Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Ptychobranchus
Meek & Hayden, 1857. Proc. Acad. Nat. Sci. 9: 146.
Unio subspatulatus — Henderson (1935)
Ptychobranchus subspatulatus — Modell (1957)
‘Meek & Hayden’ Modell, 1957. Arch. Moll. 86: 192.
(error for Unio subspatulata Meek & Hayden, 1857)
Unio subspatulatus — Henderson (1935)
Ptychobranchus subspatulatus — Modell (1957)