Brachidontes crebricostatus (T.A. Conrad, 1837)
Brachidontes crebristriatus (T.A. Conrad, 1837)
Brachidontes crenella (FOSSIL) G.P. Deshayes, 1858 †
Idas cristiani F.L. Giusti, P. Mietto& C. Sbrana, 2012
Arvella crocea (A. Adams, 1862)
Adipicola crypta (W.H. Dall, P. Bartsch& H.A. Rehder, 1938)
Crenella cucullata (FOSSIL) G.P. Deshayes, 1858 †
Musculus cumingianus (L.A. Reeve, 1857)
Septifer cumingii C.A. Récluz, 1849
Septifer cumingii bryanae C.A. Récluz, 1849
Dacrydium cupressinum (FOSSIL) J.H. Couper, 1960 †
Musculus cupreus (A.A. Gould, 1861)
Musculus curta (FOSSIL) L.C. Glenn, 1904 †
Lithophaga curta C.E. Lischke, 1874
Lithophaga cylindrica (C.F.F. von Krauss, 1848)
Idas cylindricus J. Pelorce & J. Poutiers,2009
Botula cylista S.S. Berry, 1959
Modiolus cypris (FOSSIL) E. Forbes, 1846 †
Lithophaga dahabensis (K.H. Kleemann, 2008)
Idas dalli (E.A. Smith, 1885)
Modiolus dalli (FOSSIL) L.C. Glenn, 1904 †
Crenomytilus dariensis (FOSSIL) A.A. Olsson, 1967 †
Brachidontes darwinianus (A.V.M.D. D'Orbigny,1842)
Dacrydium dauvini C. Salas & S. Gofas, 1997
Modiolus decliva (FOSSIL) White, 1887 †
Vilasina decorata (C.B. Adams, 1862)
Crenella decussata (G. Montagu, 1808)
Geukensia demissa (Dilwyn, 1817)
Amygdalum dendriticum J.K. Megerle Von Mühlfeld,1811
Gregariella denticulata (W.H. Dall, 1871)
Mytilus deperditus (FOSSIL) R. Tate, 1887 †
Septifer depressus (FOSSIL) A.E.M. Cossmann, 1887 †
Mytilus desolationis É. Lamy, 1936
Mytilus devjatilovae V.N. Sinelnikova, 1997
Brachidontes dichotoma (FOSSIL) J.J.F. Whiteaves, 1885 †