Genus Dithalmia [Dythalmia] J. C. Jay, 1835

(3-4-4-0-14-1-0-9-0-0-0-0-0)
[=Dreissena Beneden, 1835]
Ref. Vaught, 1989 p 133
Syn. Dithalamia F. Paetel, 1875;
Dythalamia F. Paetel, 1875
Ref. Vokes, 1980 p 248