Meek. 1871. U.S. Geol. Surv. Wyo. & Terr [Ann. Rep.] (4).
(homonym of Suffrian, 1859 [Coleopt.]; renamed Protamblema Modell, 1957)
Meek, 1871. U.S. Geol. Surv. Wyo. & Terr [Ann. Rep.] (4): 294.
Type species: Unio belliplicatus Meek, 1870 = Protamblema belliplicatus