Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina | Pyganodon fragilis nominal species Anodon exilis Sowerby, 1870
‘Lea’ Sowerby, 1870, Conch. Icon. 17: pl. 22, sp. 84.
(misidentified reference to Anodonta exilis Lea, 1838)
= Pyganodon fragilis Taxonomic Opinions
+ Anodonta (s.s.) marginata Say, 1817 — Frierson, 1927
+ Anodonta marginata Say, 1817 — Simpson, 1914
+ Anodonta marginata Say, 1816 — Simpson, 1900
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