Genus Pegophysema R. B. Stewart, 1930

(3-4-4-0-20-4-3-23-0-0-0-0-0)
Ref. Bernard, 1983 p 29
Vokes, 1980 p 103
[see also as Subgenus under Genus Anodontia]
Ref. Abbott, 1974 p 462
Syn. Lissosphaira A. A. Olsson, 1961
Ref. Keen, 1971 p 126
Vaught, 1989 p 125