Subgenus (Sphenonaias) H. Crosse & P. Fischer, 1894

(3-5-4-0-4-9-7-175-7-0-0-0-0)
Syn. (Barynaias) H. Crosse & P. Fischer, 1894
Ref. Vaught, 1989 p 121
[see also as Genus]