Unionoida | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Pleurobema decisum nominal species Unio scalenius Say, 1834
Say, 1834, Amer. Conch. 6: ??.
(misidentified reference to Obliquaria (Scalenaria) scalenia Rafinesque, 1820)
= Pleurobema decisum Taxonomic Opinions
+ Pleurobema (s.s.) decisus (Lea, 1831) — Frierson, 1927
+ Pleurobema (s.s.) decisum (Lea, 1831) — Simpson, 1914
+ Pleurobema (s.s.) decisa (Lea, 1831) — Simpson, 1900
+ Unio decisus Lea — Ferussac, 1835
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