Ihering, H.v. 1901. The Unionidae of North America [continued]. Nautilus 15(5): 50-53. Available electronically.

Simpson, 1900. Proc. U.S. Nat. Mus. 22: 571, footnote 4 [as ‘Unio explicatus’].
Ihering, 1901. Nautilus 15(5): 50.
Type(s): HOLOTYPE (ORIG. DESIG.) SMF_3477, Río Chixoy, Nebemfld. Río Usumacinta, Guatemala.
+ Unio perdix Lea, 1834
+ Lampsilis (Proptera) explicatus Simpson, 1900
+ Unio goascoranensis Lea, 1858
+ Unio aztecorum Philippi, 1847
+ Unio persulcatus Lea, 1859
+ Unio rugulosus Küster, 1856
+ Unio plicatulus Küster, 1856
+ Unio calamitarum var. B prolongata Fischer & Crosse, 1894