Unionoida | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Elliptio crassidens nominal species Unio niger Conrad, 1836
‘Rafinesque’ Conrad, 1836, Monogr. Fam. Unionidae 1(6): 49, pl. 46.
‘Rafinesque’ Conrad, 1853, Proc. Acad. Nat. Sci. 6: 253.
(reference to Unio (Elliptio) nigra Rafinesque, 1820)
= Elliptio crassidens Taxonomic Opinions
+ Unio (sec. Elliptio) crassidens Lamarck, 1819 — Simpson, 1900
+ Unio crassidens Lamarck — Call, 1895
+ Unio crassidens Lam. — B.H. Wright, 1888
+ Margaron (Unio) crassidens (Lam.) — Lea, 1870
+ Margaron (Unio) crassidens (Lam.) — Lea, 1852
+ Unio niger Rafinesque — Küster, 1848
+ Unio crassidens Lam. — Hanley, 1843
+ Margarita (Unio) crassidens Lam. — Lea, 1838
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