Bivalvia | ... | Unionidae | Ambleminae | Quadrulini | Quadrulina | Theliderma stapes

nominal species Unio retusus Say, 1834

Unio retusus Say, 1834 = Theliderma stapes

Say, 1834. Amer. Conch. 6: ??.
(misidentified reference to Unio retusa Lamarck, 1819)

= Theliderma stapes

Taxonomic Opinions

+ Quadrula (s.s.) stapes (Lea, 1831) — Simpson, 1914

+ Quadrula (s.s.) stapes (Lea, 1831) — Simpson, 1900

+ Unio retusus Lam. — Conrad, 1853

+ Unio stapes Lea — Ferussac, 1835