Chlamys strategus (W.H. Dall, 1898)
Neithea striatocostata (FOSSIL) (G.A. Goldfuss, 1833 †)
Annachlamys striatula (C. Linnaeus, 1758)
Palliolum striatum (O.F. Müller, 1776)
Hyalopecten strigillatus (W.H. Dall, 1886)
Eopecten studeri (FOSSIL) (Pictet & Roux) †
Mimachlamys sturtiana (FOSSIL) (R. Tate, 1886 †)
Neithea subalpina (FOSSIL) Bose, 1919 †
Pecten subalternans (FOSSIL) d'Orbigny, 1849 †
Pecten subarcuatus (FOSSIL) R. Tournouer, 1874 †
Oppenheimopecten subbenedictus (FOSSIL) (C.F. Fontannes, 1878 †)
Equichlamys subbifrons (FOSSIL) (R. Tate, 1886 †)
Mesopeplum subconvexum (FOSSIL) (R. Tate, 1887 †)
Amusium subcorneum (FOSSIL) d'Archaic & Haime, 1854 †
Pecten subdemissus (FOSSIL) Münster, 1841 †
Argopecten subdolus (FOSSIL) L.G. Hertlein, 1925 †
Pseudamussium sublobatum (FOSSIL) (Phillips, 1836) †
Eburneopecten subminutus (FOSSIL) T.H. Aldrich, 1903 †
Nodipecten subnodosus (Sowerby, 1836)
Kotorapecten subrefugionensis (FOSSIL) (Slodkewitsch, 1938 †)
Kotorapecten subsingularis (FOSSIL) V.N. Sinelnikova, 1975 †
Plesiopecten subspinosus (FOSSIL) Schlotheim, 1822 †
Chlamys substriata (FOSSIL) F.A. Roemer, 1835 †
Janupecten subteres (FOSSIL) J. Marwick, 1943 †
Aequipecten subtripartita (FOSSIL) (d'Archiac, 1847 †)
Camptonectes subulatus (FOSSIL) (G.A. Goldfuss, 1834 †)
Mizuhopecten subyessoensis (FOSSIL) (M. Yokoyama, 1930 †)
Karnekampia sulcata (O.F. Müller, 1776)
Pecten sulcicostatus G.B. II Sowerby, 1842
Anguipecten superbus (G.B. II Sowerby, 1842)
Laevichlamys superficialis (P. Forsskål in C. Niebuhr,1775)
Chlamys suttonensis (FOSSIL) (Tawney) †
Aequipecten suwaneensis (FOSSIL) W.H. Dall, 1898 †
Pecten suwanneensis (FOSSIL) W.H. Dall, 1898 †
Argopecten sverdrupi (FOSSIL) J.W. Durham, 1950 †