Genus Margarita I. Lea [1836, not W. E. Leach, 1814]

(3-5-4-0-4-9-7-146-0-0-0-0-0)
Ref. Vokes, 1980 p 75
[=Unio Philipsson, 1788]
Ref. Vaught, 1989 p 120