Ortmann, A.E. 1914. Studies in najades. Nautilus 28(6): 65-69. Available electronically.
Ortmann, 1909. Ann. Carnegie Mus. 5: 192.
Ortmann, 1912. Ann. Carnegie Mus. 8: 327.
Ortmann, 1914. Nautilus 28(6): 67.
(error for Amygdalonaias Fischer & Crosse, 1894)
Type species: Unio cognatus Lea, 1860 = Truncilla cognata