Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Lampsilini | Obovaria retusa
Say, 1829. New Harm. Dissem. 2(19): 293.
+ Obovaria (s.s.) retusa (Lamarck, 1819) — Haas, 1969
+ Obovaria (s.s.) retusa (Lamarck, 1819) — Frierson, 1927
+ Margaron (Unio) retusus (Lam.) — Lea, 1870