Utterback, W.I. 1915. The naiades of Missouri. I. American Midland Naturalist 4(3): 41-53. Available electronically.
Utterback, 1915. Amer. Midl. Nat. 4(3): 47.
Utterback, 1916. Amer. Midl. Nat. 4(7): 7.
(incorrect original spelling of Megalonaias Utterback, 1915)
Type species: Unio heros Say, 1829 (original designation) = Megalonaias nervosa
Utterback, 1915. Amer. Midl. Nat. 4(3): ??.
(error for Uniomerus Conrad, 1853)
Type species: Unio excultus Conrad, 1838 = Uniomerus declivis
Utterback, 1915. Amer. Midl. Nat. 4(3): 48.
Utterback, 1915. Amer. Midl. Nat. 4(6): 247.
(error for Unio camptodon Say, 1832)