Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Ptychobranchus foremanianus nominal species Unio trinacrus Lea, 1861
Lea, 1861, Proc. Acad. Nat. Sci. 13: 59.
Lea, 1862, Jour. Acad. Nat. Sci. 5 [O. 8]: 86 [90], pl. 12, fig. 235.
Type(s): HOLOTYPE USNM_84445, Coosa R., Alabama.
= Ptychobranchus foremanianus Taxonomic Opinions
+ Ptychobranchus foremanianus (Lea, 1842) — Williams et al., 2008
+ Ptychobranchus greeni (Conrad, 1834) — Parmalee & Bogan, 1998
+ Ptychobranchus greeni (Conrad, 1834) — Burch, 1975
+ Ptychobranchus (s.s.) foremanianum (Lea, 1842) — Haas, 1969
+ Ptychobranchus (s.s.) foremanianum (Lea, 1842) — Frierson, 1927
= Ptychobranchus trinacrium [sic] (Lea, 1861) — Simpson, 1914
= Ptychobranchus trinacrus (Lea, 1861) — Simpson, 1900
= Unio trinacrus Lea — B.H. Wright, 1888
= Margaron (Unio) trinacrus (Lea) — Lea, 1870
= Unio trinacris [sic] Lea, 1861 — Sowerby, 1868
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