オオヒシガイ属

Species Fragum bannoi (Otsuka, 1937)／ヒシガイ
Species Fragum fragum (Linnaeus, 1758)／オオヒシガイ
Species Fragum loochooanum Kira, 1959 ／オキナワヒシガイ
Species Fragum mundum (Reeve, 1845)／クサビヒシガイ
Species Fragum scruposum (Deshayes, 1855)
Species Fragum sueziense (Issel, 1869)
Species Fragum unedo (Linnaeus, 1758)／カワラガイ

Subfamily/Trachycardiinae R. B. Stewart, 1930/ザルガイ亜科
Genus Acrosterigma Dall, 1900
Genus Dallocardia R. B. Stewart, 1930
Genus Mexicardia R. B. Stewart, 1930
Genus Papyridea Swainson, 1840
Genus Phlogocardia R. B. Stewart, 1930
Genus Trachycardium Mörch, 1853
Genus Vasticardium Iredale, 1927
Subfamily/Tridacninae Lamarck, 1819/シャコガイ亜科
Genus Hippopus Lamarck, 1799
Genus Tridacna Bruguière, 1797