Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Ptychobranchus subspatulatus nominal species Unio subspatulata Meek & Hayden, 1857
Meek & Hayden, 1857, Proc. Acad. Nat. Sci. 9: 146.
= Ptychobranchus subspatulatus Taxonomic Opinions
= Ptychobranchus subspatulatus (Meek & Hayden, 1857) — Modell, 1957
= Unio subspatulatus Meek & Hayden — Henderson, 1935
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