Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Lampsilini | Pseudoon olivarium

nominal species Unio triagularis Say, 1834

Unio triagularis Say, 1834 = Pseudoon olivarium

(misidentified reference to Obliquaria (Scalenaria) triangularis Rafinesque, 1820)
‘R.’ Say, 1834. Amer. Conch. 1(6): sp. 34 [synonymy].

Taxonomic Opinions

+ Obovaria (Pseudoön) ellipsis (Lea) — Simpson, 1914: 300.

+ Obovaria (Pseudoon) ellipsis Lea — Simpson, 1900: 602.