Baker. 1916. Tech. Publ. New York State Coll. Forestry (4).
‘Crosse & Fischer’ of Authors.
Ortmann, 1912. Ann. Carnegie Mus. 8: 324.
Baker, 1916. Tech. Publ. New York State Coll. Forestry (4): 75.
(error for Nephronaias Fischer & Crosse, 1894)
Type species: Unio plicatulus Küster, 1856 = Nephronaias aztecorum