Rhinoclama benthedii (J. Poutiers, 1984)
Bathyneaera bernardi E.M. Krylova, 1993
Cuspidaria bicarinata (J.G. Jeffreys, 1882)
Myonera bicarinata E.A. Smith, 1896
Cuspidaria bouryi (FOSSIL) A.E.M. Cossmann, 1886 †
Cuspidaria brachyrhynchus R. Sturany, 1899
Plectodon brazieri (E.A. Smith, 1885)
Austroneaera brevirostris A.W.B. Powell, 1937
Rhinoclama brevirostris A.W.B. Powell, 1937
Austroneaera brooki (B.A. Marshall, 2002)
Cardiomya bruuni R.K. Dell, 1956
Cuspidaria buccina F.R. Bernard, 1989
Cardiomya cadiziana M. Huber, 2010
Rengea caduca (E.A. Smith, 1894)
Myonera canariensis (T.W. De Boer, 1985)
Leiomya cancellata (FOSSIL) (J.B.P.A. Lamarck,1806 †)
Cuspidaria capensis (E.A. Smith, 1885)
Cardiomya casta (R.B. Hinds, 1843)
Cuspidaria centobi (P. Bouchet & A. Warén,1979)
Luzonia chilensis (W.H. Dall, 1890)
Cuspidaria chinensis (J.E. Gray in E. Griffith& E. Pidgeon, 1833)
Cardiomya chuni (K.H.J. Thiele& S.G.A. Jaeckel, 1931)
Cuspidaria circinata (J.G. Jeffreys, 1876)
Soyomya clathrata (J. Poutiers& F.R. Bernard, 1995)
Cardiomya cleryana (A.V.M.D. D'Orbigny,1842)
Austroneaera coanscotti M. Huber, 2010
Cuspidaria cochinensis H.B. Preston, 1916
Cuspidaria cochlearella (FOSSIL) (G.P. Deshayes, 1824 †)
Cuspidaria concentrica K.H.J. Thiele, 1912
Cardiomya concinna (R.B. Hinds, 1843)
Cuspidaria contracta (J.G. Jeffreys, 1882)
Cuspidaria convexa J.P.L. Pelseneer, 1911
Cuspidaria corrugata B. Prashad, 1932
Cardiomya costata (G.B. I Sowerby, 1834)
Cardiomya costellata (G.P. Deshayes, 1835)