Tasmatica schoutanica (W.L. May, 1913)
Natica schwarzenbergi (FOSSIL) Klipstein, 1843 †
Natica scopaespira J.Y. Liu, 1977
Sinum scopulosum (FOSSIL) T.A. Conrad, 1849 †
Falsilunatia scotiana (R.K. Dell, 1990)
Sinuber sculptum (E.C. Von Martens, 1878)
Natica scutulata R.A. Philippi, 1852
Mammilla sebae (C.A. Récluz, 1844)
Glossaulax secundum (FOSSIL) (A. de Rochebrune& J.F. Mabille, 1885 †)
Carinacca seguinensis (FOSSIL) Garvie, 2013 †
Neverita semiclausa (FOSSIL) G.P. Deshayes, 1864 †
Neverita semiglobosa (FOSSIL) J.P.S. Grateloup, 1847 †
Naticarius semilunata (FOSSIL) Lea, 1833 †
Sigatica semisulcata (Gray, 1839)
Sigatica semisulcata bathyora (W.P. Woodring, 1928 )
Taniella senisculus (FOSSIL) (Finlay & J. Marwick,1937 †)
Cochlis separata (FOSSIL) (G.P. Deshayes, 1864 †)
Euspira sergipensis (FOSSIL) C.J. Maury, 1936 †
Naticarius sertatus (K.T. Menke, 1843)
Natica severa A.A. Gould, 1859
Cepatia shazlii (FOSSIL) Abbass, 1967 †
Natica shoichiroi J.T. Kuroda, 1961
Tectonatica shorehami (G.B. Pritchard& J.H. Gatliff, 1900)
Natica sigillata J.H. McLean, 1970
Mammilla simiae (G.P. Deshayes, 1838)
Natica simplex G.B. III Sowerby, 1897
Uberella simulans (E.A. Smith, 1906)
Natica sinensis X.T. Ma & J.L. Zhang,1993
Banis siniformis (FOSSIL) L.W. Stephenson, 1941 †
Gennaeosinum sinuatus (C.A. Récluz, 1851)
Amauropsis smithiana (FOSSIL) C.J. Maury, 1912 †
Bulbus smithii J. Brown in Smith, 1839
Polinices sookensis (FOSSIL) Clark & R. Arnold, 1923 †
Conuber sordidum (W.J. Swainson, 1821)
Natica spadicea (J.F. Gmelin, 1791)