Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina | Pyganodon fragilis nominal species Anodon subcylindracea Sowerby, 1867
‘Lea’ Sowerby, 1867, Conch. Icon. 17: pl. 15, fig. 47a. [in part]
(misidentified reference to Anodonta subcylindracea Lea, 1838)
= Pyganodon fragilis Taxonomic Opinions
+ Anodonta (s.s.) marginata Say, 1817 — Haas, 1969
+ Anodonta (s.s.) marginata Say, 1817 — Frierson, 1927
+ Anodonta marginata Say, 1817 — Simpson, 1914
+ Anodonta marginata Say, 1816 — Simpson, 1900
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