Eurhomalea salinensis L. Ramorino, 1968
Tapes sallomacensis (FOSSIL) Fischer, 1879 †
Callocardia salvia (FOSSIL) A.A. Olsson, 1928 †
Lamelliconcha samanensis (FOSSIL) A.A. Olsson, 1928 †
Dosinia sanata E. Fischer-Piette& D. Delmas, 1967
Dosinia santana (FOSSIL) Loel & Corey, 1932 †
Lamelliconcha saponaria (FOSSIL) A.A. Olsson, 1928 †
Pitar sapotanus (FOSSIL) A.A. Olsson, 1932 †
Gafrarium savignyi (I.H. Jonas, 1846)
Atopodonta sawitrae (FOSSIL) (Beets 1941) †
Chione sawkinsi (FOSSIL) W.P. Woodring, 1925 †
Timoclea scabra (S.C.T. Hanley, 1845)
Dosinia scabriuscula (R.A. Philippi, 1847)
Katelysia scalarina (J.B.P.A. Lamarck, 1818)
Clausinella scalaris (H.G. Bronn, 1831)
Dosinia scalaris (K.T. Menke, 1843)
Timoclea scandularis (C. Hedley, 1909)
Lioconcha schioettei K.L. Lamprell & J.M. Healy,2002
Lioconcha schiottei K.L. Lamprell & J.M. Healy,2002
Paphia schnelliana (R.W. Dunker, 1865)
Notocallista schwartzi (FOSSIL) (Newton) †
Pitar sciaena (FOSSIL) A.A. Olsson, 1928 †
Periglypta scinctilla (FOSSIL) (G.P. Deshayes, 1857 †)
Katelysia scobinellata (FOSSIL) (J.B.P.A. Lamarck,1806 †)
Marcia scobinellata (FOSSIL) (J.B.P.A. Lamarck †)
Petricola scotti E.V. Coan, 1997
Circe scripta (C. Linnaeus, 1758)
Circe scripta personata G.P. Deshayes, 1854
Paleomarcia sculpta (FOSSIL) E.M. Fletcher, 1938 †
Dosinia sculpta S.C.T. Hanley, 1845
Callista sculpturata (FOSSIL) F. Stoliczka, 1870 †
Hyphantosoma sculpturata (FOSSIL) (P. Marshall, 1918 †)
Chionopsis sechuntana (FOSSIL) (G.D. Hanna & Israelsky,1925 †)
Venerella secunda (FOSSIL) (G.P. Deshayes, 1857 †)
Venerella secunda insolida (FOSSIL) A.M. Keen, 1954 †