Macoma pseudomera W.H. Dall & C.T. Simpson,1901
Macoma pulleyi F. Boyer, 1969
Macoma rekinnensis (FOSSIL) V.N. Sinelnikova, 1990 †
Macoma retrorsa (G.B. II Sowerby, 1867)
Macoma scarlatoi (FOSSIL) A.I. Kafanov& K.A. Lutaenko, 1997 †
Macoma schultzei K.H.J. Thiele, 1910
Macoma secta (T.A. Conrad, 1837)
Macoma sectior (K. Oyama, 1950)
Macoma sejugata (FOSSIL) (M. Yokoyama, 1924 †)
Macoma seminuda (FOSSIL) K.B. Barinov & al.,1992 †
Macoma shiratoriensis (T. Matsubara, 1994)
Macoma siliqua (C.B. Adams, 1852)
Macoma simizuensis (FOSSIL) Krishtofovich, 1957 †
Macoma sookensis (FOSSIL) Clark & R. Arnold, 1923 †
Macoma spambergensis (FOSSIL) Khudik, 1989 †
Macoma suberis (FOSSIL) (W.H. Dall, 1900 †)
Macoma subovata (G.B. II Sowerby, 1867)
Macoma tageliformis W.H. Dall, 1900
Macoma takahokoensis A. Yamamoto & T. Habe,1959
Macoma tenta T. Say, 1834
Macoma tigilensis (FOSSIL) L. Krishtofovich, 1947 †
Macoma tokyoensis J. Makiyama, 1927
Macoma torelli (A.S. Jensen, 1905)
Macoma truncata I.H. Jonas, 1844
Macoma twinensis (FOSSIL) Clark, 1925 †
Macoma uruguayensis (E.A. Smith, 1885)
Macoma vanvlecki (FOSSIL) R. Arnold, 1910 †
Macoma vappa (T. Iredale, 1929)
Macoma vasiljewskii (FOSSIL) Krishtofovich, 1969 †
Macoma ventricosa (G.P. Deshayes, 1855)
Macoma vialovi (FOSSIL) V.N. Sinelnikova & al.,1991 †
Macoma virginiana (FOSSIL) T.A. Conrad, 1866 †
Macoma yoldiformis P.P. Carpenter, 1864
Cymatoica hispaniolae (FOSSIL) Maury 1917 †
Cymatoica marcottae (FOSSIL) A.A. Olsson & R.E. Petit,1964 †
Cymatoica orientalis W.H. Dall, 1890
Cymatoica undulata (S.C.T. Hanley, 1844)
Rexithaerus andersoni (FOSSIL) Clark, 1915 †
Scissulina dispar (T.A. Conrad, 1837)
Scissulina tsichungyeni (O.A. Scarlato, 1965)