Zafra smithi (G.F. Angas, 1877)
Columbella socorroensis D.R. Shasky, 1970
Strombina solidula (L.A. Reeve, 1859)
Aesopus solidus W.L. May, 1910
Mitrella solitaria (FOSSIL) Báldi, 1966 †
Zafrona somalica L. Bozzetti, 2007
Columbella sonsonatensis (O.A.L. Mörch, 1860)
Pyrene sorongensis S.M. van Bruggen, 1956
Atilia souarsensis (FOSSIL) Degrange-Touzin, 1894 †
Anachis spadicea (R.A. Philippi, 1846)
Costoanachis sparsa (L.A. Reeve, 1859)
Macrozafra speciosa (G.F. Angas, 1877)
Antizafra speighti (FOSSIL) (J. Marwick, 1924 †)
Mitrella spelta (W. Kobelt, 1889)
Zemitrella spengleri M. Lussi, 2009
Exomilopsis spica (C. Hedley, 1907)
Mitrella spiralis D. Monsecour & D. Monsecour,2011
Mitrella spiratella (E.C. Von Martens, 1880)
Pyrene splendidula (G.B. I Sowerby, 1844)
Zemitrella spreta (K.H.J. Thiele, 1925)
Aesopus stearnsii (G.W. Tryon, 1883)
Astyris stemma W.H. Dall, 1927
Zemitrella stephanophora (H.H. Suter, 1908)
Costoanachis stevensoni (FOSSIL) E.S. Marks, 1951 †
Mitrella steyni M. Lussi, 2009
Costoanachis stibara (FOSSIL) W.P. Woodring, 1964 †
Costoanachis stimpsoni (P. Bartsch, 1915)
Zafrona striatula (R.W. Dunker, 1871)
Zafra stricosa K. Monsecour & D. Monsecour,2016
Anachis stricta (R.B. Watson, 1882)
Anachis strix (R.B. Watson, 1882)
Columbella strombiformis J.B.P.A. Lamarck, 1822
Indomitrella strongae K. Monsecour & D. Monsecour,2016
Anachis strongi (P. Bartsch, 1928)
Astyris suavis (E.A. Smith, 1906)