Genus Caenonaias H. Crosse & P. Fischer, 1894

(3-6-4-0-4-9-7-32-0-0-0-0-0)
Ref. Vokes, 1980 p 73
[=Nephronaias H. Crosse & P. Fischer, 1894]
Ref. Vaught, 1989 p 120