- Sao, syn of: Genus Pyrunculus H.A. Pilsbry in G.W. Tryon & H.A. Pilsbry, 1895 (RETUSIDAE)
- saona, Cerion yumaensis saona E.G. Vanatta, 1924 - (CERIONIDAE)
- saonaense, Chondropomium eusarcum saonaense P. Bartsch, 1946 - (POMATIIDAE)
- saopaulensis, Streptaxis saopaulensis H.A. Pilsbry, 1930 - (STREPTAXIDAE)
- Saotomea, Genus Saotomea T. Habe, 1943 (VOLUTIDAE)
- saotomensis, Archachatina marginata saotomensis unknown - (ACHATINIDAE)
- saotomensis, Assiminea saotomensis E. Rolán, 2013 - (ASSIMINEIDAE)
- saotomensis, Callochiton saotomensis B. Dell'Angelo, E. Schwabe & al., 2014 - (CALLOCHITONIDAE)
- saotomensis, Mitrella saotomensis E. Rolán, 2005 - (COLUMBELLIDAE)
- saotomensis, Mitra barbadensis saotomensis V. Félix-Alves & D. Fernandez, 1989 - (MITRIDAE)
- saotomensis, Mitromorpha saotomensis (E. Rolán & F. Boyer, 2001) - (MITROMORPHIDAE)
- saotomensis, Murchisonella saotomensis A. Peñas & E. Rolán, 2013 - (MURCHISONELLIDAE)
- saotomensis, Pseudoscilla saotomensis A. Peñas & E. Rolán, 1999 - (PYRAMIDELLIDAE)
- saotomensis, Odontocymbiola americana saotomensis I.S. Calvo & J. Coltro, 1997 - (VOLUTIDAE)
- saoudense, Metacenoceras saoudense Tinant, 1987 † - (CENOCERATIDAE) (FOSSIL)
- saourensis, Goniatites saourensis Pareyn, 1961 † - (GONIATITIDAE) (FOSSIL)
- saourensis, Maxigoniatites saourensis (Pareyn, 1961 †) - (MAXIGONIATITIDAE) (FOSSIL)
- sapa, Sedilia sapa (W.G. Fargo, 1914 †) - (HORAICLAVIDAE) (FOSSIL)
- sapa sapala, Sedilia sapa sapala A.A. Olsson & A. Harbison, 1953 - (HORAICLAVIDAE)
- sapala, Sedilia sapa sapala A.A. Olsson & A. Harbison, 1953 - (HORAICLAVIDAE)
- saparuana, Szekeresia saparuana A. Varga & B. Páll-Gergely, 2017 - syn of: Bellardiella saparuana A. Varga & B. Páll-Gergely, 2017 - (CLATHURELLIDAE)
- saparuana, Bellardiella saparuana A. Varga & B. Páll-Gergely, 2017 - (PUPINIDAE)
- sapeca, Geotrochus sapeca P.M. Heude, 1890 - syn of: Videna sapeca (P.M. Heude, 1890) - (HELICARIONIDAE)
- sapeca, Videna sapeca (P.M. Heude, 1890) - (TROCHOMORPHIDAE)
- sapelona, Okenia sapelona Er. Marcus & Ev. Marcus, 1967 - (GONIODORIDIDAE)
- Sapha, Genus Sapha E.G.G. Marcus, 1959 (PHILINOGLOSSIDAE)
- saphenia, Octopus saphenia J.E. Gray, 1849 - (OCTOPODIDAE)
- saphronovi, Verchojanogrammysia saphronovi Muromzeva 1984 † - (CARDIIDA (UNASSIGNED)) (FOSSIL)
- saphronovi, Verchanogrammysia saphronovi Muromtseva, 1984 † - (SANGUINOLITIDAE) (FOSSIL)
- Saphtia, Genus Saphtia Winter, 2008 (HELICARIONIDAE)
- sapia, Odostomia sapia W.H. Dall & P. Bartsch, 1909 - syn of: Boonea cincta (P.P. Carpenter, 1864) - (PYRAMIDELLIDAE)
- sapidum, Calliostoma sapidum W.H. Dall, 1881 - (CALLIOSTOMATIDAE)
- sapiella, Teinostoma sapiella W.H. Dall, 1919 - (TORNIDAE)
- sapiens, Homo sapiens C. Linnaeus, 1758 - (Hominidae)
- sapiens, Posttornoceras sapiens W. Korn, 1999 † - syn of: Maideroceras sapiens (W. Korn, 1999 †) - (POSTTORNOCERATIDAE) (FOSSIL)
- sapiens, Maideroceras sapiens (W. Korn, 1999 †) - (SPORADOCERATIDAE) (FOSSIL)
- sapiens balangodensis, Homo sapiens balangodensis Deraniyagala, 1955 † - (Hominidae) (FOSSIL)
- sapiens cromagnoide, Homo sapiens sapiens cromagnoide † - (Hominidae) (FOSSIL)
- sapiens heidelbergensis, Homo sapiens heidelbergensis Schoetensack, 1908 † - syn of: Homo heidelbergensis Schoetensack, 1908 † - (Hominidae) (FOSSIL)
- sapiens idaltu, Homo sapiens idaltu White & al., 2003 † - (Hominidae) (FOSSIL)
- sapiens neanderthalensis, Homo sapiens neanderthalensis King, 1864 † - syn of: Homo neanderthalensis King, 1864 † - (Hominidae) (FOSSIL)
- sapiens sapiens cromagnoide, Homo sapiens sapiens cromagnoide † - (Hominidae) (FOSSIL)
- sapitshkiense, Pseudocrioceras waageni sapitshkiense (Rouchadze, 1933 †) - (ANCYLOCERATIDAE) (FOSSIL)
- sapius, Pararetifusus sapius (W.H. Dall, 1919) - (BUCCINIDAE)
- sapius, Colus sapius W.H. Dall, 1919 - syn of: Pararetifusus sapius (W.H. Dall, 1919) - (BUCCINIDAE)
- sapkarevi, Tandonia sapkarevi S. Stankovic, 2005 - (MILACIDAE)
- saplisi, Etrema saplisi F.S. MacNeil, 1960 † - (CLATHURELLIDAE) (FOSSIL)
- saplisi, Murex saplisi F.S. MacNeil, 1961 † - (MURICIDAE) (FOSSIL)
- sapolana, Helicostyla fulgens sapolana P. Bartsch, 1932 - (BRADYBAENIDAE)
- sapolwanaensis, Minnivola sapolwanaensis G.S. Carter, 1966 † - (PECTINIDAE) (FOSSIL)
- saponacea, Hemicycla saponacea (R.T. Lowe, 1861) - (HELICIDAE)
- saponaria, Lamelliconcha saponaria A.A. Olsson, 1928 † - (VENERIDAE) (FOSSIL)
- saporosa, Trochulus saporosa J.F. Mabille, 1877 - syn of: Trichia hispida (C. Linnaeus, 1758) - (HYGROMIIDAE)
- sapotalensis, Actinonaias sapotalensis (I. Lea, 1841) - (UNIONIDAE)
- sapotanus, Pitar sapotanus A.A. Olsson, 1932 † - (VENERIDAE) (FOSSIL)
- sapotilla, Mulinia sapotilla W.H. Dall, 1898 † - (MACTRIDAE) (FOSSIL)
- sapotilla, Prunum sapotilla (R.B. Hinds, 1844) - (MARGINELLIDAE)
- sapotilla, Marginella sapotilla R.B. Hinds, 1844 - syn of: Prunum sapotilla (R.B. Hinds, 1844) - (MARGINELLIDAE)
- sapotilla, Nucula sapotilla A.A. Gould, 1841 - syn of: Yoldia sapotilla (A.A. Gould, 1841) - (NUCULIDAE)
- sapotilla, Yoldia sapotilla (A.A. Gould, 1841) - (YOLDIIDAE)
- sapperi, Cyrtonaias sapperi (H.F.A. von Ihering, 1901) - (UNIONIDAE)
- sapphicus, Nodicoeloceras sapphicus (Renz 1912 †) - (DACTYLIOCERATIDAE) (FOSSIL)
- sapphirostoma, Conus sapphirostoma H.C. Weinkauff, 1874 - syn of: Splinoconus biliosus (P.F. Röding, 1798) - (CONIDAE)
- sapporo, Euhadra brandtii sapporo I. Ijima, 1891 - (BRADYBAENIDAE)
- saprensis, Ambigua fuscolabiata saprensis (W. Kobelt, 1904) - (HELICIDAE)
- saprensis, Cernuella saprensis W. Kobelt, 1907 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- saproxylophaga, Canaridiscus saproxylophaga M.R. Alonso, D.T. Holyoak & Y. Yanes, 2011 - (DISCIDAE)
- Saptadanta, Genus Saptadanta Prashad & Rao, 1934 (LEPETELLIDAE)
- saqamii, Satsuma saqamii J.T. Kuroda & H. Minato, 1975 - (CAMAENIDAE)
- sarabensis, Sarkhia sarabensis P. Glöer & V.M. Pešic, 2012 - (HYDROBIIDAE)
- saracena, Helix saracena C.A. Westerlund, 1889 - syn of: Murella globularis ascherae (W. Kobelt, 1880) - (HELICIDAE)
- saracocheae, Heleobia saracocheae (H. Hass, 1955) - (COCHLIOPIDAE)
- sarae, Mutela sarae H.B. Preston, 1913 - syn of: Aspatharia subreniformis (G.B. Sowerby, 1867) - (IRIDINIDAE)
- sarae, Chicoreus sarae E.J. Petuch, 1994 † - (MURICIDAE) (FOSSIL)
- sarae, Wallerconcha sarae P.H. Valentich-Scott & C.L. Powell, 2014 † - (THYASIRIDAE) (FOSSIL)
- saragasae, Africonus saragasae (E. Rolán, 1986) - (CONIDAE)
- sarahae, Mercuria sarahae (A. Paladilhe, 1869) - (HYDROBIIDAE)
- sarahae, Pandora sarahae P.H. Valentich-Scott & C.C. Skoglund, 2010 - (PANDORIDAE)
- sarahberlinerae, Bulla sarahberlinerae C.J. Maury, 1917 † - (BULLIDAE) (FOSSIL)
- sarahberlinerae, Bullaria sarahberlinerae C.J. Maury, 1917 † - (CYLICHNIDAE) (FOSSIL)
- sarahjanae, Silberlingeria sarahjanae Guex & al., 2005 † - (LONGOBARDITIDAE) (FOSSIL)
- Sarajana, Genus Sarajana P. Radoman, 1975 (HYDROBIIDAE)
- Sarama, syn of: Genus Rasama F.F. Laidlaw, 1932 (HELICARIONIDAE)
- saramagoi, Volvarina saramagoi J. Espinosa, J.A. Ortea & L. Moro, 2013 - (MARGINELLIDAE)
- Saramina, syn of: Genus Rasama F.F. Laidlaw, 1932 (HELICARIONIDAE)
- saranganica, Calocochlia saranganica J.G. Hidalgo, 1887 - (BRADYBAENIDAE)
- sarape, Bornella sarape H.W. Bertsch, 1980 - (BORNELLIDAE)
- Saraphia, Subgenus Carychium (Saraphia) A. Risso, 1826 (ELLOBIIDAE)
- Sarasinella, Genus Sarasinella Uhlig , 1905 (NEOCOMITIDAE) (FOSSIL)
- sarasini, Acrioceras sarasini Sarkar, 1955 † - (ANCYLOCERATIDAE) (FOSSIL)
- sarasini, Colchidites sarasini Rouchadze, 1933 † - syn of: Martelites sarasini (Rouchadze, 1933 †) - (ANCYLOCERATIDAE) (FOSSIL)
- sarasini, Aneitea sarasini G.J. Von Grimpe & H. Hoffmann, 1925 - (ATHORACOPHORIDAE)
- sarasini, Pseudothurmannia sarasini Sarkar, 1955 † - (CRIOCERATITIDAE) (FOSSIL)
- sarasini, Martelites sarasini (Rouchadze, 1933 †) - (HETEROCERATIDAE) (FOSSIL)
- sarasini, Taramelliceras sarasini (de Loriol, 1902 †) - (OPPELIIDAE) (FOSSIL)
- sarasini, Taramelliceras sarasini (Loriol, 1902 †) - (OPPELIIDAE) (FOSSIL)
- sarasini, Oppelia sarasini de Loriol, 1902 † - syn of: Taramelliceras sarasini (de Loriol, 1902 †) - (OPPELIIDAE) (FOSSIL)
- sarasini, Atopos sarasini W.E. Collinge, 1902 - (RATHOUISIIDAE)
- sarasini ganeshai, Acrioceras sarasini ganeshai Sarkar, 1955 † - (ANCYLOCERATIDAE) (FOSSIL)
- sarasini villoutreysi, Acrioceras sarasini villoutreysi Thomel & al., 1990 † - (ANCYLOCERATIDAE) (FOSSIL)
- sarasinorum, Hydrobioides sarasinorum G. Bollinger, 1914 - (BITHYNIIDAE)
- sarasinorum, Guamampa gloriosa sarasinorum (P.B. Sarasin & K.F. Sarasin, 1899) - (BRADYBAENIDAE)
- sarasinorum, Tylomelania sarasinorum (J.H. Kruimel, 1913) - (PACHYCHILIDAE)
- sarasinorum, Anisus sarasinorum (Bohlinger, 1914) - (PLANORBIDAE)
- sarasinorum, Melania sarasinorum J.H. Kruimel, 1913 - syn of: Tylomelania sarasinorum (J.H. Kruimel, 1913) - (THIARIDAE)
- Sarasinula, Subgenus Vaginulus (Sarasinula) G.J. Von Grimpe & H. Hoffmann, 1924 (VERONICELLIDAE)
- Sarasomia, syn of: Subgenus Vaginulus (Sarasinula) G.J. Von Grimpe & H. Hoffmann, 1924 (VERONICELLIDAE)
- sarasotaensis, Pyrazisinus sarasotaensis E.J. Petuch, 1994 † - (BATILLARIIDAE) (FOSSIL)
- sarasotaensis, Solenosteira sarasotaensis E.J. Petuch, 1994 † - (BUCCINIDAE) (FOSSIL)
- sarasotaensis, Bulla sarasotaensis E.J. Petuch, 1994 † - (BULLIDAE) (FOSSIL)
- sarasotaensis, Pyruella sarasotaensis E.J. Petuch, 1982 † - (BUSYCONIDAE) (FOSSIL)
- sarasotaensis, Conus sarasotaensis E.J. Petuch, 1994 † - (CONIDAE) (FOSSIL)
- sarasotaensis, Siphocypraea sarasotaensis E.J. Petuch, 1994 † - (CYPRAEIDAE) (FOSSIL)
- sarasotaensis, Fasciolaria sarasotaensis E.J. Petuch, 1994 † - (FASCIOLARIIDAE) (FOSSIL)
- sarasotaensis, Melongena sarasotaensis E.J. Petuch, 1994 † - (MELONGENIDAE) (FOSSIL)
- sarasotaensis, Acantholabia sarasotaensis E.J. Petuch, 1991 † - (MURICIDAE) (FOSSIL)
- sarasotaensis, Strombus sarasotaensis E.J. Petuch, 1994 † - syn of: Strombus floridanus W.C. Mansfield, 1930 † - (STROMBIDAE) (FOSSIL)
- sarasotana, Thais sarasotana E.J. Petuch, 1994 † - (MURICIDAE) (FOSSIL)
- sarasotensis, Americoliva sayana sarasotensis (E.J. Petuch & D.M. Sargent, 1986) - (OLIVIDAE)
- sarassinica, Linguella sarassinica L.S.R. Bergh, 1890 - (ARMINIDAE)
- sarasuae, Diodora sarasuae J. Espinosa, 1984 - (FISSURELLIDAE)
- sarasuae, Dermomurex sarasuae E.H. Vokes, 1992 - (MURICIDAE)
- sarasuae, Elysia sarasuae J.A. Ortea, L. Moro, G.M. Caballer & J. Espinosa, 2011 - (PLAKOBRANCHIDAE)
- sarasvati, Brachytoma sarasvati E.W. Vredenburg, 1921 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- saratogea, Lucinella saratogea T. Prime, 1865 - syn of: Sphaerium simile T. Say, 1817 - (LUCINIDAE)
- saratogensis, Matherella saratogensis (Walcott, 1886 †) - (ONYCHOCHILIDAE) (FOSSIL)
- sarawakense, Platycochlium sarawakense F.F. Laidlaw, 1950 - (STREPTAXIDAE)
- sarawakensis, Solen sarawakensis R. von Cosel, 2002 - (SOLENIDAE)
- sarcastatum, Dentalium sarcastatum G.B. I Sowerby - (DENTALIIDAE)
- sarchochilus, Leiostracus sarchochilus L. Pfeiffer, 1857 - (SIMPULOPSIDAE)
- sarcignanensis, Zebina sarcignanensis P. Lozouet, 2015 - (ZEBINIDAE)
- sarcina, Dentarene sarcina T. Iredale, 1929 - (LIOTIIDAE)
- sarcinatum, Orthoceras sarcinatum Barrande, 1860 † - syn of: Sphooceras truncatum (Barrande, 1860 †) - (ORTHOCERATIDAE) (FOSSIL)
- sarcinosa, Helicostyla sarcinosa A.E.J. Férussac, 1821 - (BRADYBAENIDAE)
- sarcinosa dictyonina, Helicostyla sarcinosa dictyonina O.F. von Möllendorff, 1898 - (BRADYBAENIDAE)
- sarcinosa negrosa, Helicostyla sarcinosa negrosa P. Bartsch, 1950 - (BRADYBAENIDAE)
- sarcinosa turgens, Helicostyla sarcinosa turgens G.P. Deshayes, 1850 - (BRADYBAENIDAE)
- sarcinula, Bathytoma sarcinula C. Hedley, 1905 - syn of: Benthofascis sarcinula (C. Hedley, 1905) - (BORSONIIDAE)
- sarcinula, Benthofascis sarcinula (C. Hedley, 1905) - (CONORBIDAE)
- sarcinulum, Teleochilus sarcinulum C. Hedley, 1905 - syn of: Benthofascis sarcinula (C. Hedley, 1905) - (RAPHITOMIDAE)
- sarcira, Opimaphora sarcira C.F. Laseron, 1958 - (TRIPHORIDAE)
- sarcira, Nototriphora sarcira (C.F. Laseron, 1954) - (TRIPHORIDAE)
- sarcira, Notosinister sarcira C.F. Laseron, 1954 - syn of: Nototriphora sarcira (C.F. Laseron, 1954) - (TRIPHORIDAE)
- sarcocheilus, Caracolus sarcocheilus (O.A.L. Mörch, 1850) - (PLEURODONTIDAE)
- sarcochilus, Leiostracus sarcochilus L. Pfeiffer, 1857 - syn of: Leiostracus sarchochilus L. Pfeiffer, 1857 - (SIMPULOPSIDAE)
- sarcochrous, Thaumastus sarcochrous H.A. Pilsbry, 1897 - (MEGASPIRIDAE)
- sarcodes, Bulimulus sarcodes L. Pfeiffer, 1846 - (BULIMULIDAE)
- sarcodes, Lyncina sarcodes J.C. Melvill, 1888 - syn of: Lyncina vitellus (C. Linnaeus, 1758) - (CYPRAEIDAE)
- sarcodes, Gibberula sarcodes (J.R. le B. Tomlin, 1917) - (CYSTISCIDAE)
- sarcodum, Calliostoma sarcodum W.H. Dall, 1927 - (CALLIOSTOMATIDAE)
- sarcophaga, Philine sarcophaga J. Price, T.M. Gosliner & Á. Valdés, 2011 - (PHILINIDAE)
- Sarcopterus, syn of: Genus Gastropteron J.F. Meckel in Kosse, 1813 (GASTROPTERIDAE)
- sarcosa, Stenoplax sarcosa W.H. Dall, 1879 - syn of: Stenoradsia conspicua (H.A. Pilsbry, 1892) - (ISCHNOCHITONIDAE)
- sarcostoma, Cerion sarcostoma H.A. Pilsbry & Vannata, 1896 - (CERIONIDAE)
- sarcostoma, Hemicycla sarcostoma (P.B. Webb & S. Berthelot, 1833) - (HELICIDAE)
- sarcostoma, Ranularia sarcostoma (L.A. Reeve, 1844) - (RANELLIDAE)
- sarcostomopsis, Eobania sarcostomopsis A. Bofill & J.B. Aguilar-Amat, 1929 - syn of: Eobania vermiculata (O.F. Müller, 1774) - (HELICIDAE)
- sarcostomus, Porphyrobaphe sarcostomus C.M.F. Ancey, 1903 - (ORTHALICIDAE)
- sarcostumum, Cymatium sarcostumum W.J. Clench & H. Turner, 1957 - syn of: Ranularia cynocephala (J.B.P.A. Lamarck, 1816) - (RANELLIDAE)
- sarcostumum, Ranularia sarcostumum W.J. Clench & H. Turner, 1957 - syn of: Ranularia cynocephala (J.B.P.A. Lamarck, 1816) - (RANELLIDAE)
- sarda, Ancilla sarda (L.A. Reeve, 1864) - (ANCILLARIIDAE)
- sarda, Chama sarda L.A. Reeve, 1847 - (CHAMIDAE)
- sarda, Caryocorbula sarda W.H. Dall, 1898 † - (CORBULIDAE) (FOSSIL)
- sarda, Splendrillia sarda R.N. Kilburn, 1988 - (DRILLIIDAE)
- sarda, Islamia sarda D. Esu, 1984 † - (HYDROBIIDAE) (FOSSIL)
- sarda, Closia sarda (L.C. Kiener, 1834) - (MARGINELLIDAE)
- sarda, Marginella sarda L.C. Kiener, 1834 - syn of: Closia sarda (L.C. Kiener, 1834) - (MARGINELLIDAE)
- sardae, Tetrentodon sardae C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- sardalabiata, Thersites sardalabiata J.C. Cox, 1871 - (CAMAENIDAE)
- sardea, Alvania sardea A. Risso, 1826 - syn of: Alvania sardoa A. Risso, 1826 - (RISSOIDAE)
- sardellae, Cycloscala sardellae E.F. Garcia, 2004 - (EPITONIIDAE)
- sardesoni, Grandostoma sardesoni J. Perner, 1903 † - syn of: Grandostoma bohemica (J. Perner, 1903 †) - (BUCANIIDAE) (FOSSIL)
- sardesoni, Vanuxemia sardesoni Ulrich, 1894 † - (CYRTODONTIDAE) (FOSSIL)
- sardica, Helix sardica E. Caziot, 1902 - syn of: Marmorana serpentina isarae (M. Paulucci, 1882) - (HELICIDAE)
- sardiniana, Cardiolinka sardiniana Kríž in Kríž & Serpagli, 1993 † - (CARDIOLIDAE) (FOSSIL)
- sardinianum, Caecum sardinianum L. de Folin, 1870 - syn of: Caecum clarkii P.P. Carpenter, 1859 - (CAECIDAE)
- sardiniensis, Xerotricha sardiniensis C. Porro, 1838 - syn of: Xerotricha conspurcata (J.P.R. Draparnaud, 1801) - (HYGROMIIDAE)
- sardoa, Platyla sardoa S. Cianfanelli, E. Talenti, M. Bodon & G. Manganelli, 2000 - (ACICULIDAE)
- sardoa, Granopupa sardoa F.J. Cantraine, 1840 - syn of: Granopupa granum (J.P.R. Draparnaud, 1801) - (CHONDRINIDAE)
- Sardoa, syn of: Subgenus Cochlostoma (Turritus) C.A. Westerlund, 1883 (COCHLOSTOMATIDAE)
- sardoa, Theba sardoa B. Ziegler, 1830 - syn of: Theba pisana (O.F. Müller, 1774) - (HELICIDAE)
- sardoa, Daudebardia brevipes sardoa (A. Issel, 1873) - (OXYCHILIDAE)
- sardoa, Alvania sardoa A. Risso, 1826 - (RISSOIDAE)
- sardoa, Albea sardoa W. Kobelt, 1888 - syn of: Sphincterochila candidissima (J.P.R. Draparnaud, 1801) - (SPHINCTEROCHILIDAE)
- sardodes, Bulimulus sardodes L. Pfeiffer, 1846 - syn of: Bulimulus sarcodes L. Pfeiffer, 1846 - (BULIMULIDAE)
- Sardohoratia, Genus Sardohoratia G. Manganelli, M. Bodon & al., 1998 (HYDROBIIDAE)
- Sardohoratio, syn of: Genus Sardohoratia G. Manganelli, M. Bodon & al., 1998 (HYDROBIIDAE)
- sardonica, Semele sardonica W.H. Dall, 1890 † - (SEMELIDAE) (FOSSIL)
- sardonius, Tyrrheniberus sardonius (E.C. Von Martens, 1884) - (HELICIDAE)
- sardonyx, Mesophora sardonyx C.F. Laseron, 1958 - syn of: Costatophora iniqua (F.P. Jousseaume, 1898) - (TRIPHORIDAE)
- Sardopaladilhia, Genus Sardopaladilhia G. Manganelli, M. Bodon & F.L. Giusti, 1998 (MOITESSIERIIDAE)
- Sardopoiretia, Genus Sardopoiretia M. Bodon, G. Nardi, A. Braccia & S. Cianfanelli, 2010 (OLEACINIDAE)
- sardoum, Galtoceras sardoum Serpagli & Gnoli, 1977 † - (ACLEISTOCERATIDAE) (FOSSIL)
- sardoum, Cerithium sardoum F.J. Cantraine, 1835 - syn of: Potamides conicus (H.M.D. de Blainville, 1829) - (CERITHIIDAE)
- sardoum, Cochlostoma sardoum C.A. Westerlund, 1890 - (COCHLOSTOMATIDAE)
- sardous, Theodoxus fluviatilis sardous (K.T. Menke, 1830) - (NERITIDAE)
- Sardovitrina, Genus Sardovitrina G. Manganelli & F.L. Giusti, 2005 (VITRINIDAE)
- sardum, Deroceras sardum (H.R. Simroth, 1886) - (AGRIOLIMACIDAE)
- sardus, Conus sardus J.H.F. Link, 1807 - (CONIDAE)
- sarena, Vertigo sarena P.V. Gredler, 1856 - syn of: Isthmia pygmaea (J.P.R. Draparnaud, 1801) - (VERTIGINIDAE)
- Sarepta, Genus Sarepta A. Adams, 1860 (SAREPTIDAE)
- SAREPTIDAE Stoliczka, 1870 - Family (BIVALVIA-PROTOBRANCHIA [Subclass]-NUCULIDA [Order]-SAREPTOIDEA [Superfamily])
- Sargaella, Genus Sargaella Aksarina, 1978 (STENOTHECOIDA INCERTAE SEDIS) (FOSSIL)
- sargalensis, Strophostylus sargalensis Reed, 1944 † - (PLATYCERATIDAE) (FOSSIL)
- Sargana, Genus Sargana Stephenson, 1923 (SARGANIDAE) (FOSSIL)
- SARGANIDAE Stephenson, 1923 - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-NEOGASTROPODA [Order]-SARGANOIDEA [Superfamily]) (FOSSIL)
- sargassi, Fiona sargassi R.A. Philippi, 1836 - syn of: Fiona pinnata (J.F. von Eschscholtz, 1831) - (FIONIDAE)
- sargassicola, Spurilla sargassicola L.S.R. Bergh, 1871 - (AEOLIDIIDAE)
- sargassicola, Corambe sargassicola L.S.R. Bergh, 1871 - syn of: Corambe obscura (A.E. Verrill, 1870) - (CORAMBIDAE)
- sargassicola, Facelina sargassicola Kröyer in L.S.R. Bergh, 1861, 1860 - (FACELINIDAE)
- sargenti, Conasprella sargenti (E.J. Petuch, 2013) - (CONIDAE)
- sargenti, Jaspidiconus sargenti E.J. Petuch, 2013 - syn of: Conasprella sargenti (E.J. Petuch, 2013) - (CONIDAE)
- sargenti, Somatogyrus sargenti H.A. Pilsbry, 1895 - (LITHOGLYPHIDAE)
- sargenti, Oliva sargenti E.J. Petuch, 1987 - (OLIVIDAE)
- sargenti, Chondropoma sargenti Torré - (POMATIIDAE)
- sargenti, Systrophia sargenti (H.A. Pilsbry, 1900) - (SCOLODONTIDAE)
- sargenti, Pisidium sargenti V. Sterki, 1901 - syn of: Pisidium adamsi W. Stimpson, 1851 - (SPHAERIIDAE)
- sargentiana, Satsuma sargentiana (H.A. Pilsbry, 1901) - (CAMAENIDAE)
- sargentiana, Patera sargentiana C.W. Johnson & H.A. Pilsbry, 1892 - (POLYGYRIDAE)
- sargi, Mesembrinus sargi J.C.H. Crosse & P.H. Fischer, 1875 - (BULIMULIDAE)
- sargi, Helix sargi J.C.H. Crosse & P.H. Fischer, 1872 - syn of: Miraverellia sargi (J.C.H. Crosse & P.H. Fischer, 1872) - (HELICIDAE)
- sargi, Potamanax sargi (J.C.H. Crosse & P.H. Fischer, 1875) - (PACHYCHILIDAE)
- sargi, Ctenopoma sargi P.H. Fischer & J.C.H. Crosse, 1890 - syn of: Choanopoma radiosum (P.M.A. Morelet, 1849) - (POMATIIDAE)
- sargi, Streptostyla sargi J.C.H. Crosse & P.H. Fischer, 1869 - (SPIRAXIDAE)
- sargi, Subulina sargi J.C.H. Crosse & P. Fischer, 1877 - (SUBULINIDAE)
- sargi, Melania sargi J.C.H. Crosse & P.H. Fischer, 1875 - syn of: Potamanax sargi (J.C.H. Crosse & P.H. Fischer, 1875) - (THIARIDAE)
- sargi, Brachypodella morini sargi (E.C. Von Martens, 1897) - (UROCOPTIDAE)
- sargi, Miraverellia sargi (J.C.H. Crosse & P.H. Fischer, 1872) - (XANTHONYCHIDAE)
- sargi motaguae, Mesembrinus sargi motaguae E.C. Von Martens, 1893 - (BULIMULIDAE)
- sargklofak, Hoploscaphites sargklofak Landman, J. Kennedy & Larson, 2015 † - (SCAPHITIDAE) (FOSSIL)
- sarhoensis, Pojetaia sarhoensis D. Geyer & L.H. Streng, 1998 † - (NUCULIDA (UNASSIGNED)) (FOSSIL)
- sari, Gibbula sari E. Fischer-Piette, 1942 - (TROCHIDAE)
- sariae, Zonites sariae F. Riedel, 1985 - (ZONITIDAE)
- saridalensis, Stagnicola saridalensis A. Mozley, 1934 - (LYMNAEIDAE)
- Sarika, Genus Sarika H.H. Godwin-Austen, 1907 (ARIOPHANTIDAE)
- sarinae, Fusolatirus sarinae (M.A. Snyder, 2003) - (FASCIOLARIIDAE)
- sarinoae, Mitra sarinoae G.T. Poppe, 2008 - (MITRIDAE)
- sarissa, Aclis sarissa R.B. Watson, 1881 - (ACLIDIDAE)
- sarissa, Zaclys sarissa (R. Murdoch, 1905) - (CERITHIOPSIDAE)
- sarissa, Cerithiopsis sarissa R. Murdoch, 1905 - syn of: Zaclys sarissa (R. Murdoch, 1905) - (CERITHIOPSIDAE)
- sarissa, Zaptyx hyperoptyx sarissa (H.A. Pilsbry, 1900) - (CLAUSILIIDAE)
- sarissa, Melanella sarissa (R.B. Watson, 1883) - (EULIMIDAE)
- sarissa, Inella sarissa (W.H. Dall, 1889) - (TRIPHORIDAE)
- sarissa, Alcithoe sarissa R. Tate, 1889 † - (VOLUTIDAE) (FOSSIL)
- sarissiformis, Eulima sarissiformis (H.A. Pilsbry & C.W. Johnson, 1917 †) - (EULIMIDAE) (FOSSIL)
- sarissiformis, Strombiformis sarissiformis H.A. Pilsbry & C.W. Johnson, 1917 † - syn of: Eulima sarissiformis (H.A. Pilsbry & C.W. Johnson, 1917 †) - (EULIMIDAE) (FOSSIL)
- sarissophorus, Fusus sarissophorus R.B. Watson, 1882 - syn of: Fulgurofusus sarissophorus (R.B. Watson, 1882) - (FASCIOLARIIDAE)
- sarissophorus, Fulgurofusus sarissophorus (R.B. Watson, 1882) - (TURBINELLIDAE)
- Sarkachiton, Genus Sarkachiton Dzik, 1994 (PALEOLORICATA (UNASSIGNED)) (FOSSIL)
- Sarkanella, Genus Sarkanella Hornύ , 1997 (CARCASSONNELLIDAE) (FOSSIL)
- sarkanyi, Alopia lischkeana sarkanyi M. Szekeres, 2007 - (CLAUSILIIDAE)
- sarkari, Menuthiocrioceras sarkari M. Collignon, 1962 † - (CRIOCERATITIDAE) (FOSSIL)
- Sarkariceras, Genus Sarkariceras J.J. Vermeulen, 2006 (ANCYLOCERATIDAE) (FOSSIL)
- Sarkhia, Genus Sarkhia P. Glφer & V.M. Peic, 2012 (HYDROBIIDAE)
- Sarmates, Subgenus Calliostoma (Sarmates) Kolesnikov, 1939 (CALLIOSTOMATIDAE) (FOSSIL)
- sarmatica, Constricta sarmatica H. Nordsieck, 2014 † - (CLAUSILIIDAE) (FOSSIL)
- sarmatica, Triptychia leobersdorfensis sarmatica Kókay, 2006 † - (FILHOLIIDAE) (FOSSIL)
- sarmatica, Hauffenia sarmatica (Papp, 1954 †) - (HYDROBIIDAE) (FOSSIL)
- sarmatica, Staja sarmatica (E. Jekelius, 1944 †) - (HYDROBIIDAE) (FOSSIL)
- sarmatica, Lymnaea stagnalis sarmatica Kókay, 2006 † - (LYMNAEIDAE) (FOSSIL)
- sarmatica, Moesia sarmatica E. Jekelius, 1944 † - (PYRAMIDELLIDAE) (FOSSIL)
- sarmatica, Mohrensternia sarmatica Friedberg, 1923 † - (RISSOIDAE) (FOSSIL)
- sarmatica depressa, Staja sarmatica depressa (E. Jekelius, 1944 †) - (HYDROBIIDAE) (FOSSIL)
- Sarmaticardium, Genus Sarmaticardium Bagdasaryan, 1978 (CARDIIDA (UNASSIGNED)) (FOSSIL)
- sarmaticum, Cardium sarmaticum Barbot in Kolenikov, 1935 † - (CARDIIDAE) (FOSSIL)
- sarmaticus, Agalactochilus sarmaticus (Gaál, 1910) † - (HELICIDAE) (FOSSIL)
- sarmaticus, Theodoxus sarmaticus (W.A. Lindholm, 1901) - (NERITIDAE)
- sarmaticus, Turbo sarmaticus C. Linnaeus, 1758 - (TURBINIDAE)
- Sarmaticus, syn of: Genus Turbo C. Linnaeus, 1758 (TURBINIDAE)
- Sarmatidonax, Genus Sarmatidonax Bagdasarjan, 1986 (CARDIIDA (UNASSIGNED)) (FOSSIL)
- Sarmatimactra, Genus Sarmatimactra Korobkov, 1954 (CARDIIDA (UNASSIGNED)) (FOSSIL)
- sarmatius, Theodoxus sarmatius W.A. Lindholm, 1901 - syn of: Theodoxus sarmaticus (W.A. Lindholm, 1901) - (NERITIDAE)
- Sarmaturbo, Genus Sarmaturbo Powell, 1938 (TURBINIDAE)
- sarmensis, Benedictia pulchella sarmensis T.Y. Sitnikova, 1987 - (LITHOGLYPHIDAE)
- sarmentosus, Anatrophon sarmentosus (C. Hedley & W.L. May, 1908) - (MURICIDAE)
- sarmientoi, Mitra sarmientoi G.T. Poppe, 2008 - (MITRIDAE)
- sarmizegethusae, Campylaea sarmizegethusae M. von Kimakowicz, 1890 - syn of: Faustina faustina (E.A. Rossmässler, 1835) - (HELICIDAE)
- sarmizegetusae, Lehmannia sarmizegetusae A.V. Grossu, 1970 - (LIMACIDAE)
- sarnensis, Limax sarnensis Hein & B. Nitz, 2009 - syn of: Limax alpinus A.E.J. Férussac, 1822 - (LIMACIDAE)
- Sarnia, Genus Sarnia H. Adams & A. Adams, 1855 (ELLOBIIDAE)
- sarniensis, Trochus sarniensis A.M. Norman, 1888 - syn of: Gibbula umbilicalis (E.M. Da Costa, 1778) - (TROCHIDAE)
- sarniensis, Venus sarniensis W. Turton, 1822 - syn of: Polititapes rhomboides (T. Pennant, 1777) - (VENERIDAE)
- sarodranensis, Tropidophora sarodranensis E. Fischer-Piette, F. Blanc & F. Salvat, 1969 - (POMATIIDAE)
- saronica, Hermaea saronica T.E. Thompson, 1988 - syn of: Placida saronica (T.E. Thompson, 1988) - (HERMAEIDAE)
- saronica, Placida saronica (T.E. Thompson, 1988) - (LIMAPONTIIDAE)
- sarratoga, Lucinella sarratoga S.C.T. Hanley, 1843 - syn of: Sphaerium simile T. Say, 1817 - (LUCINIDAE)
- sarratogea, Lucinella sarratogea J.B.P.A. Lamarck, 1818 - syn of: Sphaerium simile T. Say, 1817 - (LUCINIDAE)
- sarrauti, Glabrocingulum sarrauti (Mansuy, 1912 †) - (GOSSELETINIDAE) (FOSSIL)
- sarrauti, Ptychomphalus sarrauti Mansuy, 1912 † - syn of: Glabrocingulum sarrauti (Mansuy, 1912 †) - (PTYCHOMPHALIDAE) (FOSSIL)
- sarriansense, Bythiospeum sarriansense H. Girardi, 2009 - (HYDROBIIDAE)
- sarriensis, Monacha sarriensis Martorell in G. Servain, 1880 - syn of: Monacha cartusiana (O.F. Müller, 1774) - (HYGROMIIDAE)
- sarrita, Georissa sarrita (W.H. Benson, 1851) - (HYDROCENIDAE)
- sarroniensis, Nucellopsis plicatilis sarroniensis (L.L.H. Carez, 1879) - (MURICIDAE)
- sarsi, Aclis sarsi P. Dautzenberg & H. Fischer, 1912 - (ACLIDIDAE)
- sarsi, Sipho sarsi G.O. Sars, 1878 - syn of: Turrisipho moebii (R.W. Dunker & A. Metzger, 1874) - (BUCCINIDAE)
- sarsi, Spirotropis sarsi A. Warén, 1975 - syn of: Spirotropis confusa (G. Seguenza, 1880) - (DRILLIIDAE)
- sarsi, Eulima sarsi K.J. Bush, 1909 - (EULIMIDAE)
- sarsi, Flabellina sarsi H.B.S. Friele, 1902 - syn of: Flabellina nobilis (A.E. Verrill, 1880) - (FLABELLINIDAE)
- sarsi, Leptochiton sarsi P. Kaas, 1981 - (LEPTOCHITONIDAE)
- sarsi, Dorymenia sarsi J. Koren & D.C. Danielssen, 1877 - syn of: Dorymenia sarsii (J. Koren & D.C. Danielssen, 1877) - (PRONEOMENIIDAE)
- sarsi, Chrysallida sarsi F. Nordsieck, 1972 - (PYRAMIDELLIDAE)
- sarsi, Simrothiella sarsi J. Koren & D.C. Danielssen, 1877 - syn of: Dorymenia sarsii (J. Koren & D.C. Danielssen, 1877) - (SIMROTHIELLIDAE)
- sarsiae, Doto sarsiae C.C. Morrow, J.P. Thorpe & B.E. Picton, 1992 - (DOTIDAE)
- sarsianum, Trachysma sarsianum K.H.J. Thiele, 1912 - syn of: Torellia delicata (R.A. Philippi, 1844) - (PENDROMIDAE)
- sarsii, Aporrhais sarsii W. Kobelt, 1908 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- sarsii, Cetoconcha sarsii (E.A. Smith, 1885) - (CETOCONCHIDAE)
- sarsii, Balea sarsii L. Pfeiffer, 1847 - (CLAUSILIIDAE)
- sarsii, Cylichna sarsii R.A. Philippi, 1850 - (CYLICHNIDAE)
- sarsii, Gregorioiscala sarsii (W. Kobelt, 1903) - (EPITONIIDAE)
- sarsii, Notolimea sarsii S.L. Lovén, 1846 - syn of: Limea crassa (E. Forbes, 1844) - (LIMIDAE)
- sarsii, Limea sarsii S.L. Lovén, 1846 - syn of: Limea crassa (E. Forbes, 1844) - (LIMIDAE)
- sarsii, Lima sarsii S.L. Lovén, 1846 - syn of: Limea crassa (E. Forbes, 1844) - (LIMIDAE)
- sarsii, Bela sarsii A.E. Verrill, 1880 - syn of: Oenopota impressa (O.A.L. Mörch, 1869) - (MANGELIIDAE)
- sarsii, Trophon sarsii W. Wood, 1872 - syn of: Turrisipho moebii (R.W. Dunker & A. Metzger, 1874) - (MURICIDAE)
- sarsii, Dorymenia sarsii (J. Koren & D.C. Danielssen, 1877) - (PRONEOMENIIDAE)
- sarsii, Pusillina sarsii (S.L. Lovén, 1846) - (RISSOIDAE)
- sarsii, Rissoa sarsii S.L. Lovén, 1846 - syn of: Pusillina sarsii (S.L. Lovén, 1846) - (RISSOIDAE)
- sarsii, Simrothiella sarsii J. Koren & D.C. Danielssen, 1877 - syn of: Dorymenia sarsii (J. Koren & D.C. Danielssen, 1877) - (SIMROTHIELLIDAE)
- sarsii, Oxyloma sarsii (B. Esmark & Z.A. Hoyer, 1886) - (SUCCINEIDAE)
- sarsii, Thyasira sarsii (R.A. Philippi, 1845) - (THYASIRIDAE)
- sarsii crassa, Sipho sarsii crassa F.W. Harmer † - syn of: Turrisipho moebii (R.W. Dunker & A. Metzger, 1874) - (BUCCINIDAE) (FOSSIL)
- sarsii minor, Aporrhais sarsii minor T.A. de M. Monterosato - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- sarsii palmipes, Aporrhais sarsii palmipes T.A. de M. Monterosato - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- sartangensis, Cigarella sartangensis (Muromtseva & Kusnezov, 1984 †) - (ATOMODESMATIDAE) (FOSSIL)
- sarthacense, Gentoniceras sarthacense (C.É. Bayle, 1878 †) - (ACANTHOCERATIDAE) (FOSSIL)
- sarthacense, Cerithiomorpha sarthacense (A.V.M.D. D'Orbigny, 1847 †) - (CERITHIOIDEA (UNASSIGNED)) (FOSSIL)
- sarthacensis, Pterodonta sarthacensis H.A. Kollmann, 2005 † - (TYLOSTOMATIDAE) (FOSSIL)
- sarthinus, Trochus sarthinus d'Orbigny, 1842 † - (TROCHIDAE) (FOSSIL)
- sartii, Phasmoconus sartii (W. Korn, H.J. Niederhöfer & M. Blöcher, 2002) - (CONIDAE)
- sartonoi, Parodostomia sartonoi E. Robba, 2013 † - (PYRAMIDELLIDAE) (FOSSIL)
- sartorei, Synthopsis sartorei A. Cecalupo & I. Perugia, 2012 - (CERITHIOPSIDAE)
- sartorii, Jujubinus sartorii A. Aradas - syn of: Jujubinus striatus depictus (G.P. Deshayes, 1835) - (TROCHIDAE)
- sartoriusi, Calliostoma sartoriusi C. Gemmellaro, 1911 † - (CALLIOSTOMATIDAE) (FOSSIL)
- sartousii, Ancyloceras sartousii Astier, 1851 † - syn of: Protacrioceras sartousii (Astier, 1851 †) - (ANCYLOCERATIDAE) (FOSSIL)
- sartousii, Protacrioceras sartousii (Astier, 1851 †) - (EMERICICERATIDAE) (FOSSIL)
- sarydalchaensis, Oriostoma sarydalchaensis Gubanov & al., 1995 † - (ORIOSTOMATIDAE) (FOSSIL)
- sarysuense, Cymatoceras sarysuense Shimansky, 1975 † - (CYMATOCERATIDAE) (FOSSIL)
- sasabe, Sonorella sasabe E. Naranjo-Garcia, 1989 - (HELMINTHOGLYPTIDAE)
- sasaensis, Barcania sasaensis R.A.M. Brandt, 1956 - (CLAUSILIIDAE)
- sasagensis, Odostomia sasagensis S. Nomura, 1939 † - (PYRAMIDELLIDAE) (FOSSIL)
- sasai, Minolia sasai Y. Otuka, 1934 - (SOLARIELLIDAE)
- Sasakia, syn of: Genus Sasakina B. Rensch, 1930 (DYAKIIDAE)
- Sasakiconcha, Genus Sasakiconcha D.L. Geiger, 2006 (ANATOMIDAE)
- Sasakiela, Genus Sasakiela Bandel & Frύda, 2004 (PORCELLIIDAE) (FOSSIL)
- sasakii, Aviculopecten sasakii Murata, 1964 † - syn of: Hayasakapecten sasakii (Murata, 1964 †) - (AVICULOPECTINIDAE) (FOSSIL)
- sasakii, Bathypolypus sasakii C.W. Robson, 1927 - syn of: Bathypolypus arcticus (V. Prosch, 1849) - (BATHYPOLYPODIDAE)
- sasakii, Ancistrolepis sasakii (T. Habe & K. Itô, 1970) - (BUCCINIDAE)
- sasakii, Margarites sasakii (A. Kaim & al., 2009 †) - (MARGARITIDAE) (FOSSIL)
- sasakii, Paralepetopsis sasakii A. Warén & P. Bouchet, 2009 - (NEOLEPETOPSIDAE)
- sasakii, Octopus sasakii Iw. Taki, 1942 - (OCTOPODIDAE)
- sasakii, Hayasakapecten sasakii (Murata, 1964 †) - (PTERIIDA (UNASSIGNED)) (FOSSIL)
- Sasakina, Genus Sasakina B. Rensch, 1930 (DYAKIIDAE)
- Sasakinella, Genus Sasakinella Is. Taki, 1964 (OCTOPODIDAE)
- Sasakiopus, Genus Sasakiopus E.M. Jorgensen, J.M. Strugnell & L. Allcock, 2010 (ENTEROCTOPODIDAE)
- Sasamocochlis, Genus Sasamocochlis J. Grόndel, 1980 (NEWTONIELLIDAE)
- sasamorii, Sasamocochlis sasamorii (J.T. Kuroda, 1943) - (NEWTONIELLIDAE)
- sasamorii, Ptychatractus sasamorii J.T. Kuroda, 1943 - syn of: Ptychatractus occidentalis sasamorii (J.T. Kuroda, 1943) - (PTYCHATRACTIDAE)
- sasamorii, Ptychatractus occidentalis sasamorii (J.T. Kuroda, 1943) - (PTYCHATRACTIDAE)
- Sasea, syn of: Genus Lasaea T. Brown, 1827 (LASAEIDAE)
- saskai, Bruggenina saskai (H. Knipper, 1956) - (ACHATINIDAE)
- saskatchewanensis, Inoceramus saskatchewanensis Warren, 1934 † - (INOCERAMIDAE) (FOSSIL)
- saskatchewanensis, Pecten saskatchewanensis Warren, 1934 † - (PECTINIDAE) (FOSSIL)
- saskiae, Herminespina saskiae DeVries & G.J. Vermeij, 1997 † - (MURICIDAE) (FOSSIL)
- sassariensis, Cochlodina kuesteri sassariensis H. Nordsieck, 1969 - (CLAUSILIIDAE)
- sassenae, Gibberula sassenae J.A. Ortea, 2015 - (CYSTISCIDAE)
- sassenfjordensis, Sassenfjordia sassenfjordensis Kaim, Hryniewic, Little & Nakrem, 2017 † - (CAENOGASTROPODA (unassigned)) (FOSSIL)
- Sassenfjordia, Genus Sassenfjordia Kaim, Hryniewic, Little & Nakrem, 2017 (CAENOGASTROPODA (unassigned)) (FOSSIL)
- sassetta, Cerithiopsis sassetta W.H. Dall, 1919 - (CERITHIOPSIDAE)
- Sassia, Genus Sassia L.M.D. Bellardi, 1873 (RANELLIDAE)
- sassykensis, Artinskia sassykensis Tumanskaya, 1939 † - (MEDLICOTTIIDAE) (FOSSIL)
- sasykensis, Pyrgula sasykensis Roshka, 1973 † - (HYDROBIIDAE) (FOSSIL)
- sasykensis panae, Pyrgula sasykensis panae Roshka, 1973 † - (HYDROBIIDAE) (FOSSIL)
- Satagembryon, syn of: Genus Bothriembryon H.A. Pilsbry, 1894 (BOTHRIEMBRYONTIDAE)
- satanaensis, Thysanophora satanaensis (L. Pfeiffer, 1854) - (THYSANOPHORIDAE)
- satanicus, Fusiguraleus satanicus (A.G. Beu, 1965 †) - (MANGELIIDAE) (FOSSIL)
- satanomisakiensis, Diplommatina satanomisakiensis T. Habe, 1953 - (DIPLOMMATINIDAE)
- Sataria, syn of: Subgenus Bithynia (Digoniostoma) T.N. Annandale, 1920 (BITHYNIIDAE)
- satex, Trigonulina satex (Gardner 1927) † - (VERTICORDIIDAE) (FOSSIL)
- sathon, Notogillia sathon F.G. Thompson, 1969 - (HYDROBIIDAE)
- sathon, Slava sathon Kríž, 1985 † - (SLAVIDAE) (FOSSIL)
- sathos, Pyrgulopsis sathos R. Hershler, 1998 - (HYDROBIIDAE)
- sathra, Cancellaria sathra W.P. Woodring, 1973 † - (CANCELLARIIDAE) (FOSSIL)
- satiata, Zoila rosselli satiata F.Jr. Lorenz, 2002 - (CYPRAEIDAE)
- satiata edingeri, Zoila rosselli satiata edingeri L. Raybaudi Massilia, 1990 - (CYPRAEIDAE)
- Satiella, Genus Satiella H.H. Godwin-Austen, 1908 (ARIOPHANTIDAE)
- satillaensis, Unio satillaensis I. Lea, 1858 - syn of: Elliptio downiei I. Lea, 1858 - (UNIONIDAE)
- satillensis, Potamides satillensis T.H. Aldrich, 1911 † - (POTAMIDIDAE) (FOSSIL)
- satipoensis, Thaumastus robertsi satipoensis H.A. Pilsbry, 1944 - (MEGASPIRIDAE)
- satisnodosa, Cerithiopsis satisnodosa E. Rolán & R. Fernández-Garcés, 2010 - (CERITHIOPSIDAE)
- satistriata, Pyrgulina satistriata Peñas & Rolán, 2017 - (PYRAMIDELLIDAE)
- sativa, Anadara sativa (F.R. Bernard, Y.Y. Cai & F. Morton, 1993) - (ARCIDAE)
- sativa, Helix sativa B. Ziegler in E.A. Rossmässler, 1835 - syn of: Faustina faustina (E.A. Rossmässler, 1835) - (HELICIDAE)
- Satogembryon, syn of: Genus Bothriembryon H.A. Pilsbry, 1894 (BOTHRIEMBRYONTIDAE)
- satoi, Chlamys satoi Yokoyama, 1928 † - (PECTINIDAE) (FOSSIL)
- satoi, Nipponopholas satoi K. Okamoto & T. Habe, 1987 - (PHOLADIDAE)
- satomii, Bittium satomii (M. Yokoyama, 1924 †) - (CERITHIIDAE) (FOSSIL)
- satomii, Cerithiopsis satomii M. Yokoyama, 1924 † - (CERITHIOPSIDAE) (FOSSIL)
- satondae, Discrevinia satondae Alhejoj, Bandel & Al-Najjar, 2016 - (PICKWORTHIIDAE)
- satondae, Vanikoro satondae K. Bandel & T. Kowalke, 1997 - (VANIKORIDAE)
- Satondella, Genus Satondella K. Bandel, 1998 (SCISSURELLIDAE)
- satorium, Monilea satorium (G.P. Deshayes, 1843) - (TROCHIDAE)
- satowi, Anadara satowi (R.W. Dunker, 1882) - (ARCIDAE)
- satowi, Scapharca satowi R.W. Dunker, 1882 - syn of: Anadara satowi (R.W. Dunker, 1882) - (ARCIDAE)
- satowi, Colombiceras satowi Shimizu, 1931 † - (DESHAYESITIDAE) (FOSSIL)
- satowi castellata, Anadara satowi castellata M. Yokoyama, 1923 † - (ARCIDAE) (FOSSIL)
- satparaensis, Corbicula satparaensis H.B. Preston, 1914 - syn of: Meretrix casta (J.F. Gmelin, 1791) - (CYRENIDAE)
- satparaensis, Transkeia satparaensis (H.B. Preston, 1915) - (UNGULINIDAE)
- satparaensis, Sunetta satparaensis H.B. Preston, 1914 - syn of: Circe scripta (C. Linnaeus, 1758) - (VENERIDAE)
- satparanica, Pupilla satparanica B.M. Pokryszko, K. Auffenberg & al., 2009 - (PUPILLIDAE)
- satrae, Cecina satrae L.A. Prozorova, 1996 - (POMATIOPSIDAE)
- satrapius, Trochus satrapius H. von Maltzan - (TROCHIDAE)
- satricensis, Delima pachystoma satricensis H. Nordsieck, 1969 - (CLAUSILIIDAE)
- satsopensis, Bathymodiolus satsopensis S. Kiel & K. Amano, 2013 † - (MYTILIDAE) (FOSSIL)
- satsubana, Angustassiminea satsubana (T. Habe, 1942) - (ASSIMINEIDAE)
- Satsuma, Genus Satsuma A. Adams, 1868 (CAMAENIDAE)
- satsuma, Satsuma japonica satsuma H.A. Pilsbry, 1900 - (CAMAENIDAE)
- satsumae, Pusia cavea satsumae (W.H. Dall, 1926) - (COSTELLARIIDAE)
- satsumaensis, Chryseofusus satsumaensis (R. Hadorn & M. Chino, 2005) - (FASCIOLARIIDAE)
- satsumaensis, Fusinus satsumaensis R. Hadorn & M. Chino, 2005 - syn of: Chryseofusus satsumaensis (R. Hadorn & M. Chino, 2005) - (FASCIOLARIIDAE)
- satsumana, Angustassiminea satsumana (T. Habe, 1942) - (ASSIMINEIDAE)
- satsumana, Helicarion satsumana Y. Hirase, 1908 - (HELICARIONIDAE)
- satsumana, Helicarion subcrenulata satsumana H.A. Pilsbry & Y. Hirase, 1908 - (HELICARIONIDAE)
- satsumanus, Chamalycaeus satsumanus (H.A. Pilsbry, 1902) - (CYCLOPHORIDAE)
- satsumanus awaensis, Chamalycaeus satsumanus awaensis (H.A. Pilsbry & Y. Hirase, 1904) - (CYCLOPHORIDAE)
- satsumanus kiiensis, Chamalycaeus satsumanus kiiensis J.T. Kuroda - (CYCLOPHORIDAE)
- satsumanus okiensis, Chamalycaeus satsumanus okiensis J.T. Kuroda - (CYCLOPHORIDAE)
- satsumanus tanegashimae, Chamalycaeus satsumanus tanegashimae H.A. Pilsbry, 1902 - (CYCLOPHORIDAE)
- satsumense, Lamellaxis satsumense H.A. Pilsbry, 1906 - (SUBULINIDAE)
- sattaraensis, Glessula sattaraensis (S.C.T. Hanley & W. Theobald, 1874) - (SUBULINIDAE)
- sattleri, Nautilus sattleri Krenkel, 1910 † - syn of: Paracenoceras sattleri (Krenkel, 1910 †) - (NAUTILIDAE) (FOSSIL)
- sattleri, Paracenoceras sattleri (Krenkel, 1910 †) - (PARACENOCERATIDAE) (FOSSIL)
- sattmanni, Montenegrina sattmanni H. Nordsieck, 1988 - syn of: Montenegrina hiltrudae sattmanni H. Nordsieck, 1988 - (CLAUSILIIDAE)
- sattmanni, Montenegrina hiltrudae sattmanni H. Nordsieck, 1988 - (CLAUSILIIDAE)
- sattmanni, Helicigona sattmanni P. Subai, 1995 - (HELICIDAE)
- sattmanni, Eutheba emigrata sattmanni B. Hausdorf, 1996 - (HYGROMIIDAE)
- sattmanni, Retinella sattmanni F. Riedel, 1990 - (ZONITIDAE)
- sattmanni costulata, Montenegrina sattmanni costulata Z. Eröss & M. Szekeres, 2006 - syn of: Montenegrina hiltrudae costulata Z. Eröss & M. Szekeres, 2006 - (CLAUSILIIDAE)
- satumana, Angustassiminea satumana (T. Habe, 1942) - (ASSIMINEIDAE)
- satura, Neptunea satura T. Martyn, 1784 - syn of: Neptunea ventricosa (J.F. Gmelin, 1791) - (BUCCINIDAE)
- satura, Delima binotata satura (E.A. Rossmässler, 1836) - (CLAUSILIIDAE)
- satura, Odostomia satura P.P. Carpenter, 1864 - (PYRAMIDELLIDAE)
- satura, Lampsilis satura I. Lea, 1852 - (UNIONIDAE)
- satura elongata, Neptunea satura elongata P. Löyning, 1932 - syn of: Neptunea borealis (R.A. Philippi, 1850) - (BUCCINIDAE)
- satura polycostata, Neptunea satura polycostata Y.I. Galkin & O.A. Scarlato, 1955 - syn of: Neptunea polycostata Y.I. Galkin & O.A. Scarlato, 1955 - (BUCCINIDAE)
- saturalis, Delima saturalis L. Pfeiffer, 1841 - syn of: Delima latilabris (J.A. Wagner, 1829) - (CLAUSILIIDAE)
- saturata, Limicolaria saturata E.A. Smith, 1895 - (ACHATINIDAE)
- saturata, Fruticicola saturata W.A. Lindholm, 1926 - syn of: Fruticicola bilaticincta (E.C. Von Martens, 1882) - (BRADYBAENIDAE)
- saturata, Talparia talpa saturata (P. Dautzenberg, 1903) - (CYPRAEIDAE)
- saturata, Fusceulima saturata de Souza & A. Pimenta, 2014 - (EULIMIDAE)
- saturata, Fruticola saturata W.A. Lindholm, 1926 - syn of: Fruticicola bilaticincta (E.C. Von Martens, 1882) - (HYGROMIIDAE)
- saturata, Nerita saturata F.W. Hutton, 1884 - syn of: Nerita melanotragus E.A. Smith, 1884 - (NERITIDAE)
- saturata, Oleacina saturata (J. Gundlach in L. Pfeiffer, 1857) - (OLEACINIDAE)
- saturata, Miniaceoliva miniacea saturata (P. Dautzenberg, 1927) - (OLIVIDAE)
- saturata, Tropidophora alluaudi saturata P. Dautzenberg, 1894 - (POMATIIDAE)
- saturata, Kuroshiodaphne saturata (L.A. Reeve, 1845) - (RAPHITOMIDAE)
- saturata, Pleurotoma saturata L.A. Reeve, 1845 - syn of: Kuroshiodaphne saturata (L.A. Reeve, 1845) - (TURRIDAE)
- saturata chromatica, Limicolaria saturata chromatica H.A. Pilsbry, 1904 - (ACHATINIDAE)
- saturella, Delima binotata saturella H. Nordsieck, 1969 - (CLAUSILIIDAE)
- saturna, Limatula saturna F.R. Bernard, 1978 - (LIMIDAE)
- saturnale, Lytoceras saturnale Anderson, 1938 † - (LYTOCERATIDAE) (FOSSIL)
- saturnalia, Dentiovula saturnalia C.N. Cate & M. Azuma in C.N. Cate, 1973 - syn of: Dentiovula colobica (M. Azuma & C.N. Cate, 1971) - (OVULIDAE)
- saturnalis, Diodora saturnalis (P.P. Carpenter, 1864) - (FISSURELLIDAE)
- Saturnella, syn of: Genus Saturnopecten Astafieva, 2001 (CHAENOCARDIIDAE) (FOSSIL)
- saturni, Dentherona saturni (J.C. Cox, 1864) - (CHAROPIDAE)
- Saturnia, syn of: Genus Neilonella G. Seguenza, 1877 (NEILONELLIDAE)
- saturnia, Microliotia saturnia Unknown - (PICKWORTHIIDAE)
- SATURNIIDAE - syn of Family: NEILONELLIDAE
- Saturnopecten, Genus Saturnopecten Astafieva, 2001 (CHAENOCARDIIDAE) (FOSSIL)
- Saturnotropis, Genus Saturnotropis Hornύ, 1992 (EUOMPHALIDAE) (FOSSIL)
- saturnum, Mandaloceras saturnum (Barrande, 1870 †) - (MANDALOCERATIDAE) (FOSSIL)
- saturnum, Phragmoceras saturnum Barrande, 1870 † - syn of: Mandaloceras saturnum (Barrande, 1870 †) - (PHRAGMOCERATIDAE) (FOSSIL)
- saturnum, Astralium saturnum M. Chino, 1999 - (TURBINIDAE)
- saturnus, Cyclophorus saturnus L. Pfeiffer, 1862 - (CYCLOPHORIDAE)
- saturnus, Porphyrobaphe saturnus (L. Pfeiffer, 1860) - (ORTHALICIDAE)
- saturus, Peristernia saturus G.P. Deshayes in G.P. Deshayes & H. Milne-Edwards, 1843 - syn of: Peristernia despecta (A. Adams, 1855) - (FASCIOLARIIDAE)
- saturus tabularis, Chrysodomus saturus tabularis W.H. Dall, 1919 - syn of: Neptunea heros (J.E. Gray, 1850) - (BUCCINIDAE)
- satus, Fusiguraleus satus (C.R. Laws, 1936 †) - (MANGELIIDAE) (FOSSIL)
- satyrus, Helicostyla satyrus (W.J. Broderip, 1841) - (BRADYBAENIDAE)
- satyrus, Turbo satyrus Laube, 1869 † - syn of: Turbo haudcarinatus Münster, 1841 † - (TURBINIDAE) (FOSSIL)
- satyrus balabacensis, Helicostyla satyrus balabacensis (P. Bartsch, 1919) - (BRADYBAENIDAE)
- satyrus cinerosa, Helicostyla satyrus cinerosa L. Pfeiffer, 1855 - (BRADYBAENIDAE)
- satyrus cynocephala, Helicostyla satyrus cynocephala (L. Pfeiffer) - (BRADYBAENIDAE)
- satyrus graellsi, Helicostyla satyrus graellsi J.G. Hidalgo, 1886 - (BRADYBAENIDAE)
- satyrus higginsi, Helicostyla satyrus higginsi (P. Bartsch, 1919) - (BRADYBAENIDAE)
- satyrus librosa, Helicostyla satyrus librosa (L. Pfeiffer) - (BRADYBAENIDAE)
- satyrus mantangulensis, Helicostyla satyrus mantangulensis (P. Bartsch, 1919) - (BRADYBAENIDAE)
- satyrus palawanensis, Helicostyla satyrus palawanensis L. Pfeiffer - (BRADYBAENIDAE)
- satyrus tagbayugana, Helicostyla satyrus tagbayugana P. Bartsch, 1919 - (BRADYBAENIDAE)
- satyrus tidepolensis, Helicostyla satyrus tidepolensis (P. Bartsch, 1919) - (BRADYBAENIDAE)
- satyrus ulugana, Helicostyla satyrus ulugana (P. Bartsch, 1919) - (BRADYBAENIDAE)
- saubadae, Sukashitrochus saubadae P. Lozouet, 1998 † - (SCISSURELLIDAE) (FOSSIL)
- saubottense, Hemicerithium saubottense L. Vignal, 1910 † - (CERITHIIDAE) (FOSSIL)
- saubrigiana, Clavatula saubrigiana (J.P.S. Grateloup, 1840 †) - (CLAVATULIDAE) (FOSSIL)
- saubrigiana turriculata, Clavatula saubrigiana turriculata (J.P.S. Grateloup, 1840 †) - (CLAVATULIDAE) (FOSSIL)
- saubrigiana??, Clavatula saubrigiana?? (J.P.S. Grateloup, 1840) - (CLAVATULIDAE)
- saucatensis, Lithodomus saucatensis C. Mayer, 1858 - syn of: Lithophaga corrugata (R.A. Philippi, 1846) - (MYTILIDAE)
- saucatsense, Calliostoma saucatsense (É.A. Benoist, 1873 †) - (CALLIOSTOMATIDAE) (FOSSIL)
- saucatsense, Cardium saucatsense C. Mayer, 1866 † - (CARDIIDAE) (FOSSIL)
- saucatsensis, Euthria saucatsensis É.A. Benoist, 1874 † - (BUCCINIDAE) (FOSSIL)
- saucatsensis, Bulla saucatsensis É.A. Benoist, 1895 † - (BULLIDAE) (FOSSIL)
- saucatsensis, Clavatula saucatsensis M.A. Peyrot, 1931 † - (CLAVATULIDAE) (FOSSIL)
- saucatsensis, Conus saucatsensis C. Mayer, 1891 † - (CONIDAE) (FOSSIL)
- saucatsensis, Glycymeris saucatsensis (C. Mayer, 1868 †) - (GLYCYMERIDIDAE) (FOSSIL)
- saucatsensis, Haminoea saucatsensis (M.A. Peyrot, 1932 †) - (HAMINOEIDAE) (FOSSIL)
- saucatsensis, Nassarius saucatsensis M.A. Peyrot, 1924 † - (NASSARIIDAE) (FOSSIL)
- saucatsensis, Pharus saucatsensis (C. des Moulins, 1871 †) - (PHARIDAE) (FOSSIL)
- saucatsensis, Ancylus saucatsensis M.A. Peyrot, 1932 (?) † - (PLANORBIDAE) (FOSSIL)
- saucatsensis, Arcopagia saucatsensis A.E.M. Cossmann & M.A. Peyrot, 1910 † - (TELLINIDAE) (FOSSIL)
- saucatsensis, Tellina saucatsensis É.A. Benoist in A.E.M. Cossmann & M.A. Peyrot, 1910 † - (TELLINIDAE) (FOSSIL)
- saucatsensis, Teredo saucatsensis É.A. Benoist, 1873 † - (TEREDINIDAE) (FOSSIL)
- saucatsensis avitensis, Natica saucatsensis avitensis A.E.M. Cossmann & M.A. Peyrot, 1919 † - syn of: Cochlis neglecta (C. Mayer, 1858 †) - (NATICIDAE) (FOSSIL)
- saucia, Tornatellaea saucia Finlay & J. Marwick, 1937 † - (ACTEONIDAE) (FOSSIL)
- sauciata, Ostrea sauciata J.F. Gmelin, 1791 - syn of: Laevichlamys sauciata (J.F. Gmelin, 1791) - (OSTREIDAE)
- sauciata, Laevichlamys sauciata (J.F. Gmelin, 1791) - (PECTINIDAE)
- sauciata, Monodonta edulis sauciata (F.C.L. Koch, 1845) - (TROCHIDAE)
- sauciatus, Phorcus sauciatus (F.C.L. Koch, 1845) - (TROCHIDAE)
- sauciatus, Trochus sauciatus F.C.L. Koch, 1845 - syn of: Phorcus sauciatus (F.C.L. Koch, 1845) - (TROCHIDAE)
- saudiensis, Terebellum saudiensis Abbass, 1972 † - (SERAPHSIDAE) (FOSSIL)
- saueri, Scalarina scalarinum saueri (D. Geyer, 1914 †) - (COCHLOSTOMATIDAE) (FOSSIL)
- sauerzopfi, Gyraulus sauerzopfi T.A. Neubauer & al., 2015 - (PLANORBIDAE)
- saugeti, Cerion saugeti C.G. Aguayo & M.L. Jaume, 1951 - (CERIONIDAE)
- saugeti, Chondrothyrium violaceum saugeti C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- saugeti, Obeliscus saugeti C.G. Aguayo & M.L. Jaume, 1957 - (SUBULINIDAE)
- sauksayensis, Medlicottia sauksayensis Leonova 1992 † - (MEDLICOTTIIDAE) (FOSSIL)
- saulae, Toxoceratoides saulae C.E. Murphy, 1975 † - (ANCYLOCERATIDAE) (FOSSIL)
- saulae, Stirpulina saulae Stallwood 1995 † - (CLAVAGELLIDAE) (FOSSIL)
- saulae, Palmadusta saulae (J.S. Gaskoin, 1843) - (CYPRAEIDAE)
- saulae, Georissa saulae (W.S.S. Van Benthem-Jutting, 1966) - (HYDROCENIDAE)
- saulae, Angulathilda saulae (A. Kaim, 2004 †) - (MATHILDIDAE) (FOSSIL)
- saulae, Polinices saulae Perrilliat, 2013 † - (NATICIDAE) (FOSSIL)
- saulae, Platycochlium saulae S.P. Dance, 1970 - (STREPTAXIDAE)
- saulae manilensis, Palmadusta saulae manilensis L. Raybaudi Massilia, 1978 - (CYPRAEIDAE)
- saulae nugata, Palmadusta saulae nugata T. Iredale, 1935 - (CYPRAEIDAE)
- saulae nugata crakei, Palmadusta saulae nugata crakei (J.S. Gaskoin, 1843) - (CYPRAEIDAE)
- saulae siasiensis, Palmadusta saulae siasiensis C.N. Cate, 1960 - syn of: Palmadusta saulae (J.S. Gaskoin, 1843) - (CYPRAEIDAE)
- saulae visayanensis, Palmadusta saulae visayanensis L. Raybaudi Massilia, 1978 - syn of: Palmadusta saulae (J.S. Gaskoin, 1843) - (CYPRAEIDAE)
- Saulaepoma, Genus Saulaepoma Watters, 2006 (POMATIIDAE)
- saulcyana, Gundlachia saulcyana (J.R. Bourguignat, 1853) - (PLANORBIDAE)
- saulcyanum, Prunum saulcyanum (S.A.A. Petit De La Saussaye, 1851) - (MARGINELLIDAE)
- saulcydi, Lignus saulcydi L. de Joannis, 1898 - (ACHATINIDAE)
- saulcydi normalis, Perideris saulcydi normalis H.A. Pilsbry, 1898 - syn of: Lignus saulcydi L. de Joannis, 1898 - (ACHATINIDAE)
- saulcydiana, Crassispira saulcydiana (C.A. Récluz, 1851) - (PSEUDOMELATOMIDAE)
- saulcydianum, Drillia saulcydianum (C.A. Récluz, 1851) - (DRILLIIDAE)
- saulcyi, Pseudobithynia saulcyi (J.R. Bourguignat, 1853) - (BITHYNIIDAE)
- saulcyi, Granopupa saulcyi J.R. Bourguignat, 1852 - syn of: Granopupa granum (J.P.R. Draparnaud, 1801) - (CHONDRINIDAE)
- saulcyi, Obscurella saulcyi J.R. Bourguignat, 1891 - syn of: Cochlostoma obscurum (J.P.R. Draparnaud, 1801) - (COCHLOSTOMATIDAE)
- saulcyi, Corbicula saulcyi J.R. Bourguignat, 1868 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- saulcyi, Euchondrus saulcyi (J.R. Bourguignat, 1852) - (ENIDAE)
- saulcyi, Hemicycla saulcyi (A.V.M.D. D'Orbigny, 1839) - (HELICIDAE)
- saulcyi, Mutela saulcyi G. Servain, 1890 - syn of: Mutela dubia J.F. Gmelin, 1793 - (IRIDINIDAE)
- saulcyi, Melanopsis saulcyi J.R. Bourguignat, 1853 - (MELANOPSIDAE)
- saulcyi, Theodoxus saulcyi (J.R. Bourguignat, 1852) - (NERITIDAE)
- saulcyi, Daudebardia saulcyi (J.R. Bourguignat, 1852) - (OXYCHILIDAE)
- saulcyi, Trochus saulcyi D'Orbigny, 1840 - syn of: Phorcus sauciatus (F.C.L. Koch, 1845) - (TROCHIDAE)
- saulcyi, Leguminaia saulcyi (J.R. Bourguignat, 1852) - (UNIONIDAE)
- saulcyi, Valvata saulcyi J.R. Bourguignat, 1853 - (VALVATIDAE)
- saulcyi carta, Hemicycla saulcyi carta (J.F. Mabille, 1882) - (HELICIDAE)
- saulcyi maxima, Melanopsis saulcyi maxima P. Dautzenberg, 1894 - (MELANOPSIDAE)
- Saulea, Genus Saulea J.E. Gray, 1868 (AMPULLARIIDAE)
- Saulella, Genus Saulella Zinsmeister, 1983 (CARDIIDA (UNASSIGNED)) (FOSSIL)
- sauleyekiana, Hemiplecta sauleyekiana (L. Pfeiffer, 1851) - (ARIOPHANTIDAE)
- sauli, Ryssota sauli P. Bartsch, 1939 - (CHRONIDAE)
- sauli igbarasana, Ryssota sauli igbarasana P. Bartsch, 1939 - (CHRONIDAE)
- sauliae, Hypermastus sauliae A. Warén, 1980 - (EULIMIDAE)
- sauliae, Mactra sauliae L.A. Reeve, 1854 - syn of: Mactra sauliana J.E. Gray, 1838 - (MACTRIDAE)
- sauliae, Volvarina sauliae (G.B. II Sowerby, 1846) - (MARGINELLIDAE)
- sauliae, Parachondria sauliae (G.B. Sowerby, 1843) - (POMATIIDAE)
- sauliae, Charonia sauliae (L.A. Reeve, 1844) - (RANELLIDAE)
- sauliae, Charonia sauliae L.A. Reeve, 1844 - syn of: Charonia lampas sauliae (L.A. Reeve, 1844) - (RANELLIDAE)
- sauliae, Charonia lampas sauliae (L.A. Reeve, 1844) - (RANELLIDAE)
- sauliae macilenta, Charonia sauliae macilenta J.T. Kuroda & T. Habe, 1961 - syn of: Charonia lampas macilenta J.T. Kuroda & T. Habe, 1961 - (RANELLIDAE)
- sauliana, Mactra sauliana J.E. Gray, 1838 - (MACTRIDAE)
- saulii, Mactra saulii S.C.T. Hanley, 1843 - syn of: Mactra sauliana J.E. Gray, 1838 - (MACTRIDAE)
- saulii, Chicoreus saulii (G.B. I Sowerby, 1841) - (MURICIDAE)
- saulii, Triplex saulii (G.B. I Sowerby, 1841) - syn of: Chicoreus saulii (G.B. I Sowerby, 1841) - (MURICIDAE)
- saulii, Nausitora saulii (B.H. Wright, 1866) - (TEREDINIDAE)
- saundersae, Curvella saundersae M. Connolly, 1910 - (SUBULINIDAE)
- saundersi, Acanthochitona saundersi K.L. Gowlett-Holmes & W. Zeidler, 1987 - (ACANTHOCHITONIDAE)
- saundersi, Angustobactrites saundersi Mapes, 1979 † - (AGONIATITIDA (UNASSIGNED)) (FOSSIL)
- saundersi, Exechocirsus saundersi (Q.J.G.S. Woods, 1896 †) - (CERITHIIDAE) (FOSSIL)
- saundersi, Conus saundersi B.C. Cotton, 1945 - syn of: Floraconus anemone (J.B.P.A. Lamarck, 1810) - (CONIDAE)
- saundersi, Warthia saundersi E.L. Yochelson, 1960 † - (EUPHEMITIDAE) (FOSSIL)
- saundersi, Fusinus saundersi R. Hadorn & E. Rolán, 2009 - (FASCIOLARIIDAE)
- saundersi, Martoceras saundersi Nassichuk, 1977 † - (NEOSTACHEOCERATIDAE) (FOSSIL)
- saundersorum, Nostoceras saundersorum L.W. Stephenson, 1941 † - (NOSTOCERATIDAE) (FOSSIL)
- sauperi, Styrionautilus sauperi (Haueri, 1846 †) - (CLYDONAUTILIDAE) (FOSSIL)
- sauperi, Nautilus sauperi Haueri, 1846 † - syn of: Styrionautilus sauperi (Haueri, 1846 †) - (NAUTILIDAE) (FOSSIL)
- sauridens, Conus sauridens T.A. Conrad, 1833 † - (CONIDAE) (FOSSIL)
- sauridens, Gadila sauridens (R.B. Watson, 1879) - (GADILIDAE)
- sauridens chiraensis, Conus sauridens chiraensis A.A. Olsson, 1930 † - (CONIDAE) (FOSSIL)
- saurini, Garnieria saurini H. Nordsieck, 2002 - (CLAUSILIIDAE)
- saurini, Diaphera saurini W.S.S. Van Benthem-Jutting, 1962 - (DIAPHERIDAE)
- saurini, Myophorella saurini I. Hayami, 1972 † - (MYOPHORELLIDAE) (FOSSIL)
- saurini, Hunyadiscus saurini B. Páll-Gergely, 2016 - (PLECTOPYLIDAE)
- saurini, Bacteridiella saurini E. Robba, 2013 † - (PYRAMIDELLIDAE) (FOSSIL)
- saurini, Chrysallida saurini E. Robba, S.I. Di Geronimo, N. Chaimanee & al., 2004 - (PYRAMIDELLIDAE)
- saurini, Megastomia saurini (J.X. Corgan & J.J. Van Aartsen, 1998) - (PYRAMIDELLIDAE)
- saurivonga, Ganesella saurivonga (A.R.J.B. Bavay & P. Dautzenberg, 1900) - (CAMAENIDAE)
- saurivonga, Helix saurivonga A.R.J.B. Bavay & P. Dautzenberg, 1900 - syn of: Ganesella saurivonga (A.R.J.B. Bavay & P. Dautzenberg, 1900) - (HELICIDAE)
- Sauroconcha, Genus Sauroconcha Zhang & Shea, 2008 (CAMAENIDAE)
- saurodon, Strophiops saurodon W.H. Dall, 1905 - (CERIONIDAE)
- sauros, Conasprella sauros (E.F. Garcia, 2006) - (CONIDAE)
- sauros, Dalliconus sauros E.F. Garcia, 2006 - syn of: Conasprella sauros (E.F. Garcia, 2006) - (CONIDAE)
- sauryensis, Mulinia lateralis sauryensis A.A. Olsson, 1922 - (MACTRIDAE)
- saussureanus, Anisoceras saussureanus (Pictet, 1847 †) - (ANISOCERATIDAE) (FOSSIL)
- saussureanus, Cymatoceras saussureanus (Pictet, 1847 †) - (CYMATOCERATIDAE) (FOSSIL)
- saussurei, Oxymelania saussurei (A. Brot, 1874 †) - (PACHYCHILIDAE) (FOSSIL)
- saussurei, Melania saussurei A. Brot, 1860 † - syn of: Oxymelania saussurei (A. Brot, 1874 †) - (THIARIDAE) (FOSSIL)
- saussurei, Melania saussurei H. Strebel, 1873 - syn of: Oxymelania schiedeanus strebelianus P.H. Fischer & J.C.H. Crosse, 1892 - (THIARIDAE)
- sautereaui, Eocypraea sautereaui Belliard & Gain, 2015 † - (EOCYPRAEIDAE) (FOSSIL)
- sauternesensis, Tosapusia sauternesensis (E.G. Guillot de Suduiraut, 1997) - (COSTELLARIIDAE)
- sauvageaui, Subpulchellia sauvageaui (Hermite, 1879 †) - (PULCHELLIIDAE) (FOSSIL)
- sauvagei, Monocuphus sauvagei † - (APORRHAIDAE) (FOSSIL)
- sauvagei, Discodoris sauvagei (A. de Rochebrune, 1881) - (DISCODORIDIDAE)
- sauvagei, Turritella sauvagei Buvignier, 1852 † - syn of: Gordenella fahrenkohli (Rouillier, 1848 †) - (TURRITELLIDAE) (FOSSIL)
- sauvagesi, Radiolites sauvagesi (D'Hombres-Firmas, 1838 †) - (RADIOLITIDAE) (FOSSIL)
- Sauvagesia, Genus Sauvagesia Bayle, 1886 (RADIOLITIDAE) (FOSSIL)
- sauvalleanus, Tomelasmus sauvalleanus (J. Gundlach, 1856) - (UROCOPTIDAE)
- sauvallei, Hemitrochus sauvallei (R. Arango in L. Pfeiffer, 1866) - (CEPOLIDAE)
- sauvallei, Annularops sauvallei (J. Gundlach in L. Pfeiffer, 1863) - (POMATIIDAE)
- sauvallei chorrerensis, Annularops sauvallei chorrerensis (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- sauvallei cortinal, Annularops sauvallei cortinal (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- sauvallei fontei, Annularops sauvallei fontei M.I. Sánchez Roig, 1951 - (POMATIIDAE)
- sauvallei natensoni, Annularops sauvallei natensoni (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- sauvallei suavallei, Annularops sauvallei suavallei (J. Gundlach in L. Pfeiffer, 1863) - (POMATIIDAE)
- sauvanae, Pacaudina sauvanae J.J. Vermeulen & al., 2010 † - (ANAHAMULINIDAE) (FOSSIL)
- sauvanausa, Rhopaloteuthis sauvanausa (A.V.M.D. D'Orbigny, 1842 †) - (DUVALIIDAE) (FOSSIL)
- sauvanausus, Belemnites sauvanausus A.V.M.D. D'Orbigny, 1842 † - syn of: Rhopaloteuthis sauvanausa (A.V.M.D. D'Orbigny, 1842 †) - (BELEMNITELLIDAE) (FOSSIL)
- sauvelleana, Urocoptis sauvelleana (J. Gundlach, 1856) - (UROCOPTIDAE)
- sauvineti, Gaimardia sauvineti A. de Rochebrune & J.F. Mabille, 1889 - syn of: Gaimardia trapesina (J.B.P.A. Lamarck, 1819) - (GAIMARDIIDAE)
- sauzei, Otoites sauzei (A.V.M.D. D'Orbigny, 1825 †) - (OTOITIDAE) (FOSSIL)
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