Eurytellina solitaria (FOSSIL) Powell, 1931 †
Arcopagia solomonis (FOSSIL) Garvie, 2013 †
Tellina songoensis (FOSSIL) Martin, 1914 †
Macoma sookensis (FOSSIL) Clark & R. Arnold, 1923 †
Tellina sowerbii (S.C.T. Hanley, 1844)
Tellina soyoae (T. Habe, 1958)
Macoma spambergensis (FOSSIL) Khudik, 1989 †
Leporimetis spectabilis (S.C.T. Hanley, 1846)
Tellina spenceri (H.H. Suter, 1907)
Tellina spengleri J.F. Gmelin, 1791
Strigilla sphaerion (FOSSIL) Gardner, 1947 †
Arcopagia spinosa (FOSSIL) S.C.T. Hanley, 1844 †
Quadrans spinosus (S.C.T. Hanley, 1844)
Strigilla splendida (H.E. Anton, 1838)
Tellina squamifera (G.P. Deshayes, 1855)
Tellina staurella J.B.P.A. Lamarck, 1818
Tellina steinbecki (E.V. Coan& P.H. Valentich-Scott, 2010)
Tellina stenochora (FOSSIL) A.E.M. Cossmann, 1886 †
Nelltia stenzeli (FOSSIL) (H.B. Stenzel, 1952 †)
Solyma stewarti (FOSSIL) Stephenson 1952 †
Homalina stirlingi (FOSSIL) R. Tate, 1887 †
Tellina straminea G.P. Deshayes, 1855
Bertinella striatissima (FOSSIL) (G.P. Deshayes, 1857 †)
Tellina strictolineata (FOSSIL) A.A. Olsson & A. Harbison,1953 †
Tellina strigosa J.F. Gmelin, 1791
Bertinella strongyla (FOSSIL) (A.E.M. Cossmann, 1886 †)
Tellinella strophia (FOSSIL) W.H. Dall, 1900 †
Gastrana suarezensis V. Bertin, 1878
Linearis subconcentrica (FOSSIL) (d'Orbigny 1844) †
Tellina subcorneola (FOSSIL) A.E.M. Cossmann, 1906 †
Moerella subdonacialis (FOSSIL) (d'Archiac & Haime,1853 †)
Cyclotellina subelegans (FOSSIL) (A.V.M.D. D'Orbigny,1850 †)
Macoma suberis (FOSSIL) (W.H. Dall, 1900 †)
Macoma subovata (G.B. II Sowerby, 1867)
Loxoglypta subpallida (E.A. Smith, 1891)