ニオガイ科

多くの種が穿孔性。
Subfamily/Jouannetiinae Tryon, 1862
Genus Jouannetia Desmoulins, 1828
Genus Netastoma Carpenter, 1864
Subfamily/Martesiinae Grant & Gale, 1931
Genus Aspidopholas P. Fischer, 1887
Genus Chaceia R. D. Turner, 1955
Genus Diplothyra Tryon, 1862
Genus Lignopholas R. D. Turner, 1955
Genus Martesia G. B. Sowerby I, 1824
Genus Parapholas Conrad, 1848
Genus Penitella Valenciennes, 1846／カモメガイ属
Genus Pholadidea W. Turton, 1819
Subfamily/Pholadinae Lamarck, 1809
Genus Barnea Risso, 1826／ニオガイ属
Genus Cyrtopleura Tryon, 1862
Genus Nipponopholas Okamoto & Habe, 1987
Genus Pholas Linnaeus, 1758
Genus Talona Gray, 1842
Genus Zirfaea Gray, 1842