Genus Protothaca W. H. Dall, 1902

(3-4-4-0-26-7-1-57-0-0-0-0-0)
Ref. Abbott, 1974 p 526
Abbott & Dance, 1982 p 368
Amer. Fish. Soc., 1988 p 44
Bernard, 1983 p 52
Lindner, 1977 p 116
Vaught, 1989 p 135
Syn. Paphia of authors
Tapes of authors
Venerupis of authors
Ref. Keen, 1971 p 192
Syn. Prototheca H. V. Howe, 1922
Ref. Vokes, 1980 p 178