Geukensia granosissima (G.B. III Sowerby, 1914)
Brachidontes granulatus (S.C.T. Hanley, 1843)
Modiolus granulosa (FOSSIL) Phillips, 1836 †
Plicatomytilus gratacapi (FOSSIL) E.C. Allison& W.O. Addicott, 1976 †
Crenomytilus grayanus (R.W. Dunker, 1853)
Adula gruneri (R.A. Philippi, 1851)
Modiolus gubernaculum (R.W. Dunker, 1856)
Crenella gubernatoria (FOSSIL) L.C. Glenn, 1904 †
Modiolus guiyangensis (FOSSIL) C. Chen, 1976 †
Modiolus guppyi (FOSSIL) W.H. Dallin W.P. Woodring, 1925 †
Mytella guyanensis (J.B.P.A. Lamarck, 1819)
Mytilus haboroensis (FOSSIL) H. Noda, 1992 †
Mytilus hamiltonensis (FOSSIL) R. Tate, 1887 †
Leiosolenus hancocki (T. Soot-Ryen, 1955)
Lithophaga hanleyana (L.A. Reeve, 1857)
Modiolatus hanleyi (R.W. Dunker, 1882)
Sinomytilus harmandi (A. de Rochebrune, 1881)
Modiolus hartleyensis (FOSSIL) R. Etheridge jr., 1902 †
Lithophaga hastasia A.A. Olsson, 1961
Semimodiola hastata (FOSSIL) (G.P. Deshayes, 1830 †)
Botula hawaiensis W.H. Dall, P. Bartsch& H.A. Rehder, 1938
Perna heberti (FOSSIL) A.E.M. Cossmann& A. Lambert, 1884 †
Bathymodiolus heckerae R.D. Turner, R.G. Gustafson, R.A. Lutz& R.C. Vrijenhoek, 1998
Dacrydium hedleyi J.A. Allen, 1998
Lithophaga hemirhabdota (FOSSIL) A.E.M. Cossmann, 1887 †
Dacrydium hendersoni C. Salas & S. Gofas, 1997
Bathymodiolus heretaunga (FOSSIL) Saether,C. Little & al., 2010 †
Volsellina heywoodi (FOSSIL) C.O. Waterhouse, 1987 †
Cyranus hillanus (FOSSIL) Sowerby, 1818 †
Idas hiranoi (J.T. Kuroda, 1933)
Trichomya hirsutua (J.B.P.A. Lamarck, 1819)
Bathymodiolus hirtus T.A. Okutani, K. Fujikura& T. Sasaki, 2004
Modiolus hollicki (FOSSIL) J. Brown, 1905 †
Mytilus homfrayi (FOSSIL) W.M. Gabb, 1864 †
Gigantidas horikoshii J. Hashimoto & T. Yamane,2005