Dallarca staminea (FOSSIL) (T. Say, 1832 †)
Barbatia stearnsi (H.A. Pilsbry, 1895)
Bentharca steffeni (FOSSIL) K. Amano, B.W. Jenkins& Nishida, 2015 †
Samacar strabo (C. Hedley, 1915)
Bathyarca strebeli (J.C. Melvill & R. Standen,1907)
Anadara strebla (FOSSIL) Gardner, 1947 †
Arca striatula (FOSSIL) Hislop, 1859 †
Barbatia striatularis (FOSSIL) (Melleville, 1843 †)
Barbatia strongi (FOSSIL) Loel & Corey, 1932 †
Arca subaequalis (FOSSIL) F. McCoy, 1851 †
Arca subbarbatula (FOSSIL) Dufour, 1881 †
Arca subcalcarea (FOSSIL) C.H. Oostingh, 1941 †
Barbatia subcandida (FOSSIL) W.P. Woodring, 1925 †
Arca subfiligrana (FOSSIL) d'Archaic & Haime, 1853 †
Anadara subglobosa (W. Kobelt, 1889)
Anadara subgranosa (R.W. Dunker, 1869)
Barbatia subhelbingi (A.V.M.D. D'Orbigny,1852 )
Barbatia subhelbingi variabilis C. Mayer, 1868
Arca sublata (FOSSIL) Thurmann & Etallon,1862 †
Calloarca submarylandica (FOSSIL) C.J. Maury, 1917 †
Arca subminuata (FOSSIL) Dufour, 1881 †
Anadara submontereyana (FOSSIL) Clark, 1918 †
Arca submultiformis (FOSSIL) E.W. Vredenburg, 1928 †
Barbatia submytiloides (FOSSIL) (R. Tournouer, 1876 †)
Anadara suboblonga (FOSSIL) Boettger, 1883 †
Arca subprotracta (FOSSIL) A. Heilprin, 1881 †
Dallarca subrostrata (FOSSIL) (T.A. Conrad, 1841 †)
Anadara subrubra (R.W. Dunker, 1866)
Barbatia subtrigonalis (FOSSIL) K. Martin, 1883 †
Arca subvelata (FOSSIL) H.H. Suter, 1917 †
Anadara suessi (FOSSIL) (F. Kautsky, 1925 †)
Vitracar sulcata (J.B.P.A. Lamarck, 1819)
Arca sulcicosta (FOSSIL) P. Nyst, 1836 †
Anadara sulcicostata (FOSSIL) (P. Nyst, 1836 †)
Barbatia sundaiana (FOSSIL) K. Martin, 1916 †