Trigoniocardia guanacastensias (L.G. Hertlein& A.M. Strong, 1947) Panama
Maoricardium gudexi (FOSSIL) (C.R. Laws, 1933 †)
Americardia guppyi (K.H.J. Thiele, 1910) Venezuela6 mm
Lophocardium gurabica (FOSSIL) C.J. Maury, 1917 † Haiti, Ouest, Léogâne
Ctenocardia gustavi E. Vidal & L. Kirkendale,2007 Philippines, Mactan Island18,2 mm
Nemocardium hadraterum (FOSSIL) W.P. Woodring, 1982 † Panama
Trigoniocardia haitensis (FOSSIL) (Sowerby, 1850 †) Dominican Republic
Trigoniocardia haitensis cercadica (FOSSIL) (C.J. Maury, 1917 †) Dominican Republic10 mm
Trigoniocardia haitensis sambaica (FOSSIL) (C.J. Maury, 1917 †) Dominican Republic
Trachycardium halaense (FOSSIL) d'Archaic & Haime, 1854 † India, Uttarakhand, Garhwal
Trigoniocardia hannai (FOSSIL) A.A. Olsson, 1932 † Ecuador, Esmeraldas, Eloy Alfaro
Acanthocardia hanseata (FOSSIL) F. Kautsky, 1925 † Belgium
Papyridea harrimani (FOSSIL) W.H. Dall, 1904 † Japan, Hokkaido, Kitami
Bucardium harrisi (FOSSIL) (Vaughan †) USA, Alabama, Monroe
Ciliatocardium hataii (FOSSIL) (I. Hayasaka, 1956 †) Japan, Uraga Channel
Serripes hataii (FOSSIL) H. Noda, 1962 † Russia, Sakhalin
Schedocardia hatchetigbeensis (FOSSIL) (T.H. Aldrich, 1886 †) USA, Alabama, Mobile17,5 mm
Parvicardium hauniense (J.D. Petersen& H.D. Russell, 1971) Denmark3,2 mm
Vasticardium hawaiensis W.H. Dall, P. Bartsch& H.A. Rehder, 1939 Hawaii44,1 mm
Goniocardium heberti (FOSSIL) Vasseur, 1880 † France, Brittany37 mm
Frigidocardium helios J.J. Ter Poorten& J. Poutiers, 2009 Philippines, Punta Engano8 mm
Lunulicardia hemicardium (C. Linnaeus, 1758) Philippines, Masbate Island41 mm
Lunulicardia hemicardium tumorifera (J.B.P.A. Lamarck, 1819) Australia, Shark Bay38 mm
Pratulum hemimeris (FOSSIL) (R. Tate, 1887 †) Australia, Victoria, S. Grampians Bal
Protocardia hepingxiangensis (FOSSIL) J. Chen † China, Qinghai
Discors herculeus (FOSSIL) G.F. Dollfus, Cotter& al., 1904 † Hungary, Börzsöny45 mm
Trigoniocardia heredia (FOSSIL) A.A. Olsson, 1922 † Costa Rica9 mm
Apiocardia heridia (FOSSIL) (A.A. Olsson, 1922 †)
Protocardia hillana (FOSSIL) (J. de C. Sowerby,1813 †) Egypt, Sinai Peninsula
Afrocardium hirsutum (FOSSIL) (H.G. Bronn, 1831 †) Hungary, Borsodbóta7 mm
Papyridea hiulcum (L.A. Reeve, 1845) Ecuador22 mm
Acrosterigma hobbsae E. Vidal, 1999 Philippines, Palawan Island42 mm
Europicardium hoernesi (FOSSIL) R. La Perna, 2016 † Austria
Nemocardium hoernesi (FOSSIL) (G.P. Deshayes, 1858 †) France, Paris Basin22 mm
Laevifulvia hungerfordi (G.B. III Sowerby, 1901) Philippines, Bohol Island4,5 mm