (FOSSIL)
- septata, Bemella septata (Rozanov & Missarzhevsky, 1966 †) - (HELCIONELLIDAE) (FOSSIL)
- septata, Isfarispira septata Gubanov & al., 1995 † - syn of: Pycnotrochus septata (Gubanov & al., 1995 †) - (OMPHALOTROCHIDAE) (FOSSIL)
- septatus, Nehdenites septatus (Termier, 1950 †) - (CHEILOCERATIDAE) (FOSSIL)
- septemangulatus, Murex septemangulatus E. Donovan, 1804 - syn of: Haedropleura septangularis (G. Montagu, 1803) - (MURICIDAE)
- septemcastrensis, Cimomia septemcastrensis F. Haas & Miller, 1952 † - (HERCOGLOSSIDAE) (FOSSIL)
- Septemchiton, Genus Septemchiton Bergenhayn, 1955 † (PALEOLORICATA (UNASSIGNED)) (FOSSIL)
- septemcosta, Poirieria septemcosta (M. Rouault, 1850 †) - (MURICIDAE) (FOSSIL)
- septemcostata, Cancellaria septemcostata N.H. Odhner, 1917 - syn of: Trigonostoma bicolor (R.B. Hinds, 1843) - (CANCELLARIIDAE)
- septemcostata, Ithycythara septemcostata (M.M. Schepman, 1913) - (MANGELIIDAE)
- septemcostata, Plicatula septemcostata E. Forbes, 1846 † - (PLICATULIDAE) (FOSSIL)
- septemcostata, Voluta septemcostata E. Forbes, 1846 † - (VOLUTIDAE) (FOSSIL)
- septemcostata tenuis, Ithycythara septemcostata tenuis (M.M. Schepman, 1913) - (MANGELIIDAE)
- septemcostatum, Dentalium septemcostatum J.W. Brazier, 1877 - syn of: Dentalium cheverti B. Sharp & H.A. Pilsbry, 1897 - (DENTALIIDAE)
- septemcostatus, Cantharus septemcostatus G.J. Vermeij & P. Bouchet, 1998 - (BUCCINIDAE)
- septemcostatus, Callochiton septemcostatus J.R.M. Bergenhayn, 1933 - (CALLOCHITONIDAE)
- septemcostatus, Acirsa septemcostatus A.N. Golikov, 1986 - syn of: Acirsa morsei (M. Yokoyama, 1926) - (EPITONIIDAE)
- septemcostatus, Tachyrhynchus septemcostatus A.N. Golikov, 1986 - syn of: Acirsa morsei (M. Yokoyama, 1926) - (TURRITELLIDAE)
- septemdentata, Chondrina septemdentata A. Risso, 1826 - syn of: Chondrina avenacea (J.G. Bruguière, 1792) - (CHONDRINIDAE)
- septemdentata, Euchondrus septemdentata (J.R. Roth, 1839) - (ENIDAE)
- septemdentata, Personella septemdentata (W.M. Gabb, 1860 †) - (PERSONIDAE) (FOSSIL)
- septemdentata, Vertigo septemdentata A.E.J. Férussac, 1821 - syn of: Vertigo antivertigo J.P.R. Draparnaud, 1801 - (VERTIGINIDAE)
- septemdierum, Bathymodiolus septemdierum J. Hashimoto & T.A. Okutani, 1994 - (MYTILIDAE)
- septemgyratiformis, Anisus septemgyratiformis (F. Gottschick, 1911 †) - (PLANORBIDAE) (FOSSIL)
- septemgyratus, Anisus septemgyratus (E.A. Rossmässler, 1835) - (PLANORBIDAE)
- septemlineata, Hydrobia septemlineata Lomnicki, 1886 † - (HYDROBIIDAE) (FOSSIL)
- septemlirata, Turris septemlirata (G.F. Harris, 1897 †) - (TURRIDAE) (FOSSIL)
- septemmacula, Rotaovula septemmacula (M. Azuma, 1974) - (OVULIDAE)
- septemplicata, Volvaria septemplicata A. Risso, 1826 - syn of: Gibberula miliaria (C. Linnaeus, 1758) - (ACTEONIDAE)
- septemplicata, Solatopupa septemplicata M. Lessona, 1880 - syn of: Solatopupa similis (J.G. Bruguière, 1792) - (CHONDRINIDAE)
- septemplicata, Siciliaria septemplicata (R.A. Philippi, 1836) - (CLAUSILIIDAE)
- septemplicata, Marginella septemplicata A. Risso, 1826 - syn of: Gibberula miliaria (C. Linnaeus, 1758) - (MARGINELLIDAE)
- septemplicata alcamoensis, Siciliaria septemplicata alcamoensis R.A.M. Brandt, 1961 - (CLAUSILIIDAE)
- septemplicata hemmeni, Siciliaria septemplicata hemmeni J. Beckmann, 2004 - (CLAUSILIIDAE)
- septemputeanus, Pseudocatillus septemputeanus Ebersin, 1967 † - (CARDIIDAE) (FOSSIL)
- septemradiata, Patella septemradiata G. Fischer von Waldheim, 1807 - syn of: Cymbula granatina (C. Linnaeus, 1758) - (PATELLIDAE)
- septemradiatum, Pseudamussium septemradiatum (Sacco 1897) † - (PECTINIDAE) (FOSSIL)
- septemradiatum, Pseudamussium septemradiatum O.F. Müller, 1776 - syn of: Pseudamussium peslutrae (C. Linnaeus, 1771) - (PECTINIDAE)
- septemradiatum, Pseudamussium septemradiatum Auct. non O.F. Müller, 1776 - syn of: Pseudamussium clavatum (G.S. Poli, 1795) - (PECTINIDAE)
- septemradiatus, Pecten septemradiatus O.F. Müller, 1776 - syn of: Pseudamussium peslutrae (C. Linnaeus, 1771) - (PECTINIDAE)
- septemseriatum, Euomphaloceras septemseriatum (Cragin, 1893 †) - (ACANTHOCERATIDAE) (FOSSIL)
- Septemspiraliana, syn of: Genus Cochlostoma G. Jan, 1830 (COCHLOSTOMATIDAE)
- septemspiralis, Cochlostoma septemspiralis (G.de Razoumowsky, 1789) - (COCHLOSTOMATIDAE)
- Septemspiralis, syn of: Genus Cochlostoma G. Jan, 1830 (COCHLOSTOMATIDAE)
- septemspiralis bosniense, Cochlostoma septemspiralis bosniense A. Zilch, 1958 - (COCHLOSTOMATIDAE)
- septemspiralis heydenianum, Cochlostoma septemspiralis heydenianum (S. Clessin, 1879) - (COCHLOSTOMATIDAE)
- septemspiralis riedeli, Cochlostoma septemspiralis riedeli A. Varga, 1980 - (COCHLOSTOMATIDAE)
- septemstriatum, Pyrazus septemstriatum T. Say, 1832 - syn of: Lampanella minima (J.F. Gmelin, 1791) - (POTAMIDIDAE)
- septemtrionalis, Mecyntera septemtrionalis (C. Hedley, 1891) - (CAMAENIDAE)
- septemtrionalis, Apiocypraea septemtrionalis Schilder, 1929 † - syn of: Apiocypraea subphysis septemtrionalis (Schilder, 1929 †) - (EOCYPRAEIDAE) (FOSSIL)
- septemtrionalis, Apiocypraea subphysis septemtrionalis (Schilder, 1929 †) - (EOCYPRAEIDAE) (FOSSIL)
- septemtrionalis, Tritonia septemtrionalis K. Baba, 1937 - syn of: Tochuina tetraquetra diomedea (L.S.R. Bergh, 1894) - (TRITONIIDAE)
- septemvalvis, Callochiton septemvalvis (G. Montagu, 1803) - (CALLOCHITONIDAE)
- septemvalvis, Chiton septemvalvis G. Montagu, 1803 - syn of: Callochiton septemvalvis (G. Montagu, 1803) - (CHITONIDAE)
- septemvalvis achatinus, Callochiton septemvalvis achatinus T. Brown, 1827 - syn of: Callochiton septemvalvis (G. Montagu, 1803) - (CALLOCHITONIDAE)
- septemvalvis euplaeae, Callochiton septemvalvis euplaeae (O.G. Costa, 1829) - (CALLOCHITONIDAE)
- septemvillei, Bela septemvillei P. Dautzenberg, 1913 - syn of: Bela nebula (G. Montagu, 1803) - (MANGELIIDAE)
- septemvolva, Polygyra septemvolva T. Say, 1818 - (POLYGYRIDAE)
- septemvolva volvoxis, Polygyra septemvolva volvoxis L. Pfeiffer, 1846 - (POLYGYRIDAE)
- septenaria, Anomia septenaria A.A. Olsson, 1928 † - (ANOMIIDAE) (FOSSIL)
- septenarium, Pulchrastele septenarium (J.C. Melvill & R. Standen, 1899) - (TROCHIDAE)
- septenarius, Chesapecten jeffersonius septenarius (T. Say, 1824 †) - (PECTINIDAE) (FOSSIL)
- septenarius, Ceratosphinctes septenarius (F.A. von Quenstedt, 1858 †) - (PERISPHINCTIDAE) (FOSSIL)
- septenarius, Clanculus septenarius K.T. Menke, 1843 - syn of: Pulchrastele septenarium (J.C. Melvill & R. Standen, 1899) - (TROCHIDAE)
- septenarius, Clanculus septenarius J.C. Melvill & R. Standen, 1899 - syn of: Pulchrastele septenarium (J.C. Melvill & R. Standen, 1899) - (TROCHIDAE)
- septencincta, Sheppardiconcha septencincta Roxo, 1937 † - (THIARIDAE) (FOSSIL)
- septendentata, Distorsio septendentata † - (PERSONIDAE) (FOSSIL)
- septentrionale, Arctoceras septentrionale (Diener, 1895 †) - (ARCTOCERATIDAE) (FOSSIL)
- septentrionale, Laureloceras septentrionale (Foerste & Savage, 1927 †) - (BARRANDOCERATIDAE) (FOSSIL)
- septentrionale, Megalomphala septentrionale C.M. Poulsen, 1974 † - (BUCANIIDAE) (FOSSIL)
- septentrionale, Manticoceras septentrionale Miller, 1938 † - syn of: Crickites cordiformis Miller, 1938 † - (GEPHUROCERATIDAE) (FOSSIL)
- septentrionale, Bythiospeum clessini septentrionale (H. Schütt, 1960) - (HYDROBIIDAE)
- septentrionale, Loxonema septentrionale E.F.R.K. Koken & J. Perner, 1925 † - (LOXONEMATIDAE) (FOSSIL)
- septentrionale, Westonoceras septentrionale Foerste & Savage, 1927 † - syn of: Laureloceras septentrionale (Foerste & Savage, 1927 †) - (WESTONOCERATIDAE) (FOSSIL)
- septentrionalis, Assiminea japonica septentrionalis T. Habe, 1942 - (ASSIMINEIDAE)
- septentrionalis, Ordtrachia septentrionalis G.A. Solem, 1984 - (CAMAENIDAE)
- septentrionalis, Brocchinia septentrionalis (H.J. Finlay, 1930) - (CANCELLARIIDAE)
- septentrionalis, Chlamydephorus septentrionalis (L. Forcart, 1967) - (CHLAMYDEPHORIDAE)
- septentrionalis, Clathurella septentrionalis É.A.A. Locard, 1892 - syn of: Raphitoma echinata (G.B. Brocchi, 1814) - (CLATHURELLIDAE)
- septentrionalis, Bathyptychia septentrionalis H. Nordsieck, 2016 - (CLAUSILIIDAE)
- septentrionalis, Clausilia septentrionalis S. Clessin, 1884 - syn of: Pyrostoma borealis (O. Böttger, 1878) - (CLAUSILIIDAE)
- septentrionalis, Cardiomya gouldiana septentrionalis J.T. Kuroda, 1948 - (CUSPIDARIIDAE)
- septentrionalis, Cystopelta septentrionalis J. Stanisic, 2010 - (CYSTOPELTIDAE)
- septentrionalis, Antalis septentrionalis J.T. Kuroda & T. Habe in T. Habe, 1963 - syn of: Antalis weinkauffi (R.W. Dunker, 1877) - (DENTALIIDAE)
- septentrionalis, Obtortio septentrionalis (S. Tokunaga †) - (DIASTOMATIDAE) (FOSSIL)
- septentrionalis, Diplommatina septentrionalis H.A. Pilsbry, 1901 - (DIPLOMMATINIDAE)
- septentrionalis, Glycymeris septentrionalis (A.T. von Middendorff, 1849) - (GLYCYMERIDIDAE)
- septentrionalis, Ocruranus septentrionalis Peel & Skovsted, 2005 † - (HALKIERIIDAE) (FOSSIL)
- septentrionalis, Halobia septentrionalis Smith, 1927 † - (HALOBIIDAE) (FOSSIL)
- septentrionalis, Anatomites septentrionalis Smith, 1927 † - (HALORITIDAE) (FOSSIL)
- septentrionalis, Helicarion septentrionalis G.A. von Jacobi, 1898 - (HELICARIONIDAE)
- septentrionalis, Abchasohela septentrionalis B. Hausdorf, 2001 - (HYGROMIIDAE)
- septentrionalis, Cytora septentrionalis (H.H. Suter, 1907) - (LIAREIDAE)
- septentrionalis, Maclurites septentrionalis E.F.R.K. Koken & J. Perner, 1925 † - (MACLURITIDAE) (FOSSIL)
- septentrionalis, Maclurina septentrionalis Wilson, 1938 † - syn of: Maclurites borealis D. Wilson, 1938 † - (MACLURITIDAE) (FOSSIL)
- septentrionalis, Maclurites septentrionalis Wilson, 1931 † - syn of: Maclurites borealis D. Wilson, 1938 † - (MACLURITIDAE) (FOSSIL)
- septentrionalis, Margarites septentrionalis Smith, 1927 † - (MARGARITIDAE) (FOSSIL)
- septentrionalis, Humboldtites septentrionalis (Smith, 1914 †) - (MEGAPHYLLITIDAE) (FOSSIL)
- septentrionalis, Juvenites septentrionalis Smith, 1932 † - (MELAGATHICERATIDAE) (FOSSIL)
- septentrionalis, Palaospeum septentrionalis (E. Rolán & M.A. Ramos, 1995) - (MOITESSIERIIDAE)
- septentrionalis, Purpura septentrionalis L.A. Reeve, 1846 - syn of: Nucella lamellosa (J.F. Gmelin, 1791) - (MURICIDAE)
- septentrionalis, Mytilus septentrionalis S. Clessin, 1887 - syn of: Mytilus trossulus Gould, 1850 - (MYTILIDAE)
- septentrionalis, Cryptonatica septentrionalis H.P.C. Møller, 1842 - syn of: Cryptonatica affinis (J.F. Gmelin, 1791) - (NATICIDAE)
- septentrionalis, Natica septentrionalis H.P.C. Møller, 1842 - syn of: Cryptonatica affinis (J.F. Gmelin, 1791) - (NATICIDAE)
- septentrionalis, Adalaria septentrionalis I.S. Roginskaya, 1971 - syn of: Onchidoris tschuktschica (A. Krause, 1885) - (ONCHIDORIDIDAE)
- septentrionalis, Liguus fasciatus septentrionalis H.A. Pilsbry, 1912 - (ORTHALICIDAE)
- septentrionalis, Oxychilus septentrionalis J.R. Bourguignat, 1870 - syn of: Oxychilus draparnaudi (H.H. Beck, 1837) - (OXYCHILIDAE)
- septentrionalis, Odostomia septentrionalis W.H. Dall & P. Bartsch, 1909 - (PYRAMIDELLIDAE)
- septentrionalis, Raphitoma septentrionalis É.A.A. Locard, 1892 - syn of: Raphitoma echinata (G.B. Brocchi, 1814) - (RAPHITOMIDAE)
- septentrionalis, Calyptraphorus septentrionalis Stanton, 1920 † - (ROSTELLARIIDAE) (FOSSIL)
- septentrionalis, Fenella septentrionalis S. Tokunaga † - syn of: Obtortio septentrionalis (S. Tokunaga †) - (SCALIOLIDAE) (FOSSIL)
- septentrionalis, Potamopyrgus septentrionalis O. Böttger - syn of: Potamopyrgus antipodarum (J.E. Gray, 1843) - (TATEIDAE)
- septentrionalis, Thracia septentrionalis J.G. Jeffreys, 1872 - (THRACIIDAE)
- septentrionalis, Eratoena septentrionalis (C.N. Cate, 1977) - (TRIVIIDAE)
- septentrionalis, Unio septentrionalis J.R. Bourguignat, 1882 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- septentrionalis, Aegopis septentrionalis (W. Kobelt, 1899) - (ZONITIDAE)
- septentrionalis laughofferi, Aegopis septentrionalis laughofferi A.J. Wagner, 1914 - (ZONITIDAE)
- Septentrioploma, syn of: Genus Periploma H.C.F. Schumacher, 1817 (PERIPLOMATIDAE)
- septenvillei, Bela septenvillei P. Dautzenberg & P. Durouchoux, 1913 - syn of: Bela nebula (G. Montagu, 1803) - (MANGELIIDAE)
- septeuilensis, Crassispira furcata septeuilensis M.E.A. de Boury, 1899 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- Septeuilia, Genus Septeuilia A.E.M. Cossmann, 1913 (SEMELIDAE)
- septicarinatum, Strigoceras septicarinatum (Buckman, 1924 †) - (STRIGOCERATIDAE) (FOSSIL)
- septicarinatus, Strigites septicarinatus S.S. Buckman, 1924 † - (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- septicostatus, Cadomites septicostatus Buckman † - (STEPHANOCERATIDAE) (FOSSIL)
- septicurvatum, Ellinoceras septicurvatum Balaschov, 1960 † - (ACTINOCERATIDAE) (FOSSIL)
- septicurvatum, Hadoceras septicurvatum (E. Strand, 1932 †) - (JOVELLANIIDAE) (FOSSIL)
- septifer, Liebea septifer (King, 1844 †) - (MYALINIDAE) (FOSSIL)
- Septifer, Genus Septifer C.A. Récluz, 1848 (MYTILIDAE)
- septifer, Mytilus septifer King, 1844 † - syn of: Liebea septifer (King, 1844 †) - (MYTILIDAE) (FOSSIL)
- septifera, Arca septifera Grzybowski, 1899 - syn of: Anadara chiriquiensis bolivari N.E. Weisbord, 1922 - (ARCIDAE)
- SEPTIFERIDAE - syn of Family: MYTILIDAE
- septiferum, Phragmosiphon septiferum Flower, 1956 † - (PROTEROCAMEROCERATIDAE) (FOSSIL)
- septiferus, Eccyliopterus septiferus (A. Schmidt, 1858 †) - (LESUEURILLIDAE) (FOSSIL)
- septiformis, Acmaea septiformis H.H. Suter, 1909 - syn of: Notoacmea subantarctica W.R.B. Oliver, 1926 - (ACMAEIDAE)
- septiformis, Tectura septiformis J.R.C. Quoy & J.P. Gaimard, 1834 - syn of: Notoacmea subantarctica W.R.B. Oliver, 1926 - (LOTTIIDAE)
- septifraga, Gazameda septifraga (R. Tate, 1893 †) - (TURRITELLIDAE) (FOSSIL)
- Septihoernesia, Genus Septihoernesia Cox, 1964 † (PTERIIDA (UNASSIGNED)) (FOSSIL)
- Septilumen, Genus Septilumen H.A. Pilsbry & E.G. Vanatta, 1898 (UROCOPTIDAE)
- septima, Carinigera septima R.A.M. Brandt, 1962 - (CLAUSILIIDAE)
- septima, Paziella septima E.H. Vokes, 1970 † - (MURICIDAE) (FOSSIL)
- Septimaniceras, Genus Septimaniceras Fauré, 2002 † (DACTYLIOCERATIDAE) (FOSSIL)
- septimus, Margistrombus septimus (P.L. Duclos, 1844) - (STROMBIDAE)
- septimus, Strombus septimus P.L. Duclos, 1844 - syn of: Margistrombus septimus (P.L. Duclos, 1844) - (STROMBIDAE)
- Septimyalina, Genus Septimyalina Newell, 1942 † (MYALINIDAE) (FOSSIL)
- Septiola, Genus Septiola Bittner, 1895 (MYTILIDA (UNASSIGNED)) (FOSSIL)
- Septipellis, Genus Septipellis H.A. Pilsbry, 1926 (HELMINTHOGLYPTIDAE)
- Septocardia, Genus Septocardia Hall, 1877 † (CARDIIDAE) (FOSSIL)
- septocurvatum, Phreatoceras septocurvatum (E. Strand, 1934 †) - (HYDROBIIDAE) (FOSSIL)
- septocurvatum, Hadoceras septocurvatum E. Strand , 1934 † - (JOVELLANIIDAE) (FOSSIL)
- septuagenarium, Hedecardium septuagenarium (R. Tate, 1887 †) - (CARDIIDAE) (FOSSIL)
- septulifer, Septifer septulifer K.T. Menke, 1830 - syn of: Septifer bilocularis (C. Linnaeus, 1758) - (MYTILIDAE)
- septus, Nodulotrophon septus (R.B. Watson, 1882) - (MURICIDAE)
- sepulchralis, Ampelita sepulchralis (A.E.J. Férussac, 1822) - (ACAVIDAE)
- sepulchralis, Bulimulus sepulchralis F. Poey, 1850 - (BULIMULIDAE)
- sepulchralis, Priotrochus sepulchralis J.C. Melvill, 1899 - syn of: Priotrochus obscurus (W. Wood, 1828) - (TROCHIDAE)
- sepulchralis alba, Ampelita sepulchralis alba E. Fischer-Piette & Garreau de Loubresse, 1965 - (ACAVIDAE)
- sepulchralis eurychila, Ampelita sepulchralis eurychila J.C.H. Crosse & P.H. Fischer, 1890 - (ACAVIDAE)
- sepulchralis lethifera, Ampelita sepulchralis lethifera (J.C.H. Crosse & P.H. Fischer, 1890) - (ACAVIDAE)
- sepulchralis olivacea, Ampelita sepulchralis olivacea H.A. Pilsbry, 1890 - (ACAVIDAE)
- sepulchralis sganziniana, Ampelita sepulchralis sganziniana J.C.H. Crosse & P.H. Fischer, 1890 - (ACAVIDAE)
- sepulcollis, Crassatella sepulcollis G.F. Harris, 1896 † - syn of: Crassatella aquiana Clark, 1895 † - (CRASSATELLIDAE) (FOSSIL)
- sepulcralis, Limicolaria sepulcralis J.R. Bourguignat, 1889 - (ACHATINIDAE)
- sepulcralis, Bulimulus sepulcralis F. Poey, 1850 - syn of: Bulimulus sepulchralis F. Poey, 1850 - (BULIMULIDAE)
- sepulcralis, Cancellaria sepulcralis B.M. Landau & al., 2012 † - (CANCELLARIIDAE) (FOSSIL)
- sepulcralis, Polygona sepulcralis B.M. Landau & G.J. Vermeij, 2012 † - (FASCIOLARIIDAE) (FOSSIL)
- sepulcralis, Prososthenia sepulcralis (M. von Neumayr, 1875 †) - (HYDROBIIDAE) (FOSSIL)
- Sepulorbis, syn of: Genus Serpulorbis M. Sassi, 1827 (VERMETIDAE)
- sepulta, Amastra humilis sepulta H.A. Pilsbry & C.M. Cooke, 1914 - (AMASTRIDAE)
- sepulta, Turbomaria sepulta (J. Perner, 1903 †) - (PLATYCERATIDAE) (FOSSIL)
- sepulta, Pleurotomaria sepulta J. Perner, 1903 † - syn of: Turbomaria sepulta (J. Perner, 1903 †) - (PLEUROTOMARIIDAE) (FOSSIL)
- sepulta, Asperdaphne sepulta C.F. Laseron, 1954 - (RAPHITOMIDAE)
- sepulturalis, Oliva vidua sepulturalis J.B.P.A. Lamarck, 1811 - (OLIVIDAE)
- sequana, Helvetostrea sequana (Thurmann & Étallon, 1862 †) - (FLEMINGOSTREIDAE) (FOSSIL)
- sequana, Agriopleura sequana Masse & Fenerci-Masse, 2014 † - (RADIOLITIDAE) (FOSSIL)
- Sequania, Genus Sequania Cossmann, 1895 † (OPISTHOBRANCHIA (UNASSIGNED)) (FOSSIL)
- sequanica, Cochlodina sequanica J.R. Bourguignat, 1877 - syn of: Cochlodina laminata (G. Montagu, 1803) - (CLAUSILIIDAE)
- sequanicus, Quadrinervus sequanicus A.E.M. Cossmann† - (APORRHAIDAE) (FOSSIL)
- sequanicus, Unio sequanicus G. Coutagne, 1882 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- sequax, Alcithoe sequax J. Marwick, 1923 † - (VOLUTIDAE) (FOSSIL)
- sequens, Barroisia sequens de Grossouvre, 1894 † - syn of: Harleites nicklesi (Grossouvre, 1894 †) - (COLLIGNONICERATIDAE) (FOSSIL)
- sequens, Guizhouspira sequens (L. Waagen, 1880 †) - (GOSSELETINIDAE) (FOSSIL)
- sequens, Oriostoma sequens J. Perner, 1903 † - (ORIOSTOMATIDAE) (FOSSIL)
- sequens, Pleurotomaria sequens L. Waagen, 1880 † - syn of: Guizhouspira sequens (L. Waagen, 1880 †) - (PLEUROTOMARIIDAE) (FOSSIL)
- sequens, Prionolobus sequens (L. Waagen, 1895 †) - (PROPTYCHITIDAE) (FOSSIL)
- sequiniana, Bradybaena sequiniana (P.M. Heude, 1885) - (BRADYBAENIDAE)
- sequoia, Helminthoglypta tularensis sequoia H.A. Pilsbry, 1928 - (HELMINTHOGLYPTIDAE)
- sequoicola, Helminthoglypta sequoicola (J.G. Cooper, 1866) - (HELMINTHOGLYPTIDAE)
- sequoyahense, Reticycloceras sequoyahense (Snider, 1915 †) - (SPYROCERATIDAE) (FOSSIL)
- ser, Serina ser P.V. Gredler, 1898 - (ENIDAE)
- ser egressus, Serina ser egressus (R. Sturany, 1900) - (ENIDAE)
- sera, Aporrhais sera (Steininger, 1963 †) - (APORRHAIDAE) (FOSSIL)
- sera, Myrtea sera J. Marwick, 1965 † - (LUCINIDAE) (FOSSIL)
- sera, Palaeoneilo sera Girty, 1910 † - (MALLETIIDAE) (FOSSIL)
- sera, Murchisonia sera Böhm, 1895 † - (MURCHISONIIDAE) (FOSSIL)
- seradens, Paravitrea seradens L.R. Hubricht, 1972 - (ZONITIDAE)
- serae, Diodora serae J. Espinosa & J.A. Ortea, 2011 - (FISSURELLIDAE)
- serana, Rissoina serana P.J. Fischer, 1927 † - (RISSOINIDAE) (FOSSIL)
- serana, Costatophora serana (P.J. Fischer, 1927) - (TRIPHORIDAE)
- seranetuis, Molukkana seranetuis Krumbneck, 1923 † - (PHOLADOMYOIDEA (UNASSIGNED)) (FOSSIL)
- Serania, Genus Serania Krumbeck, 1923 † (LIMIDAE) (FOSSIL)
- seranonis, Silesites seranonis (A.V.M.D. D'Orbigny, 1841 †) - (SILESITIDAE) (FOSSIL)
- seranus, Phos seranus H. Fischer in J. Wanner, 1927 - (NASSARIIDAE)
- seraperta, Barbatia seraperta G.F. Harris, 1946 † - (ARCIDAE) (FOSSIL)
- seraphina, Oenopota seraphina R.M.A. Figueira & R.S. Absalão, 2010 - (MANGELIIDAE)
- seraphinae, Pollia seraphinae O. Böttger, 1901 † - syn of: Ergalatax seraphinae (O. Böttger, 1901 †) - (BUCCINIDAE) (FOSSIL)
- seraphinae, Ergalatax seraphinae (O. Böttger, 1901 †) - (MURICIDAE) (FOSSIL)
- seraphinica, Camaena seraphinica P.M. Heude, 1890 - (CAMAENIDAE)
- Seraphs, Genus Seraphs P.D. Montfort, 1810 † (SERAPHSIDAE) (FOSSIL)
- SERAPHSIDAE Gray, 1853 - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-LITTORINIMORPHA [Order]-STROMBOIDEA [Superfamily])
- serarnaensis, Atlasica atlasica serarnaensis (P.M. Pallary, 1904) - (HELICIDAE)
- Seratisolen, syn of: Genus Pharus W.E. Leach in T. Brown, 1844 (PHARIDAE)
- serbiana, Pseudalinda golesnicensis serbiana F.W. Welter-Schultes, 2012 - (CLAUSILIIDAE)
- serbica, Agardhiella serbica P. Subai, 2011 - (ARGNIDAE)
- serbica, Chondrina spelta serbica H. Nordsieck, 1970 - (CHONDRINIDAE)
- serbica, Bulgarica serbica (O.F. von Möllendorff, 1873) - (CLAUSILIIDAE)
- Serbica, syn of: Genus Macedonica O. Böttger, 1877 (CLAUSILIIDAE)
- serbica, Helix serbica W. Kobelt, 1906 - syn of: Helix pomatia C. Linnaeus, 1758 - (HELICIDAE)
- serbica, Prososthenia serbica Š. Brusina, 1893 † - (HYDROBIIDAE) (FOSSIL)
- serbica, Grossuana serbica P. Radoman, 1973 - (HYDROBIIDAE)
- serbica, Belgrandiella serbica P. Glöer, 2008 - (HYDROBIIDAE)
- serbica, Semifruticicola costulata serbica A.J. Wagner, 1914 - (HYGROMIIDAE)
- serbica, Melanopsis serbica Š. Brusina, 1893 † - (MELANOPSIDAE) (FOSSIL)
- serbica, Paladilhiopsis serbica (P.S. Pavlovic, 1913) - (MOITESSIERIIDAE)
- serbica, Mediterranea serbica (F. Riedel, 1969) - (OXYCHILIDAE)
- serbica, Holandriana serbica (Živkovic, 1893 †) - (PLEUROCERIDAE) (FOSSIL)
- serbica, Melania serbica Živkovic, 1893 † - syn of: Holandriana serbica (Živkovic, 1893 †) - (THIARIDAE) (FOSSIL)
- serbica, Anodonta serbica J.R. Bourguignat, 1881 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- serbica banjana, Bulgarica serbica banjana H. Nordsieck, 1973 - syn of: Bulgarica moellendorffi banjana (H. Nordsieck, 1973) - (CLAUSILIIDAE)
- serbica rambouseki, Bulgarica serbica rambouseki (Z. Frankenberger, 1913) - (CLAUSILIIDAE)
- serbicus, Proshumardites serbicus Kullmann, 1962 † - syn of: Pericleites uralicus Librovitch, 1941 † - (AGATHICERATIDAE) (FOSSIL)
- serbicus, Entogonites serbicus W. Korn & Sudar, 2016 † - (ENTOGONITIDAE) (FOSSIL)
- serbicus, Milax serbicus H. Wagner, 1931 - (MILACIDAE)
- serbicus, Ancylus serbicus Š. Brusina, 1893 † - (PLANORBIDAE) (FOSSIL)
- serbicus, Neoradiolites serbicus Milovanovic 1935 † - (RADIOLITIDAE) (FOSSIL)
- serbiensis, Torcapella serbiensis Vašícek & al., 2013 † - (BARREMITIDAE) (FOSSIL)
- serborientalis, Bythinella serborientalis P. Radoman, 1978 - (BYTHINELLIDAE)
- serca, Elysia serca Er. Marcus, 1955 - (PLAKOBRANCHIDAE)
- serchensis, Melanopsis serchensis E. Vidal, 1874 † - (MELANOPSIDAE) (FOSSIL)
- serdobowae, Aviculopecten serdobowae (Fredericks, 1915 †) - (AVICULOPECTINIDAE) (FOSSIL)
- serdobowae, Pterinopecten serdobowae Fredericks, 1915 † - syn of: Aviculopecten serdobowae (Fredericks, 1915 †) - (PTERINOPECTINIDAE) (FOSSIL)
- serebrjannikovae, Ninella serebrjannikovae Missarzhevsky & Mambetov, 1981 † - (TURBINIDAE) (FOSSIL)
- seredibensis, Cylichna seredibensis (H.B. Preston, 1905) - (CYLICHNIDAE)
- serempakensis, Diplommatina serempakensis J.J. Vermeulen, 1993 - (DIPLOMMATINIDAE)
- serena, Achatina serena W.H. Benson, 1856 - syn of: Glessula serena (W.H. Benson, 1856) - (ACHATINIDAE)
- serena, Glessula serena (W.H. Benson, 1856) - (SUBULINIDAE)
- serena, Trochomorpha serena (J.C. Cox, 1873) - (TROCHOMORPHIDAE)
- serenae, Aegires serenae (T.M. Gosliner & D.W. Behrens, 1997) - (AEGIRIDAE)
- serenae, Synthopsis serenae A. Cecalupo & I. Perugia, 2012 - (CERITHIOPSIDAE)
- serenae, Opisthoporus serenae J.J. Vermeulen & D.J. Junau, 2007 - (CYCLOPHORIDAE)
- serenei, Phyllidia serenei J.J. Risbec, 1956 - syn of: Phyllidiella nigra (J.C. van Hasselt, 1824) - (PHYLLIDIIDAE)
- serenei, Phyllidiella serenei J.J. Risbec, 1956 - syn of: Phyllidiella nigra (J.C. van Hasselt, 1824) - (PHYLLIDIIDAE)
- serenei, Megastomia serenei (E. Saurin, 1959) - (PYRAMIDELLIDAE)
- Serenia, syn of: Subgenus Paludomus (Tanalia) J.E. Gray, 1847 (PALUDOMIDAE)
- serenitas, Berthella serenitas R.F. Burn, 1962 - (PLEUROBRANCHIDAE)
- serenum, Bittium serenum R.C. Hoerle, 1972 † - (CERITHIIDAE) (FOSSIL)
- serenum, Kionoceras serenum Shimanskiy, 1954 † - (KIONOCERATIDAE) (FOSSIL)
- serenus, Drymaeus serenus R.A. Philippi, 1867 - (BULIMULIDAE)
- serenus, Helicarion serenus H.A. Pilsbry & Y. Hirase, 1908 - (HELICARIONIDAE)
- serepoki, Vietricula serepoki N.T. Dang & T.H. Ho, 2010 - (POMATIOPSIDAE)
- sererorum, Ischnochiton sererorum (A. de Rochebrune, 1881) - (ISCHNOCHITONIDAE)
- sererorum, Leptochiton sererorum A. de Rochebrune, 1881 - syn of: Ischnochiton sererorum (A. de Rochebrune, 1881) - (LEPTOCHITONIDAE)
- seresitense, Hypophylloceras seresitense (Pervinquiére, 1907 †) - (PHYLLOCERATIDAE) (FOSSIL)
- seresitense boulei, Hypophylloceras seresitense boulei M. Collignon, 1928 † - (PHYLLOCERATIDAE) (FOSSIL)
- seresitense vohipalense, Hypophylloceras seresitense vohipalense M. Collignon, 1962 † - (PHYLLOCERATIDAE) (FOSSIL)
- seretense, Dnestroceras seretense Balaschov, 1968 † - syn of: Dnestroceras podolicum (Siemiradzki, 1906 †) - (PSEUDORTHOCERATIDAE) (FOSSIL)
- Seretites, Genus Seretites Lyashenko, 1969 † (TENTACULITIDAE) (FOSSIL)
- serga, Kurtziella serga (W.H. Dall, 1881) - (MANGELIIDAE)
- serga, Pleurotoma serga W.H. Dall, 1881 - syn of: Kurtziella serga (W.H. Dall, 1881) - (TURRIDAE)
- serga elongata, Kurtziella serga elongata (W.H. Dall, 1881) - (MANGELIIDAE)
- serga elongata, Mangelia serga elongata É.A.A. Locard, 1897 - syn of: Kurtziella serga (W.H. Dall, 1881) - (MANGELIIDAE)
- sergeevi, Kelliella sergeevi Z.A. Filatova, 1971 - syn of: Vesicomya sergeevi (Z.A. Filatova, 1971) - (KELLIELLIDAE)
- sergeevi, Vesicomya sergeevi (Z.A. Filatova, 1971) - (VESICOMYIDAE)
- sergei, Parthenina sergei (I. Nofroni & C.F.C. Schander, 1994) - (PYRAMIDELLIDAE)
- sergentum, Cerithium sergentum F.P. Jousseaume, 1931 - syn of: Cerithium stigmosum A.A. Gould, 1861 - (CERITHIIDAE)
- sergii, Pyrgula sergii Š. Brusina, 1902 † - (HYDROBIIDAE) (FOSSIL)
- sergioi, Marginella sergioi L. Bozzetti, 1997 - (MARGINELLIDAE)
- sergipana, Ceratia sergipana Lima, Júnior, Guimarães & Dominguez, 2016 - (IRAVADIIDAE)
- sergipensis, Trochactaeon sergipensis C.J. Maury, 1936 † - (ACTEONELLIDAE) (FOSSIL)
- sergipensis, Anomia sergipensis C.J. Maury, 1936 † - (ANOMIIDAE) (FOSSIL)
- sergipensis, Astarte sergipensis C.J. Maury, 1936 † - (ASTARTIDAE) (FOSSIL)
- sergipensis, Mortoniceras sergipensis (White 1887 †) - (BRANCOCERATIDAE) (FOSSIL)
- sergipensis, Exogyra sergipensis C.J. Maury, 1936 † - (GRYPHAEIDAE) (FOSSIL)
- sergipensis, Gervillia sergipensis Mello & al., 2007 † - (MYALINIDAE) (FOSSIL)
- sergipensis, Euspira sergipensis C.J. Maury, 1936 † - (NATICIDAE) (FOSSIL)
- sergipensis, Neithea sergipensis White, 1887 † - (PECTINIDAE) (FOSSIL)
- sergipensis, Liopistha sergipensis White, 1887 † - (POROMYIDAE) (FOSSIL)
- sergipensis, Tylostoma sergipensis C.J. Maury, 1936 † - (TYLOSTOMATIDAE) (FOSSIL)
- Sergipia, Genus Sergipia Maury, 1925 † (INOCERAMIDAE) (FOSSIL)
- sergipica, Mantellum sergipica C.J. Maury, 1936 † - (LIMIDAE) (FOSSIL)
- seri, Sonorella seri E. Naranjo-Garcia, 1988 - (HELMINTHOGLYPTIDAE)
- seriaformis, Tuba seriaformis (F. Schröder, 1995 †) - (MATHILDIDAE) (FOSSIL)
- serialis, Littorina serialis J.F.T. Eydoux & L.F.A. Souleyet, 1852 - (LITTORINIDAE)
- serianus, Trigonodus serianus (C.F. Parona, 1889 †) - (PACHYCARDIIDAE) (FOSSIL)
- seriata, Phyllidiella seriata A. Pruvot-Fol, 1957 - syn of: Phyllidiella zeylanica (E.F. Kelaart, 1859) - (PHYLLIDIIDAE)
- seriatimgranulata, Turritella seriatimgranulata F.A. Roemer, 1849 † - (TURRITELLIDAE) (FOSSIL)
- seriatimgranulata gainesvillensis, Turritella seriatimgranulata gainesvillensis Stanton, 1947 † - (TURRITELLIDAE) (FOSSIL)
- seriatimgranulata planilateris, Turritella seriatimgranulata planilateris T.A. Conrad, 1857 † - syn of: Turritella irrorata T.A. Conrad, 1855 † - (TURRITELLIDAE) (FOSSIL)
- seriatimgranulata ventrivoluta, Turritella seriatimgranulata ventrivoluta Cragin, 1893 † - syn of: Turritella ventrivoluta (Cragin, 1893 †) - (TURRITELLIDAE) (FOSSIL)
- seriatus, Fusinus seriatus Callomon & Snyder, 2017 - (FASCIOLARIIDAE)
- seriatus, Trochus seriatus J.K. Megerle Von Mühlfeld, 1824 - syn of: Monophorus perversus (C. Linnaeus, 1758) - (TROCHIDAE)
- serica, Parakaliella serica (H.A. Pilsbry, 1927) - (HELICARIONIDAE)
- serica, Crenella serica T.A. Conrad, 1860 † - (MYTILIDAE) (FOSSIL)
- serica, Arcoperna serica (H.G. Bronn, 1831 †) - (MYTILIDAE) (FOSSIL)
- serica, Chersaecia serica (H.H. Godwin-Austen, 1875) - (PLECTOPYLIDAE)
- serica, Tellina serica T.A. Conrad, 1848 † - (TELLINIDAE) (FOSSIL)
- serica, Yoldia serica T.A. Conrad, 1848 † - (YOLDIIDAE) (FOSSIL)
- sericans, Philonesia sericans (C.M.F. Ancey, 1899) - (EUCONULIDAE)
- sericata, Satsuma paiwans sericata J.T. Kuroda, 1941 - (CAMAENIDAE)
- Sericata, Subgenus Albinaria (Sericata) O. Böttger, 1878 (CLAUSILIIDAE)
- sericata, Sericata sericata (L. Pfeiffer, 1849) - (CLAUSILIIDAE)
- Sericata, syn of: Genus Isabellaria W. von Vest, 1867 (CLAUSILIIDAE)
- sericata, Tucetona sericata (L.A. Reeve, 1843) - (GLYCYMERIDIDAE)
- sericata, Glycymeris sericata L.A. Reeve, 1843 - syn of: Tucetona sericata (L.A. Reeve, 1843) - (GLYCYMERIDIDAE)
- sericata, Halolimnohelix sericata H.A. Pilsbry - (HALOLIMNOHELICIDAE)
- sericata, Lucina sericata L.A. Reeve, 1850 - syn of: Diplodonta sericata (L.A. Reeve, 1850) - (LUCINIDAE)
- sericata, Callogaza sericata (T. Kira, 1959) - (MARGARITIDAE)
- sericata, Gaza sericata T. Kira, 1959 - syn of: Callogaza sericata (T. Kira, 1959) - (MARGARITIDAE)
- sericata, Paralaoma sericata (H.H. Suter, 1890) - (PUNCTIDAE)
- sericata, Solariella sericata J.T. Kuroda & T. Kinoshita, 1956 - (SOLARIELLIDAE)
- sericata, Tellina sericata (J.C. Melvill, 1898) - (TELLINIDAE)
- sericata, Angulus sericata J.C. Melvill, 1898 - syn of: Tellina sericata (J.C. Melvill, 1898) - (TELLINIDAE)
- sericata, Diplodonta sericata (L.A. Reeve, 1850) - (UNGULINIDAE)
- sericata, Negulus sericata C.M. Cooke & H.A. Pilsbry, 1920 - (VERTIGINIDAE)
- sericata, Ericusa sericata G. Thornley, 1951 - (VOLUTIDAE)
- sericata, Hyalinia sericata W.A. Lindholm, 1922 - syn of: Oxychilus sucinacius (O. Böttger, 1883) - (ZONITIDAE)
- sericata depressa, Halolimnohelix sericata depressa B. Verdcourt - (HALOLIMNOHELICIDAE)
- sericata lejeunei, Halolimnohelix sericata lejeunei B. Verdcourt - (HALOLIMNOHELICIDAE)
- sericatula, Elsothera sericatula (L. Pfeiffer, 1849) - (CHAROPIDAE)
- sericatum, Buccinum ciliatum sericatum A. Hancock, 1846 - (BUCCINIDAE)
- sericatum, Leptopoma sericatum L. Pfeiffer, 1851 - (CYCLOPHORIDAE)
- sericatum, Dentalium sericatum W.H. Dall, 1881 - syn of: Graptacme semistriata (W. Turton, 1819) - (DENTALIIDAE)
- sericatum, Mericoceras sericatum (Barrande, 1868 †) - (MICHELINOCERATIDAE) (FOSSIL)
- sericatum, Orthoceras sericatum Barrande, 1868 † - (ORTHOCERATIDAE) (FOSSIL)
- sericea, Achatinella sericea L. Pfeiffer - syn of: Amastra sericea L. Pfeiffer, 1859 - (ACHATINELLIDAE)
- sericea, Amastra sericea L. Pfeiffer, 1859 - (AMASTRIDAE)
- sericea, Astarte sericea H.J. Posselt, 1895 - (ASTARTIDAE)
- sericea, Trigonostoma sericea (W.H. Dall, 1892 †) - (CANCELLARIIDAE) (FOSSIL)
- sericea, Euphaedusa sericea Hunyadi & Szekeres, 2016 - (CLAUSILIIDAE)
- sericea, Zemitrella sericea A.W.B. Powell, 1937 - (COLUMBELLIDAE)
- sericea, Caryocorbula sericea W.H. Dall, 1898 † - (CORBULIDAE) (FOSSIL)
- sericea, Allorisma sericea C. Gemmellaro, 1896 † - syn of: Wilkingia sericea (C. Gemmellaro, 1896 †) - (EDMONDIIDAE) (FOSSIL)
- Sericea, syn of: Genus Alcadia J.E. Gray, 1840 (HELICINIDAE)
- sericea, Trichia sericea (J.P.R. Draparnaud, 1801) - (HYGROMIIDAE)
- sericea, Trichia sericea O.F. Müller, 1774 - syn of: Petasina unidentata (J.P.R. Draparnaud, 1805) - (HYGROMIIDAE)
- sericea, Mactra sericea L.A. Reeve, 1854 - (MACTRIDAE)
- sericea, Mactra sericea Š. Brusina, 1865 - syn of: Mactra glauca I. von Born, 1778 - (MACTRIDAE)
- sericea, Montacuta sericea R. Tate, 1887 † - (MONTACUTIDAE) (FOSSIL)
- sericea, Ebala sericea (L. de Folin & J.P.L. Périer, 1868) - (MURCHISONELLIDAE)
- sericea, Neilonella sericea J.G. Jeffreys, 1876 - syn of: Tindaria sericea (J.G. Jeffreys, 1876) - (NEILONELLIDAE)
- sericea, Leda sericea J.G. Jeffreys, 1876 - syn of: Tindaria sericea (J.G. Jeffreys, 1876) - (NUCULANIDAE)
- sericea, Nucula sericea K.H.J. Thiele & S.G.A. Jaeckel, 1931 - (NUCULIDAE)
- sericea, Eccliseogyra sericea P. Bouchet & A. Warén, 1986 - (NYSTIELLIDAE)
- sericea, Oliva sericea (P.F. Röding, 1798) - (OLIVIDAE)
- sericea, Ostrea sericea L.W. Dillwyn, 1817 - syn of: Alectryonella plicatula (J.B.P.A. Lamarck, 1801) - (OSTREIDAE)
- sericea, Alectryonella sericea L.W. Dillwyn, 1817 - syn of: Alectryonella plicatula (J.B.P.A. Lamarck, 1801) - (OSTREIDAE)
- sericea, Tropidophora sericea R.J. Griffiths & D.G. Herbert, 2013 - (POMATIIDAE)
- sericea, Avicula sericea de Verneuil, 1845 † - syn of: Streblochondria sericea (de Verneuil, 1845 †) - (PTERIIDAE) (FOSSIL)
- sericea, Laomarex sericea A.W.B. Powell, 1948 - (PUNCTIDAE)
- sericea, Colsyrnola sericea T. Iredale, 1929 - (PYRAMIDELLIDAE)
- sericea, Turbonilla sericea L. de Folin & J.P.L. Périer, 1868 - syn of: Ebala sericea (L. de Folin & J.P.L. Périer, 1868) - (PYRAMIDELLIDAE)
- sericea, Wilkingia sericea (C. Gemmellaro, 1896 †) - (SANGUINOLITIDAE) (FOSSIL)
- sericea, Streblochondria sericea (de Verneuil, 1845 †) - (STREBLOCHONDRIIDAE) (FOSSIL)
- sericea, Tindaria sericea (J.G. Jeffreys, 1876) - (TINDARIIDAE)
- sericea, Dosinia sericea (L.A. Reeve, 1850) - (VENERIDAE)
- sericea, Yoldia sericea J.G. Jeffreys, 1876 - syn of: Tindaria sericea (J.G. Jeffreys, 1876) - (YOLDIIDAE)
- sericea albina, Oliva sericea albina J.C. Melvill & R. Standen, 1897 - (OLIVIDAE)
- sericea anaglypta, Amastra sericea anaglypta C.M. Cooke, 1917 - (AMASTRIDAE)
- sericea granitella, Oliva sericea granitella J.B.P.A. Lamarck, 1811 - (OLIVIDAE)
- sericea ovata, Leda sericea ovata J.G. Jeffreys, 1876 - syn of: Tindaria sericea (J.G. Jeffreys, 1876) - (NUCULANIDAE)
- sericea sabulosa, Oliva sericea sabulosa F.P. Marrat, 1868 - (OLIVIDAE)
- sericea striolata, Tindaria sericea striolata J.G. Jeffreys, 1876 - (TINDARIIDAE)
- sericea striolata, Yoldia sericea striolata A.E. Verrill, 1884 - syn of: Neilonella salicensis (G. Seguenza, 1877) - (YOLDIIDAE)
- sericea textilina, Oliva sericea textilina J.B.P.A. Lamarck, 1810 - (OLIVIDAE)
- Sericeana, syn of: Genus Trochulus J.D.W. Hartmann 1840 (HYGROMIIDAE)
- sericella, Trochulus sericella G. Servain, 1880 - syn of: Trichia hispida (C. Linnaeus, 1758) - (HYGROMIIDAE)
- sericeum, Saloceras sericeum (Salter, 1866 †) - (EOTHINOCERATIDAE) (FOSSIL)
- sericeum, Orthoceras sericeum Salter, 1866 † - syn of: Saloceras sericeum (Salter, 1866 †) - (ORTHOCERATIDAE) (FOSSIL)
- sericeus, Capulus sericeus J.Q. Burch & R.L. Burch, 1961 - (CAPULIDAE)
- sericeus, Obliquipecten sericeus de Verneuil, 1845 † - syn of: Streblochondria sericea (de Verneuil, 1845 †) - (CHAENOCARDIIDAE) (FOSSIL)
- sericeus, Antiguraleus sericeus R.N. Kilburn, 1994 - (MANGELIIDAE)
- sericeus, Leopecten sericeus (R.B. Hinds, 1845) - (PECTINIDAE)
- sericeus, Jujubinus sericeus P.M. Pallary, 1904 - syn of: Jujubinus striatus (C. Linnaeus, 1758) - (TROCHIDAE)
- sericeus, Tapes sericeus A. Matsukuma, 1986 - (VENERIDAE)
- sericia, Monacha sericia Macho, 1871 - syn of: Monacha granulata (J. Alder, 1830) - (HYGROMIIDAE)
- sericifila, Epitonium sericifila (W.H. Dall, 1889) - (EPITONIIDAE)
- sericifila, Mangelia sericifila (W.H. Dall, 1927) - (MANGELIIDAE)
- sericifila, Pleurotomella sericifila W.H. Dall, 1927 - syn of: Pleurotomella bureaui (P. Dautzenberg & H. Fischer, 1897) - (RAPHITOMIDAE)
- sericifila, Solariella sericifila W.H. Dall, 1889 - (SOLARIELLIDAE)
- sericifila strongyla, Mangelia sericifila strongyla W.H. Dall, 1927 - syn of: Mangelia strongyla (W.H. Dall, 1927) - (MANGELIIDAE)
- sericifilum, Calliostoma sericifilum W.H. Dall, 1889 - syn of: Dentistyla sericifilum (W.H. Dall, 1889) - (CALLIOSTOMATIDAE)
- sericifilum, Dentistyla sericifilum (W.H. Dall, 1889) - (CHILODONTIDAE)
- sericina, Mundophaedusa sericina (O.F. von Möllendorff, 1882) - (CLAUSILIIDAE)
- sericina, Serriphaedusa serrata sericina H. Nordsieck, 2016 - (CLAUSILIIDAE)
- sericina, Parachondria sericina (C.B. Adams, 1851) - (POMATIIDAE)
- sericina, Plagyrona sericina R.T. Lowe, 1855 - syn of: Plagyrona placida (R.J. Shuttleworth, 1852) - (VALLONIIDAE)
- sericina retreatensis, Parachondria sericina retreatensis (H.B. Baker, 1934) - (POMATIIDAE)
- sericinus, Cyclophorus sericinus J.F. Quadras & O.F. von Möllendorff, 1894 - (CYCLOPHORIDAE)
- sericinus, Phasianotrochus sericinus (K.H.J. Thiele, 1930) - (TROCHIDAE)
- Sericipupa, Subgenus Negulus (Sericipupa) H.A. Pilsbry & C.M. Cooke, 1920 (VERTIGINIDAE)
- sericogazea, Amaea sericogazea (H. Masahito, J.T. Kuroda & T. Habe, 1971) - (EPITONIIDAE)
- Sericogyra, Genus Sericogyra B.A. Marshall, 1988 (SEGUENZIIDAE)
- Sericohaminoea, Genus Sericohaminoea T. Habe, 1952 (HAMINOEIDAE)
- Sericominolia, Genus Sericominolia J.T. Kuroda & T. Habe, 1954 (TROCHIDAE)
- Serigea, syn of: Genus Aegires S.L. Lovén, 1844 (AEGIRIDAE)
- seriliola, Heterocithara seriliola C. Hedley, 1922 - (MANGELIIDAE)
- serilla, Anticlinura serilla (W.H. Dall, 1908) - (MANGELIIDAE)
- serilla, Odostomia serilla W.H. Dall & P. Bartsch, 1909 - (PYRAMIDELLIDAE)
- serina, Cerithiopsis serina W.H. Dall, 1927 - (CERITHIOPSIDAE)
- Serina, Genus Serina P.V. Gredler, 1898 (ENIDAE)
- serina, Helicina serina H.B. Preston, 1914 - (HELICINIDAE)
- seringei, Ancyloceras seringei Astier, 1851 † - syn of: Megacrioceras seringei (Astier, 1851 †) - (ANCYLOCERATIDAE) (FOSSIL)
- seringei, Megacrioceras seringei (Astier, 1851 †) - (MEGACRIOCERATIDAE) (FOSSIL)
- seringei multicostatum, Megacrioceras seringei multicostatum (Sarkar, 1955 †) - (MEGACRIOCERATIDAE) (FOSSIL)
- seriola, Medora contracta seriola (C.A. Westerlund, 1884) - (CLAUSILIIDAE)
- seriopunctatum, Calliostoma seriopunctatum H.M.D. de Blainville, 1830 - syn of: Calliostoma laugieri seriopunctatus (H.M.D. de Blainville, 1830) - (CALLIOSTOMATIDAE)
- seriopunctatus, Calliostoma laugieri seriopunctatus (H.M.D. de Blainville, 1830) - (CALLIOSTOMATIDAE)
- seriopunctatus, Trochus seriopunctatus H.M.D. de Blainville, 1830 - syn of: Calliostoma laugieri (B.C.M. Payraudeau, 1826) - (TROCHIDAE)
- seriphium, Deroceras seriphium A. Wiktor & M. Mylonas, 1981 - (AGRIOLIMACIDAE)
- serira, Melanopsis magnifica serira P.M. Pallary, 1920 - (MELANOPSIDAE)
- serlense, Sinumelon fodinale serlense T. Iredale, 1937 - (CAMAENIDAE)
- sermenazensis, Bithynia sermenazensis Depéret, 1894 † - (BITHYNIIDAE) (FOSSIL)
- Sermyla, Subgenus Thiara (Sermyla) H. Adams & A. Adams, 1853 (THIARIDAE)
- Sermylasma, syn of: Subgenus Thiara (Sermyla) H. Adams & A. Adams, 1853 (THIARIDAE)
- serocorona, Plocezyga serocorona Batten, 1985 † - (PSEUDOZYGOPLEURIDAE) (FOSSIL)
- seroplicatum, Calliphylloceras seroplicatum (J. Von Hauer, 1854 †) - (PHYLLOCERATIDAE) (FOSSIL)
- Serostena, Genus Serostena Iredale, 1941 (EUCONULIDAE)
- serotina, Aeolidia serotina L.S.R. Bergh, 1873 - syn of: Aeolidia papillosa (C. Linnaeus, 1761) - (AEOLIDIIDAE)
- serotina, Cymaclymenia serotina W. Korn, 2014 † - (CYMACLYMENIIDAE) (FOSSIL)
- serotina, Gastrocopta serotina Ložek, 1964 † - (GASTROCOPTIDAE) (FOSSIL)
- serotina, Helix serotina A. Adams - syn of: Bradybaena weyrichii L. von Schrenck, 1867 - (HELICIDAE)
- serotina, Strigatella serotina A. Adams, 1853 - syn of: Strigatella pellisserpentis L.A. Reeve, 1844 - (MITRIDAE)
- serotina, Orania serotina (A. Adams, 1853) - (MURICIDAE)
- serotina, Nassa serotina A. Adams, 1852 - syn of: Nassarius capensis (R.W. Dunker, 1846) - (NASSARIIDAE)
- serotina, Nucula serotina R.B. Hinds, 1843 - syn of: Orthoyoldia serotina (R.B. Hinds, 1843) - (NUCULIDAE)
- serotina, Psammotaea serotina J.B.P.A. Lamarck, 1818 - syn of: Gari elongata (J.B.P.A. Lamarck, 1818) - (PSAMMOBIIDAE)
- serotina, Marshallaria serotina (H.H. Suter, 1917 †) - (PTYCHATRACTIDAE) (FOSSIL)
- serotina, Tibersyrnola serotina (A. Adams, 1863) - (PYRAMIDELLIDAE)
- serotina, Terebra serotina A. Adams & L.A. Reeve, 1850 - syn of: Cinguloterebra anilis (P.F. Röding, 1798) - (TEREBRIDAE)
- serotina, Orthoyoldia serotina (R.B. Hinds, 1843) - (YOLDIIDAE)
- serotina, Yoldia serotina R.B. Hinds, 1843 - syn of: Orthoyoldia serotina (R.B. Hinds, 1843) - (YOLDIIDAE)
- serotinum, Cerithium serotinum A. Adams, 1855 - syn of: Ataxocerithium serotinum (Adams, 1855) - (CERITHIIDAE)
- serotinum, Lioceratoides serotinum (E. Bettoni, 1900 †) - (HILDOCERATIDAE) (FOSSIL)
- serotinum, Protogrammoceras serotinum (E. Bettoni, 1900 †) - (HILDOCERATIDAE) (FOSSIL)
- serotinum, Myloceras serotinum (Spath, 1925 †) - (LABECERATIDAE) (FOSSIL)
- serotinum, Ataxocerithium serotinum (Adams, 1855) - (NEWTONIELLIDAE)
- serotinum, Styloptygma serotinum A. Adams, 1863 - syn of: Tibersyrnola serotina (A. Adams, 1863) - (PYRAMIDELLIDAE)
- serotinum attenuatum, Myloceras serotinum attenuatum M. Collignon, 1951 † - (LABECERATIDAE) (FOSSIL)
- serotinum ellipticum, Myloceras serotinum ellipticum M. Collignon, 1951 † - (LABECERATIDAE) (FOSSIL)
- serotinum planum, Myloceras serotinum planum Spath, 1925 † - (LABECERATIDAE) (FOSSIL)
- serotinum rugosum, Myloceras serotinum rugosum Spath, 1925 † - (LABECERATIDAE) (FOSSIL)
- serotinus, Thomelites serotinus (Wright & Kennedy, 1981 †) - (ACANTHOCERATIDAE) (FOSSIL)
- serotinus, Bostryx serotinus (P.M.A. Morelet, 1860) - (BULIMULIDAE)
- serotinus, Boesites serotinus Ruzhentsev, 1951 † - (DARAELITIDAE) (FOSSIL)
- serotinus, Cyrtulus serotinus R.B. Hinds, 1843 - (FASCIOLARIIDAE)
- serotinus, Euhoplites serotinus Spath, 1930 † - (HOPLITIDAE) (FOSSIL)
- serotinus, Limax serotinus F. von Schrank, 1848 - syn of: Malacolimax tenellus (O.F. Müller, 1774) - (LIMACIDAE)
- serotinus, Sirenites serotinus Tozer, 1994 † - (TRACHYCERATIDAE) (FOSSIL)
- serotinus subroseus, Bostryx serotinus subroseus R.A. Philippi, 1869 - (BULIMULIDAE)
- serpa, Paraboysidia serpa W.S.S. Van Benthem-Jutting, 1950 - (HYPSELOSTOMATIDAE)
- serpa, Gibbula serpa F. Nordsieck, 1982 - (TROCHIDAE)
- Serpaea, Genus Serpaea Bourguignat, 1889 (ACHATINIDAE)
- Serpaea, syn of: Genus Achatina J.B.P.A. Lamarck, 1799 (ACHATINIDAE)
- serpens, Lacinia alveata serpens Garvie, 2013 † - (BUCCINIDAE) (FOSSIL)
- serpens, Philoxene serpens B. Phillips, 1841 † - syn of: Philoxene laevis (d'Archiac & de Verneuil, 1842 †) - (EUOMPHALIDAE) (FOSSIL)
- serpens, Brilonella serpens (Kayser, 1872 †) - (MURCHISONIIDAE) (FOSSIL)
- serpens, Solaropsis serpens (T. Martyn, 1784) - (PLEURODONTIDAE)
- serpens, Scoliostoma serpens Kayser, 1872 † - syn of: Brilonella serpens (Kayser, 1872 †) - (SCOLIOSTOMATIDAE) (FOSSIL)
- serpenteus, Straparollus serpenteus P.D. Montfort 1810 † - (EUOMPHALIDAE) (FOSSIL)
- serpenteus, Bassotrochus serpenteus (Talent, 1963 †) - (OMPHALOTROCHIDAE) (FOSSIL)
- serpenticola, Taylorconcha serpenticola R. Hershler, 1994 - (HYDROBIIDAE)
- serpenticonus, Bullatimorphites serpenticonus Arkell, 1954 † - (TULITIDAE) (FOSSIL)
- serpentina, Marmorana serpentina (A.E.J. Férussac, 1801) - (HELICIDAE)
- serpentina, Franconiclymenia serpentina (G.G. Münster, 1832 †) - (KOSMOCLYMENIIDAE) (FOSSIL)
- serpentina, Marginella serpentina F.P. Jousseaume, 1875 - syn of: Marginella lussii B. Hayes & V.G. Millard, 1995 - (MARGINELLIDAE)
- serpentina, Mitra serpentina W. Wood, 1825 - syn of: Tiarella puncticulata (J.B.P.A. Lamarck, 1811) - (MITRIDAE)
- serpentina, Scabricola serpentina J.B.P.A. Lamarck, 1811 - syn of: Scabricola variegata (J.F. Gmelin, 1791) - (MITRIDAE)
- serpentina, Prothalotia serpentina (J.R.C. Quoy & J.P. Gaimard, 1859) - (TROCHIDAE)
- serpentina, Anodonta serpentina S. Clessin, 1876 - syn of: Anodontites patagonica J.B.P.A. Lamarck, 1819 - (UNIONIDAE)
- serpentina, Cymbiola serpentina J.B.P.A. Lamarck, 1811 - syn of: Cymbiola vespertilio (C. Linnaeus, 1758) - (VOLUTIDAE)
- serpentina carae, Marmorana serpentina carae (F.J. Cantraine, 1840) - (HELICIDAE)
- serpentina circeja, Marmorana serpentina circeja (W. Kobelt, 1903) - (HELICIDAE)
- serpentina hospitans, Marmorana serpentina hospitans (E.A. Rossmässler, 1836) - (HELICIDAE)
- serpentina isarae, Marmorana serpentina isarae (M. Paulucci, 1882) - (HELICIDAE)
- serpentina isilensis, Marmorana serpentina isilensis (L. Pfeiffer, 1848) - (HELICIDAE)
- serpentina jaspidaea, Marmorana serpentina jaspidaea (A. Moquin-Tandon, 1855) - (HELICIDAE)
- serpentina orites, Marmorana serpentina orites C.A. Westerlund, 1889 - (HELICIDAE)
- serpentinarum, Ambigua fuscolabiata serpentinarum (E. Degner, 1936) - (HELICIDAE)
- serpentiniformis, Hildaites serpentiniformis Buckman, 1921 † - (HILDOCERATIDAE) (FOSSIL)
- serpentinitica, Trachia serpentinitica J.J. Vermeulen, T.S. Liew & M. Schilthuizen, 2015 - (CAMAENIDAE)
- serpentinotus, Acanthodoris serpentinotus J.D. Williams & T.M. Gosliner, 1979 - (ONCHIDORIDIDAE)
- serpentinula, Cavellia serpentinula (H.H. Suter, 1891) - (CHAROPIDAE)
- serpentinula, Charopa serpentinula H.H. Suter, 1891 - syn of: Cavellia serpentinula (H.H. Suter, 1891) - (CHAROPIDAE)
- serpentinum, Hysteroceras serpentinum Spath, 1934 † - (BRANCOCERATIDAE) (FOSSIL)
- serpentinum, Cyrtolites serpentinum Trueman & Williams † - (CYRTOLITIDAE) (FOSSIL)
- serpentinum, Engonoceras serpentinum Cragin, 1900 † - (ENGONOCERATIDAE) (FOSSIL)
- serpentinum, Harpoceras serpentinum (von Schlotheim, 1813 †) - (HILDOCERATIDAE) (FOSSIL)
- serpentinum, Glyptophiceras serpentinum (Spath, 1935 †) - (KASHMIRITIDAE) (FOSSIL)
- serpentinum, Anetoceras serpentinum Ruan, 1981 † - syn of: Ruanites serpentinus (Ruan, 1981 †) - (MIMOSPHINCTIDAE) (FOSSIL)
- serpentinum, Svetlanoceras serpentinum (Maximova, 1948 †) - (PARAGASTRIOCERATIDAE) (FOSSIL)
- serpentinum, Lunupharciceras serpentinum Bockwinkel & al., 2009 † - (PHARCICERATIDAE) (FOSSIL)
- serpentinum alternatus, Harpoceras serpentinum alternatus C.T. Simpson, 1843 † - syn of: Harpoceras serpentinum (von Schlotheim, 1813 †) - (HILDOCERATIDAE) (FOSSIL)
- serpentinus, Ammonites serpentinus von Schlotheim, 1813 † - syn of: Harpoceras serpentinum (von Schlotheim, 1813 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- serpentinus, Bothriembryon serpentinus T. Iredale, 1939 - (BOTHRIEMBRYONTIDAE)
- serpentinus, Tremanotus serpentinus J. Perner, 1903 † - syn of: Boiotremus beraunensis (J. Perner, 1903 †) - (BUCANIIDAE) (FOSSIL)
- serpentinus, Planulites serpentinus G.G. Münster, 1832 † - syn of: Franconiclymenia serpentina (G.G. Münster, 1832 †) - (CLYMENIIDAE) (FOSSIL)
- serpentinus, Deshayesites punfieldensis serpentinus R. Casey 1964 † - (DESHAYESITIDAE) (FOSSIL)
- serpentinus, Goniatites serpentinus B. Phillips, 1836 † - syn of: Prolecanites serpentinus (B. Phillips, 1836 †) - (GONIATITIDAE) (FOSSIL)
- serpentinus, Ruanites serpentinus (Ruan, 1981 †) - (MIMOSPHINCTIDAE) (FOSSIL)
- serpentinus, Prolecanites serpentinus (B. Phillips, 1836 †) - (PROLECANITIDAE) (FOSSIL)
- serpentinus, Leiophyllites serpentinus Chao, 1959 † - (USSURITIDAE) (FOSSIL)
- serpentis, Antiguraleus serpentis (C.F. Laseron, 1954) - (MANGELIIDAE)
- serpentis, Pelagiella serpentis Ermak & Pelman, 1986 † - (PELAGIELLIDAE) (FOSSIL)
- serpentrionalis, Maclurites serpentrionalis E.F.R.K. Koken & J. Perner 1925 † - (MACLURITIDAE) (FOSSIL)
- Serpentubina, Genus Serpentubina Horný, 1964 † (TUBINIDAE) (FOSSIL)
- Serpentulus, syn of: Genus Caracolus P.D. Montfort, 1810 (PLEURODONTIDAE)
- serperastrata, Pareledone serperastrata L. Allcock, 2005 - (OCTOPODIDAE)
- serperastrus, Drymaeus serperastrus (T. Say, 1829) - (BULIMULIDAE)
- serperastus, Drymaeus serperastus T. Say, 1829 - syn of: Drymaeus serperastrus (T. Say, 1829) - (BULIMULIDAE)
- serpesratrum, Drymaeus serpesratrum T. Say, 1829 - syn of: Drymaeus serperastrus (T. Say, 1829) - (BULIMULIDAE)
- serpestes, Aegista serpestes (P.M. Heude, 1890) - (BRADYBAENIDAE)
- Serpho, Subgenus Therasia (Serpho) F.W. Hutton, 1904 (CHAROPIDAE)
- Serpianites, Genus Serpianites Rieber, 1973 † (CERATITIDA (UNASSIGNED)) (FOSSIL)
- serpula, Phanerotinus serpula (de Koninck, 1843 †) - (EUOMPHALIDAE) (FOSSIL)
- serpula, Serpulospira serpula d'Archiac & de Verneuil, 1842 † - (EUOMPHALOIDEA (UNASSIGNED)) (FOSSIL)
- serpula, Lytospira serpula E.F.R.K. Koken, 1897 † - (OPHILETIDAE) (FOSSIL)
- Serpula, syn of: Genus Thylacodes J.É. Guettard, 1770 (VERMETIDAE)
- serpulatus, Rhabdobelus serpulatus F.A. von Quenstedt, 1971 † - syn of: Rhabdobelus avena Dumortier, 1866 † - (HASTITIDAE) (FOSSIL)
- serpuliforme, Mesoturrilites serpuliforme (Coquand, 1862 †) - (TURRILITIDAE) (FOSSIL)
- serpuloides, Helix serpuloides G. Montagu, 1808 - syn of: Skenea serpuloides (G. Montagu, 1808) - (HELICIDAE)
- serpuloides, Skenea serpuloides (G. Montagu, 1808) - (SKENEIDAE)
- serpuloides, Vermicularia serpuloides G.P. Deshayes, 1861 † - (TURRITELLIDAE) (FOSSIL)
- Serpuloides, syn of: Genus Serpulorbis M. Sassi, 1827 (VERMETIDAE)
- Serpulorbis, Genus Serpulorbis M. Sassi, 1827 (VERMETIDAE)
- Serpulospira, Genus Serpulospira Serpulospira † (EUOMPHALOIDEA (UNASSIGNED)) (FOSSIL)
- serra, Lirobittium serra P. Bartsch, 1917 - (CERITHIIDAE)
- serra, Donax serra P.F. Röding, 1798 - (DONACIDAE)
- serra, Donax serra L.W. Dillwyn, 1817 - syn of: Donax serra P.F. Röding, 1798 - (DONACIDAE)
- serra, Eumetadrillia serra W.P. Woodring, 1928 † - (DRILLIIDAE) (FOSSIL)
- serra, Ostrea serra W.H. Dall, 1914 - syn of: Saccostrea palmula (Carpenter, 1857) - (OSTREIDAE)
- serra, Atrina serra (L.A. Reeve, 1858) - (PINNIDAE)
- serra, Cyrtopinna serra K.L. Lamprell & J.M. Healy, 1997 - syn of: Atrina serra (L.A. Reeve, 1858) - (PINNIDAE)
- serra aurantiaca, Donax serra aurantiaca C.F.F. von Krauss, 1848 - (DONACIDAE)
- Serracorbula, Subgenus Corbula (Serracorbula) Olsson, 1961 † (CORBULIDAE) (FOSSIL)
- Serracorbula, syn of: Genus Corbula J.G. Bruguière, 1797 (CORBULIDAE)
- serradifalci, Lobiger serradifalci (P. Calcara, 1840) - (OXYNOIDAE)
- Serradonta, Genus Serradonta T.A. Okutani, E. Tsuchida & K. Fujikura, 1992 (PECTINODONTIDAE)
- serrae, Turbonilla serrae W.H. Dall & P. Bartsch, 1907 - (PYRAMIDELLIDAE)
- Serramanticoceras, Genus Serramanticoceras Becker & al., 1993 † (GEPHUROCERATIDAE) (FOSSIL)
- serrana, Alaba serrana A.G. Smith & W.J. Gordon, 1948 - syn of: Pseudosabinella bakeri (P. Bartsch, 1917) - (LITIOPIDAE)
- serrana, Neritilia serrana Espinosa, Ortea & Diez-García, 2017 - (NERITILIIDAE)
- serrana, Costatophora serrana P.J. Fischer, 1927 - syn of: Costatophora serana (P.J. Fischer, 1927) - (TRIPHORIDAE)
- serrana, Torrecoptis serrana C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- serranegrae, Africonus serranegrae (E. Rolán, 1990) - (CONIDAE)
- serranoi, Aforia serranoi S. Gofas, Y.I. Kantor & A.A. Luque, 2014 - (COCHLESPIRIDAE)
- serranum, Farcimen auriculatum serranum L.O. Alcalde, 1945 - (MEGALOMASTOMIDAE)
- serranum, Chondrothyrium violaceum serranum C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- serrarius, Tornatellides serrarius H.A. Pilsbry & C.M. Cooke, 1915 - (ACHATINELLIDAE)
- serrata, Lamellina serrata W.H. Pease, 1860 - syn of: Lamellidea pusilla (A.A. Gould, 1847) - (ACHATINELLIDAE)
- serrata, Armina serrata O'Donoghue, 1929 - (ARMINIDAE)
- serrata, Pseudoptera serrata L.W. Stephenson, 1952 † - (BAKEVELLIIDAE) (FOSSIL)
- serrata, Bohaispira serrata Youlou, 1978 † - (BOHAISPIRIDAE) (FOSSIL)
- serrata, Jayella serrata T. Iredale & C.F. Laseron, 1957 - (CAECIDAE)
- serrata, Kimberleytrachia serrata F. Criscione & F. Köhler, 2015 - (CAMAENIDAE)
- serrata, Euclia serrata A.A. Olsson, 1964 † - (CANCELLARIIDAE) (FOSSIL)
- serrata, Brocchinia serrata (C.R. Laws, 1935 †) - (CANCELLARIIDAE) (FOSSIL)
- serrata, Scalptia serrata (L.A. Reeve, 1856 non Bronn, 1831) - syn of: Scalptia crossei (C.G. Semper, 1861) - (CANCELLARIIDAE)
- serrata, Cancellaria serrata L.A. Reeve, 1856 non Bronn, 1831 - syn of: Scalptia crossei (C.G. Semper, 1861) - (CANCELLARIIDAE)
- serrata, Therasiella serrata R.A. Cumber, 1967 - (CHAROPIDAE)
- serrata, Clathurella serrata P.P. Carpenter, 1856 - syn of: Clathurella rava (R.B. Hinds, 1843) - (CLATHURELLIDAE)
- serrata, Serriphaedusa serrata (G.P. Deshayes, 1870) - (CLAUSILIIDAE)
- serrata, Ransoniella serrata L. Dolin, 2007 - syn of: Notadusta punctata (C. Linnaeus, 1771) - (CYPRAEIDAE)
- serrata, Cirsotrema serrata P. Calcara, 1841 - syn of: Cirsotrema cochlea (G.B. II Sowerby, 1844) - (EPITONIIDAE)
- serrata, Schizostoma serrata Münster, 1841 † - syn of: Schizogonium serratum (Münster, 1841 †) - (EUOMPHALIDAE) (FOSSIL)
- serrata, Babiella serrata C.J. Risso-Dominguez, 1964 - syn of: Phyllodesmium serratum (K. Baba, 1949) - (FACELINIDAE)
- serrata, Pyrgulopsis serrata R. Hershler, 1998 - (HYDROBIIDAE)
- serrata, Lepidozona serrata (P.P. Carpenter, 1864) - (ISCHNOCHITONIDAE)
- serrata, Munditia serrata (H.H. Suter, 1908) - (LIOTIIDAE)
- serrata, Cardiolucina serrata Glover & J.D. Taylor, 2016 - (LUCINIDAE)
- Serrata, Genus Serrata F.P. Jousseaume, 1875 (MARGINELLIDAE)
- serrata, Serrata serrata (J.S. Gaskoin, 1849) - (MARGINELLIDAE)
- serrata, Volvarina serrata J.S. Gaskoin, 1849 - syn of: Serrata serrata (J.S. Gaskoin, 1849) - (MARGINELLIDAE)
- serrata, Mathilda serrata C.G. Semper † - (MATHILDIDAE) (FOSSIL)
- serrata, Coralliophila serrata G.S. Coen, 1929 - (MURICIDAE)
- serrata, Northia serrata Dufresney - syn of: Northia pristis (G.P. Deshayes, 1844) - (NASSARIIDAE)
- serrata, Laevichlamys squamosa serrata (G.B. Sowerby, 1842) - (PECTINIDAE)
- serrata, Atrina serrata (Sowerby, 1825) - (PINNIDAE)
- serrata, Cyrtopinna serrata L.A. Reeve, 1858 - syn of: Atrina serrata (Sowerby, 1825) - (PINNIDAE)
- serrata, Purpurina serrata (F.A. von Quenstedt, 1858 †) - (PURPURINIDAE) (FOSSIL)
- serrata, Purpurina serrata Gerasimov, 1992 † - syn of: Purpurina orbignyana Hebert & Deslongchamps, 1860 † - (PURPURINIDAE) (FOSSIL)
- serrata, Pyroteuthis serrata J.L. Riddell, 1985 - (PYROTEUTHIDAE)
- serrata, Nepotilla serrata C.F. Laseron, 1954 - (RAPHITOMIDAE)
- serrata, Tibia serrata G. Perry, 1811 - syn of: Tibia curta (G.B. II Sowerby, 1842) - (ROSTELLARIIDAE)
- serrata, Seguenzia serrata B.A. Marshall, 1983 † - (SEGUENZIIDAE) (FOSSIL)
- serrata, Carenzia serrata B.A. Marshall, 1991 - (SEGUENZIIDAE)
- serrata, Adoryherpia serrata E. Gil-Mansilla, Ó. García-Álvarez & V. Urgorri, 2009 - (SIMROTHIELLIDAE)
- serrata, Siphonaria serrata (G. Fischer von Waldheim, 1807) - (SIPHONARIIDAE)
- serrata, Solariella serrata Stanton, 1947 † - (SOLARIELLIDAE) (FOSSIL)
- serrata, Serratina serrata (G.B. Brocchi, 1814) - (TELLINIDAE)
- serrata, Strigilla serrata O.A.L. Mörch, 1860 - (TELLINIDAE)
- serrata, Discreliotia serrata C.F. Laseron, 1958 - (TORNIDAE)
- serrata, Anticlimax serrata F. Rubio & E. Rolán, 2014 - (TORNIDAE)
- serrata, Trapezium serrata L.A. Reeve, 1843 - syn of: Irus crenatus (J.B.P.A. Lamarck, 1818) - (TRAPEZIDAE)
- serrata, Cautotriphora serrata (S. Kosuge, 1974) - (TRIPHORIDAE)
- serrata, Coluzea serrata (G.P. Deshayes, 1824 †) - (TURBINELLIDAE) (FOSSIL)
- serrata, Petricolaria serrata (G.P. Deshayes, 1853) - (VENERIDAE)
- serrata aspera, Siphonaria serrata aspera C.F.F. von Krauss, 1848 - (SIPHONARIIDAE)
- serrata emeicola, Serriphaedusa serrata emeicola H. Nordsieck, 2016 - (CLAUSILIIDAE)
- serrata sericina, Serriphaedusa serrata sericina H. Nordsieck, 2016 - (CLAUSILIIDAE)
- serrata subtriangula, Serratina serrata subtriangula (F. Sacco, 1901 †) - (TELLINIDAE) (FOSSIL)
- serrata violacea, Serriphaedusa serrata violacea J. Grego & M. Szekeres, 2011 - (CLAUSILIIDAE)
- Serrataginella, syn of: Genus Serrata F.P. Jousseaume, 1875 (MARGINELLIDAE)
- serratescens, Craginites serratescens (Cragin †) - (BRANCOCERATIDAE) (FOSSIL)
- serraticosta, Lima serraticosta Bittner, 1899 † - syn of: Imogloba gandyensis (W.J. Gordon & E.L. Yochelson, 1987 †) - (LIMIDAE) (FOSSIL)
- serraticosta, Nassarius serraticosta (H.G. Bronn, 1831 †) - (NASSARIIDAE) (FOSSIL)
- serraticosta, Indopecten serraticosta (Bittner, 1899 †) - (PECTINIDAE) (FOSSIL)
- serraticosta, Spondylus reesianus serraticosta B. Prashad, 1932 - (SPONDYLIDAE)
- serraticostata, Cranopsis serraticostata (D.G. Herbert & R.N. Kilburn, 1986) - (FISSURELLIDAE)
- Serratifusus, Genus Serratifusus T.A. Darragh, 1969 (BUCCINIDAE)
- serratilineus, Theodoxus serratilineus C. Porro, 1838 - syn of: Theodoxus danubialis (C. Pfeiffer, 1828) - (NERITIDAE)
- serratiliniformis, Theodoxus serratiliniformis D. Geyer, 1914 † - (NERITIDAE) (FOSSIL)
- Serratina, Subgenus Quadrans (Serratina) P.M. Pallary, 1922 (TELLINIDAE)
- Serratisphaerium, syn of: Genus Sphaerium J.A. Scopoli, 1777 (SPHAERIIDAE)
- serratissimus, Spondylus serratissimus W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Spondylus nicobaricus K. Schreibers, 1793 - (SPONDYLIDAE)
- serratocarinata, Puzosia serratocarinata J. Kennedy & Cobban, 1988 † - (DESMOCERATIDAE) (FOSSIL)
- Serratocerithium, Genus Serratocerithium L. Vignal, 1897 † (CERITHIIDAE) (FOSSIL)
- serratocinctum, Herpetopoma serratocinctum D.G. Herbert, 2012 - (CHILODONTIDAE)
- serratocostata, Cosa serratocostata A.W.B. Powell, 1933 - (PHILOBRYIDAE)
- serratocostata, Paralaoma serratocostata (W.H. Webster, 1906) - (PUNCTIDAE)
- serratocostata, Laoma serratocostata W.H. Webster, 1906 - syn of: Paralaoma serratocostata (W.H. Webster, 1906) - (PUNCTIDAE)
- serratocostata dispar, Cosa serratocostata dispar A.W.B. Powell, 1937 - syn of: Cosa dispar A.W.B. Powell, 1937 - (PHILOBRYIDAE)
- serratocostatum, Calliostoma serratocostatum (Speyer, 1869 †) - (CALLIOSTOMATIDAE) (FOSSIL)
- serratocostatum muelleri, Calliostoma serratocostatum muelleri (A. von Koenen) - (CALLIOSTOMATIDAE)
- serratoides, Melanatria serratoides (T.H. Aldrich, 1894 †) - (PACHYCHILIDAE) (FOSSIL)
- serratomarginata, Climacopoma serratomarginata F.S. MacNeil, 1960 † - syn of: Granosolarium mirabile (M.M. Schepman, 1909) - (ARCHITECTONICIDAE) (FOSSIL)
- serratomarginatus, Paratexanites serratomarginatus (Redtenbacher, 1873 †) - (COLLIGNONICERATIDAE) (FOSSIL)
- Serratoplicata, Subgenus Quadriplicata (Serratoplicata) R.V. Egorov, 2002 (CLAUSILIIDAE)
- Serratorotula, Subgenus Geomitra (Serratorotula) K. Groh & J. Hemmen, 1986 (HYGROMIIDAE)
- serratospinosus, Murex serratospinosus R.W. Dunker, 1883 - syn of: Vokesimurex mindanaoensis (G.B. II Sowerby, 1841) - (MURICIDAE)
- Serratotrochus, Genus Serratotrochus Conti & Fischer, 1984 † (ARCHAEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- Serratovola, Genus Serratovola T. Habe, 1951 (PECTINIDAE)
- Serratovolva, Genus Serratovolva J. Cate, 1973 (OVULIDAE)
- serratula, Pyrgula serratula Š. Brusina, 1897 † - (HYDROBIIDAE) (FOSSIL)
- serratula, Micromelania serratula Š. Brusina, 1878 † - (HYDROBIIDAE) (FOSSIL)
- serratula, Lophospira serratula Salter, 1859 † - syn of: Lophospira serrulata (Salter, 1859 †) - (LOPHOSPIRIDAE) (FOSSIL)
- serratula, Tellina serratula Š. Brusina, 1870 - syn of: Arcopagia balaustina (C. Linnaeus, 1758) - (TELLINIDAE)
- serratulum, Calliostoma serratulum J.F. Quinn, 1992 - (CALLIOSTOMATIDAE)
- serratum, Astele serratum (Stanton, 1947 †) - (CALLIOSTOMATIDAE) (FOSSIL)
- serratum, Eutrochus serratum Stanton, 1947 † - syn of: Astele serratum (Stanton, 1947 †) - (CALLIOSTOMATIDAE) (FOSSIL)
- serratum, Crucibulum serratum (W.J. Broderip, 1834) - (CALYPTRAEIDAE)
- serratum, Crucibulum serratum L.A. Reeve, 1859 - syn of: Crucibulum scutellatum Wood, 1828 - (CALYPTRAEIDAE)
- serratum, Laevicardium serratum (C. Linnaeus, 1758) - (CARDIIDAE)
- serratum, Cardium serratum C. Linnaeus, 1758 - syn of: Laevicardium serratum (C. Linnaeus, 1758) - (CARDIIDAE)
- serratum, Laevicardium serratum J.F. Gmelin, 1791 - syn of: Acrosterigma biradiatum (J.G. Bruguière, 1789) - (CARDIIDAE)
- serratum, Amoeboceras serratum (Sowerby †) - (CARDIOCERATIDAE) (FOSSIL)
- serratum, Serratocerithium serratum (J.G. Bruguière, 1792 †) - (CERITHIIDAE) (FOSSIL)
- serratum, Rhinoclavis serratum M.M. Schepman, 1909 - syn of: Rhinoclavis sordidula (A.A. Gould, 1849) - (CERITHIIDAE)
- serratum, Phyllodesmium serratum (K. Baba, 1949) - (FACELINIDAE)
- serratum, Gastrioceras serratum Girty, 1909 † - syn of: Altudoceras serratum (Girty, 1909 †) - (GASTRIOCERATIDAE) (FOSSIL)
- serratum, Serramanticoceras serratum (Steininger, 1849 †) - (GEPHUROCERATIDAE) (FOSSIL)
- serratum, Paralytoceras serratum Frech, 1902 † - (GONIATITIDA (UNASSIGNED)) (FOSSIL)
- serratum, Altudoceras serratum (Girty, 1909 †) - (PARAGASTRIOCERATIDAE) (FOSSIL)
- serratum, Schizogonium serratum (Münster, 1841 †) - (SCHIZOGONIIDAE) (FOSSIL)
- serratum, Prothalassoceras serratum Maximova, 1948 † - (THALASSOCERATIDAE) (FOSSIL)
- serratum multilineatum, Laevicardium serratum multilineatum W.H. Dall & C.T. Simpson, 1901 - syn of: Laevicardium pristis (J.B.G.M. Bory De Saint-Vincent, 1827) - (CARDIIDAE)
- serratum oviputamen, Laevicardium serratum oviputamen (L.A. Reeve, 1844) - (CARDIIDAE)
- serratum sordidula, Cerithium serratum sordidula A.A. Gould, 1849 - syn of: Rhinoclavis sordidula (A.A. Gould, 1849) - (CERITHIIDAE)
- serratum sordidula, Rhinoclavis serratum sordidula A.A. Gould, 1849 - syn of: Rhinoclavis sordidula (A.A. Gould, 1849) - (CERITHIIDAE)
- serratum sybariticum, Laevicardium serratum sybariticum W.H. Dall, 1886 - syn of: Laevicardium sybariticum (W.H. Dall, 1886) - (CARDIIDAE)
- serratus, Sanyangites serratus Zheng & X.T. Ma, 1982 † - (ARAXOCERATIDAE) (FOSSIL)
- serratus, Drymaeus serratus (L. Pfeiffer, 1855) - (BULIMULIDAE)
- serratus, Cerithium serratus W. Wood, 1818 - syn of: Cerithium echinatum J.B.P.A. Lamarck, 1822 - (CERITHIIDAE)
- serratus, Decipifus serratus (P.P. Carpenter, 1857) - (COLUMBELLIDAE)
- serratus, Hypermastus serratus A. Warén, 1991 - (EULIMIDAE)
- serratus, Euomphalus serratus Knight, 1934 † - (EUOMPHALIDAE) (FOSSIL)
- serratus, Goniatites serratus Steininger, 1849 † - syn of: Serramanticoceras serratum (Steininger, 1849 †) - (GONIATITIDAE) (FOSSIL)
- serratus, Hipponix serratus P.P. Carpenter, 1856 - syn of: Hipponix leptus L.R.L. Simone, 2002 - (HIPPONICIDAE)
- serratus, Uddenites serratus Plummer & P.H. Scott, 1937 † - (MEDLICOTTIIDAE) (FOSSIL)
- serratus, Latiaxis serratus B. Wade, 1916 † - (MURICIDAE) (FOSSIL)
- serratus, Magilus serratus G.B. II Sowerby, 1872 - syn of: Magilus antiquus P.D. Montfort, 1810 - (MURICIDAE)
- serratus, Murex serratus W. Wood, 1818 - syn of: Cerithium echinatum J.B.P.A. Lamarck, 1822 - (MURICIDAE)
- serratus, Septifer serratus (Melleville, 1843 †) - (MYTILIDAE) (FOSSIL)
- serratus, Nassarius serratus (G.B. Brocchi, 1814 †) - (NASSARIIDAE) (FOSSIL)
- serratus, Pecten serratus L.A. Reeve, 1853 - syn of: Laevichlamys squamosa (J.F. Gmelin, 1791) - (PECTINIDAE)
- serratus, Pecten serratus G.B. II Sowerby, 1842 - syn of: Mimachlamys dissimilis (R.P. Montrouzier, 1858) - (PECTINIDAE)
- serratus, Priodiscus serratus (C.B. Adams, 1868) - (RHYTIDIDAE)
- serratus, Turbo serratus L.W. Stephenson, 1953 † - (TURBINIDAE) (FOSSIL)
- serratus, Omalaxis serratus G.P. Deshayes, 1832 † - (TURRITELLIDAE) (FOSSIL)
- serravalensis, Charpentieria itala serravalensis (H. Nordsieck, 1963) - (CLAUSILIIDAE)
- serrei, Volvaria serrei A.R.J.B. Bavay, 1913 - syn of: Volvarina serrei (A.R.J.B. Bavay, 1913) - (ACTEONIDAE)
- serrei, Volvarina serrei (A.R.J.B. Bavay, 1913) - (MARGINELLIDAE)
- serrei, Pugnus serrei (A.R.J.B. Bavay, 1911) - (MARGINELLIDAE)
- serrei, Prunum serrei A.R.J.B. Bavay, 1913 - syn of: Volvarina serrei (A.R.J.B. Bavay, 1913) - (MARGINELLIDAE)
- serrei, Nucinella serrei É. Lamy, 1912 - (NUCINELLIDAE)
- serrei, Stossichia serrei A.R.J.B. Bavay, 1922 - syn of: Stosicia aberrans (C.B. Adams, 1850) - (RISSOIDAE)
- serrei, Stosicia serrei A.R.J.B. Bavay, 1922 - syn of: Stosicia aberrans (C.B. Adams, 1850) - (ZEBINIDAE)
- serrensis, Melanopsis serrensis Mayer-Eymar, 1903 † - (MELANOPSIDAE) (FOSSIL)
- serreseanus hexapodus, Aporrhais serreseanus hexapodus F. Nordsieck, 1968 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresensis, Carinigera schuetti serresensis (H. Nordsieck, 2015) - (CLAUSILIIDAE)
- serresi, Filholia laevolonga serresi (Mathéron, 1862 †) - (FILHOLIIDAE) (FOSSIL)
- serresi, Frechenia serresi H. Nordsieck, 2017 † - (HELICIDAE) (FOSSIL)
- serresi, Viviparus serresi W.A. Wenz, 1928 † - (VIVIPARIDAE) (FOSSIL)
- serresiana crassa, Rostellaria serresiana crassa É.A.A. Locard, 1890 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (ROSTELLARIIDAE)
- serresiana minor, Rostellaria serresiana minor É.A.A. Locard, 1890 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (ROSTELLARIIDAE)
- serresiana ventricosa, Rostellaria serresiana ventricosa É.A.A. Locard, 1890 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (ROSTELLARIIDAE)
- serresianus, Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus applicata, Aporrhais serresianus applicata F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus bicaudatus, Aporrhais serresianus bicaudatus F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus bifida, Aporrhais serresianus bifida F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus borealis, Aporrhais serresianus borealis W. Kobelt, 1888 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus crassa, Aporrhais serresianus crassa É.A.A. Locard, 1890 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus digitisbrevibus, Aporrhais serresianus digitisbrevibus F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus digitocornutus, Aporrhais serresianus digitocornutus F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus expensa, Aporrhais serresianus expensa F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus fecundus, Aporrhais serresianus fecundus F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus foliacea, Aporrhais serresianus foliacea F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus hexapoda, Aporrhais serresianus hexapoda F. Nordsieck, 1968 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus immodicus, Aporrhais serresianus immodicus F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus longidigitatus, Aporrhais serresianus longidigitatus F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus macandrewae, Aporrhais serresianus macandrewae J.G. Jeffreys, 1867 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus minor, Aporrhais serresianus minor É.A.A. Locard, 1890 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus multiplicata, Aporrhais serresianus multiplicata F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus mutilus, Aporrhais serresianus mutilus F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus pliorara, Chenopus serresianus pliorara F. Sacco, 1893 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus pliotransiens, Chenopus serresianus pliotransiens F. Sacco, 1893 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus sextadigitata, Aporrhais serresianus sextadigitata F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus tridigitata, Aporrhais serresianus tridigitata F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus varia, Aporrhais serresianus varia F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus ventricosa, Aporrhais serresianus ventricosa É.A.A. Locard, 1890 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus violaceusdigitatus, Aporrhais serresianus violaceusdigitatus F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serresianus vixprominens, Aporrhais serresianus vixprominens F. Settepassi, 1971 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- serriale, Buccinum serriale G.P. Deshayes, 1834 - syn of: Maculotriton serriale (G.P. Deshayes, 1834) - (BUCCINIDAE)
- serriale, Maculotriton serriale (G.P. Deshayes, 1834) - (MURICIDAE)
- serriale digitale, Maculotriton serriale digitale L.A. Reeve, 1844 - syn of: Maculotriton digitale (L.A. Reeve, 1844) - (MURICIDAE)
- serriale longus, Maculotriton serriale longus H.A. Pilsbry & E.G. Vanatta, 1904 - (MURICIDAE)
- serricata, Axinopsida serricata (P.P. Carpenter, 1864) - (THYASIRIDAE)
- serricata, Diplodonta serricata L.A. Reeve, 1850 - syn of: Diplodonta sericata (L.A. Reeve, 1850) - (UNGULINIDAE)
- serricosta, Glyptoactis serricosta (A. Heilprin, 1887 †) - (CARDITIDAE) (FOSSIL)
- serricostata, Tellina serricostata S. Tokunaga, 1906 - (TELLINIDAE)
- serricostatum, Acrosterigma serricostatum J.C. Melvill & R. Standen, 1899 - syn of: Vasticardium elongatum (J.G. Bruguière, 1789) - (CARDIIDAE)
- serricula, Petricola serricula A. de Rochebrune, 1881 - syn of: Petricola lapicida (J.F. Gmelin, 1791) - (VENERIDAE)
- Serridens, syn of: Genus Pristes P.P. Carpenter, 1864 (LASAEIDAE)
- serriense, Aulatornoceras serriense Becker, 1993 † - (TORNOCERATIDAE) (FOSSIL)
- serrifera, Tridacna serrifera J.B.P.A. Lamarck, 1819 - syn of: Tridacna derasa P.F. Röding, 1798 - (TRIDACNIDAE)
- serriferum, Pomatias serriferum C.B. Adams, 1849 - syn of: Adamsiella grayana (L. Pfeiffer, 1846) - (POMATIIDAE)
- Serrifusus, Genus Serrifusus Meek, 1876 † (FASCIOLARIIDAE) (FOSSIL)
- serrigerus, Oecotraustes serrigerus L. Waagen, 1869 † - (OPPELIIDAE) (FOSSIL)
- Serrilaminula, syn of: Genus Corbicula J.K. Megerle Von Mühlfeld, 1811 (CYRENIDAE)
- Serripecten, Genus Serripecten Marwick, 1928 † (PECTINIDAE) (FOSSIL)
- Serripes, Genus Serripes A. Gould, 1841 (CARDIIDAE)
- Serriphaedusa, Genus Serriphaedusa H. Nordsieck, 2001 (CLAUSILIIDAE)
- serrodens, Hudlestonia serrodens (F.A. von Quenstedt, 1846 †) - (HILDOCERATIDAE) (FOSSIL)
- serrula, Auriculella serrula C.M. Cooke, 1915 - (ACHATINELLIDAE)
- serrula, Khasiella serrula (W.H. Benson) - (ARIOPHANTIDAE)
- Serrula, syn of: Genus Donax C. Linnaeus, 1758 (DONACIDAE)
- serrula, Candidula serrula P.M.A. Morelet, 1845 - syn of: Candidula setubalensis (L. Pfeiffer, 1850) - (HYGROMIIDAE)
- serrula, Mangelia serrula K.H. Barnard, 1964 - (MANGELIIDAE)
- serrula, Delonovolva serrula C.N. Cate, 1973 - syn of: Cuspivolva habui (C.N. Cate, 1973) - (OVULIDAE)
- Serrulastra, Genus Serrulastra Nordsieck, 1981 † (CLAUSILIIDAE) (FOSSIL)
- serrulata, Venericardia serrulata (G.P. Deshayes †) - (CARDITIDAE) (FOSSIL)
- serrulata, Arcturellina sulcata serrulata (G.P. Deshayes, 1858 †) - (CARDITIDAE) (FOSSIL)
- serrulata, Serrulina serrulata (L. Pfeiffer, 1847) - (CLAUSILIIDAE)
- serrulata, Xerocrassa serrulata (H.H. Beck, 1837) - (HYGROMIIDAE)
- serrulata, Lophospira serrulata (Salter, 1859 †) - (LOPHOSPIRIDAE) (FOSSIL)
- serrulata, Neritina serrulata C.A. Récluz, 1842 - syn of: Vittina coromandeliana (G.B. II Sowerby, 1832) - (NERITIDAE)
- serrulata, Tropidophora socotrana serrulata E. Neubert, 2009 - (POMATIIDAE)
- serrulata, Avicula serrulata R.W. Dunker, 1849 - syn of: Pteria lata Gray, 1845 - (PTERIIDAE)
- serrulata, Tellina serrulata Š. Brusina - syn of: Arcopagia balaustina (C. Linnaeus, 1758) - (TELLINIDAE)
- serrulata ceres, Xerocrassa serrulata ceres R.A.M. Brandt, 1959 - (HYGROMIIDAE)
- serrulata jahamaensis, Xerocrassa serrulata jahamaensis R.A.M. Brandt, 1959 - (HYGROMIIDAE)
- serrulata semiserrata, Clausilia serrulata semiserrata W.A. Lindholm, 1913 - syn of: Serrulina serrulata (L. Pfeiffer, 1847) - (CLAUSILIIDAE)
- serrulatum, Europicardium serrulatum (G.P. Deshayes, 1855) - (CARDIIDAE)
- serrulatum, Fissidentalium serrulatum (E.A. Smith, 1906) - (DENTALIIDAE)
- serrulatum kobelti, Europicardium serrulatum kobelti (H. von Maltzan, 1885) - (CARDIIDAE)
- serrulatus, Theodoxus serrulatus (Š. Brusina, 1892 †) - (NERITIDAE) (FOSSIL)
- Serrulella, Genus Serrulella Nordsieck, 1978 † (CLAUSILIIDAE) (FOSSIL)
- serrulifera, Purpuradusta serrulifera (F.A. Schilder & M. Schilder, 1938) - (CYPRAEIDAE)
- Serrulina, Genus Serrulina A. Mousson, 1873 (CLAUSILIIDAE)
- Serrulinella, Genus Serrulinella H. Nordsieck, 1984 (CLAUSILIIDAE)
- serrulosa, Pravispira serrulosa (O. von Retowski, 1889) - (CLAUSILIIDAE)
- Serruluna, Genus Serruluna H. Nordsieck, 1981 † (CLAUSILIIDAE) (FOSSIL)
- Serruplica, Subgenus Serrulastra (Serruplica) Nordsieck, 1981 † (CLAUSILIIDAE) (FOSSIL)
- Serrustigma, Subgenus Serrulastra (Serrustigma) Nordsieck, 1981 † (CLAUSILIIDAE) (FOSSIL)
- sersoni, Stenopronorites sersoni Nassichuk, 1975 † - (PRONORITIDAE) (FOSSIL)
- serta, Heteroturris serta A.V. Sysoev, 1997 - (BORSONIIDAE)
- serta, Leptaxis serta J.A. Albers, 1854 - syn of: Leptaxis advena (P.B. Webb & S. Berthelot, 1833) - (HYGROMIIDAE)
- serta, Hedenstroemia serta A.M. Popov, 1957 † - syn of: Hedenstroemia tscherskii (A.M. Popov, 1939 †) - (LANCEOLITIDAE) (FOSSIL)
- serta, Kurtziella serta (W.G. Fargo, 1953) - (MANGELIIDAE)
- serta, Cryoturris serta A.A. Olsson & A. Harbison, 1953 † - (MANGELIIDAE) (FOSSIL)
- serta, Nassa serta (J.G. Bruguière, 1789) - (MURICIDAE)
- sertacinctus, Phasmoconus sertacinctus (D. Röckel, 1986) - (CONIDAE)
- sertata, Coralliophila sertata (C. Hedley, 1903) - (MURICIDAE)
- sertata, Purpura sertata C. Hedley, 1903 - syn of: Coralliophila sertata (C. Hedley, 1903) - (MURICIDAE)
- sertatus, Naticarius sertatus (K.T. Menke, 1843) - (NATICIDAE)
- sertiferus, Conus sertiferus Manzoni, 1870 † - (CONIDAE) (FOSSIL)
- Sertodaria, syn of: Genus Cyrtodaria A.E. Reuss, 1801 (HIATELLIDAE)
- sertula, Insolentia sertula (H.H. Suter, 1917 †) - (CONOIDEA (UNASSIGNED)) (FOSSIL)
- sertula, Zeuxis sertula A. Adams, 1852 - syn of: Nassarius haldemani (R.W. Dunker, 1847) - (NASSARIIDAE)
- sertula, Nassa sertula A. Adams, 1852 - syn of: Nassarius haldemani (R.W. Dunker, 1847) - (NASSARIIDAE)
- sertulariarum, Buccinum sertulariarum D'Orbigny, 1839 - syn of: Costoanachis sertulariarum (A.V.M.D. D'Orbigny, 1839) - (BUCCINIDAE)
- sertulariarum, Costoanachis sertulariarum (A.V.M.D. D'Orbigny, 1839) - (COLUMBELLIDAE)
- sertulariicola, Entonomenia sertulariicola (L. Salvini-Plawén, 1978) - (RHOPALOMENIIDAE)
- sertularium, Anachis sertularium D'Orbigny, 1839 - syn of: Costoanachis sertulariarum (A.V.M.D. D'Orbigny, 1839) - (COLUMBELLIDAE)
- sertulus, Nassarius sertulus A. Adams, 1852 - syn of: Nassarius haldemani (R.W. Dunker, 1847) - (NASSARIIDAE)
- sertum, Buccinum sertum J.G. Bruguière, 1789 - syn of: Nassa serta (J.G. Bruguière, 1789) - (BUCCINIDAE)
- sertum, Theba sertum T.A. de M. Monterosato, 1892 - syn of: Theba pisana (O.F. Müller, 1774) - (HELICIDAE)
- sertum, Mitra sertum A. Duval, 1852 - syn of: Strigatella scutulata (J.F. Gmelin, 1791) - (MITRIDAE)
- sertum, Nassa sertum J.G. Bruguière, 1789 - syn of: Nassa serta (J.G. Bruguière, 1789) - (MURICIDAE)
- sertum, Murex sertum J.G. Bruguière, 1789 - syn of: Nassa serta (J.G. Bruguière, 1789) - (MURICIDAE)
- sertunayana, Crenella sertunayana Kogan, 1964 † - syn of: Crenella noyamiana Kogan, 1964 † - (MYTILIDAE) (FOSSIL)
- sertunayensis, Felaniella sertunayensis (Slodkewitsch, 1938 ex Kogan, MS †) - (UNGULINIDAE) (FOSSIL)
- seruiensis, Turbo seruiensis D. Smits & R.G. Moolenbeek, 1995 - syn of: Turbo moluccensis R.A. Philippi, 1846 - (TURBINIDAE)
- serum, Nemocardium serum (F.W. Hutton, 1873 †) - (CARDIIDAE) (FOSSIL)
- serum, Extropharciceras serum Bockwinkel, Becker & Ebbighausen, 2015 † - (PHARCICERATIDAE) (FOSSIL)
- serum, Phylloceras serum Oppel, 1865 † - (PHYLLOCERATIDAE) (FOSSIL)
- serum, Aristoceras serum Bogoslovskaya & A.M. Popov, 1986 † - (THALASSOCERATIDAE) (FOSSIL)
- Seruoa, Genus Seruoa Gonzalez 2006 † (SANGUINOLITIDAE) (FOSSIL)
- serus, Paratirolites serus W. Korn & Ghaderi, 2015 † - (DZHULFITIDAE) (FOSSIL)
- serus, Ammonellipsites serus D. Korn & al., 2010 † - (PERICYCLIDAE) (FOSSIL)
- serus, Somoholites serus Bogoslovskaya, 1997 † - (SOMOHOLITIDAE) (FOSSIL)
- serus, Megalomphalus serus E. Rolán & F. Rubio, 1999 - (VANIKORIDAE)
- servadeii, Specula servadeii Cecalupo & Perugia, 2017 - (NEWTONIELLIDAE)
- servaini, Cerithium servaini É.A.A. Locard, 1886 - syn of: Cerithium vulgatum J.G. Bruguière, 1792 - (CERITHIIDAE)
- servaini, Dreissena servaini É.A.A. Locard, 1893 - syn of: Dreissena polymorpha (P.S. Pallas, 1771) - (DREISSENIDAE)
- servaini, Coilostele servaini J.R. Bourguignat, 1880 - syn of: Coilostele akus G. Servain, 1880 - (FERUSSACIIDAE)
- servaini, Horatia servaini J.R. Bourguignat, 1887 - syn of: Islamia valvataeformis (O.F. von Möllendorff, 1873) - (HYDROBIIDAE)
- servaini, Microcolpia servaini J.R. Bourguignat, 1884 - syn of: Melanopsis cornea Pfeiffer, 1828 - (MELANOPSIDAE)
- servaini, Mitra servaini É.A.A. Locard, 1890 - syn of: Pusia ebenus (J.B.P.A. Lamarck, 1811) - (MITRIDAE)
- servaini, Moitessieria servaini J.R. Bourguignat, 1880 - (MOITESSIERIIDAE)
- servaini, Nassa servaini É.A.A. Locard, 1887 - syn of: Nassarius nitidus (J.G. Jeffreys, 1867) - (NASSARIIDAE)
- servaini, Ortizius servaini J.R. Bourguignat, 1883 - syn of: Ortizius navarricus (J.R. Bourguignat, 1870) - (OXYCHILIDAE)
- servaini, Patella servaini J.F. Mabille, 1888 - (PATELLIDAE)
- servaini, Segmentina servaini G. Servain, 1881 - syn of: Segmentina nitida (O.F. Müller, 1774) - (PLANORBIDAE)
- servaini, Raphitoma servaini É.A.A. Locard, 1891 - syn of: Raphitoma purpurea (G. Montagu, 1803) - (RAPHITOMIDAE)
- servaini, Tortaxis servaini (J.F. Mabille, 1887) - (SUBULINIDAE)
- servaini, Testacella servaini P. Massot, 1870 - syn of: Testacella haliotidea J.P.R. Draparnaud, 1801 - (TESTACELLIDAE)
- servaini, Mastonia servaini F.P. Jousseaume, 1884 - (TRIPHORIDAE)
- servaini, Leguminaia servaini J.R. Bourguignat, 1883 - syn of: Microcondylaea compressa (K.T. Menke, 1830) - (UNIONIDAE)
- servaini, Tapes servaini É.A.A. Locard, 1886 - syn of: Polititapes aureus (J.F. Gmelin, 1791) - (VENERIDAE)
- servainiana, Amnicola servainiana A. Letourneux - syn of: Pseudamnicola letourneuxiana (J.R. Bourguignat, 1862) - (AMNICOLIDAE)
- servainiana, Paludinella servainiana A. Paladilhe, 1870 - syn of: Bythinella servainiana (A. Paladilhe, 1870) - (ASSIMINEIDAE)
- servainiana, Bythinella servainiana (A. Paladilhe, 1870) - (BYTHINELLIDAE)
- servainiana, Fagotia servainiana J.R. Bourguignat, 1884 - syn of: Esperiana esperi (A.E.J. Férussac, 1823) - (MELANOPSIDAE)
- servainiana, Grandidieria burtoni servainiana J.R. Bourguignat, 1885 - (UNIONIDAE)
- servainiana, Vitrina servainiana A.de Saint-Simon, 1870 - syn of: Vitrina pellucida (O.F. Müller, 1774) - (VITRINIDAE)
- servainiana caspica, Bithynia servainiana caspica C.A. Westerlund, 1902 - syn of: Allocinma caspica (C.A. Westerlund, 1902) - (BITHYNIIDAE)
- servainianum, Digyreidum servainianum A. Letourneux, 1887 - syn of: Pseudobithynia renei (A. Letourneux, 1887) - (BITHYNIIDAE)
- servainianum, Gabbia servainianum A. Letourneux, 1887 - syn of: Pseudobithynia renei (A. Letourneux, 1887) - (BITHYNIIDAE)
- servainianum, Neothauma servainianum A. Grandidier, 1885 - (VIVIPARIDAE)
- servainianum minor, Neothauma servainianum minor J.R. Bourguignat, 1888 - (VIVIPARIDAE)
- servata, Pleurofusia servata (T.A. Conrad, 1848 †) - (TURRIDAE) (FOSSIL)
- Servatrina, syn of: Genus Atrina J.E. Gray, 1847 (PINNIDAE)
- Servatrina, syn of: Genus Atrina J.E. Gray, 1847 (PINNIDAE)
- serventyi, Heteroteuthis serventyi J.K. Allan, 1945 - (SEPIOLIDAE)
- serviana, Isabellaria praecipua serviana H. Nordsieck, 1972 - (CLAUSILIIDAE)
- servica, Omphiscola servica Kovalenko, 2004 † - (LYMNAEIDAE) (FOSSIL)
- servilis, Gastrocopta servilis (A.A. Gould, 1843) - (GASTROCOPTIDAE)
- servilis, Paralaoma servilis (R.J. Shuttleworth, 1852) - (PUNCTIDAE)
- servilis kailuana, Gastrocopta servilis kailuana H.A. Pilsbry, 1917 - (GASTROCOPTIDAE)
- servilis oblonga, Gastrocopta servilis oblonga (L. Pfeiffer, 1853) - (GASTROCOPTIDAE)
- servilis riisei, Gastrocopta servilis riisei (L. Pfeiffer, 1852) - (GASTROCOPTIDAE)
- servina, Aplysia servina W.H. Dall & C.T. Simpson, 1901 - syn of: Aplysia cervina (W.H. Dall & C.T. Simpson, 1901) - (APLYSIIDAE)
- servus, Napaeus servus (A. Mousson, 1872) - (ENIDAE)
- servus, Holopea servus J. Perner, 1903 † - syn of: Cyclonema servus (J. Perner, 1903 †) - (HOLOPEIDAE) (FOSSIL)
- servus, Cyclonema servus (J. Perner, 1903 †) - (PLATYCERATIDAE) (FOSSIL)
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