The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

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Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Epioblasma arcaeformis

nominal species Unio nexus Say, 1831

Say, 1831, Transylvania J. Med. Assoc. Sci. 4: 527.
Say, 1834, Amer. Conch. 6: pl. 51.

= Epioblasma arcaeformis

Taxonomic Opinions

+ Epioblasma arcaeformis (Lea, 1831) — Williams et al., 2008
+ Epioblasma arcaeformis (Lea, 1831) — Parmalee & Bogan, 1998
+ Plagiola (s.s.) arcaeformis (Lea, 1831) — R.I. Johnson, 1978
+ Dysnomia (Penita) arcaeformis (Lea, 1831) — Haas, 1969
+ Dysnomia (Penita) arcaeformis (Lea, 1831) — Frierson, 1927
+ Truncilla (s.s.) arcaeformis (Lea, 1831) — Simpson, 1914
+ Truncilla (s.s.) arcaeformis Lea — Simpson, 1900
= Unio (sec. Lampsilis) nexus Say, 1831 — Paetel, 1890
+ Margaron (Unio) aræformis (Lea) — Lea, 1870
+ Unio arcæformis Lea, 1831 — Reeve, 1864
= Unio nexus Say, 1831 — Conrad, 1853
= Unio nexus Say — Küster, 1853
+ Truncilla arcaeformis (Lea) — Agassiz, 1852
+ Margaron (Unio) arcaeformis (Lea) — Lea, 1852
+ Unio arcæformis Lea — Hanley, 1843
+ Margarita (Unio) arcæformis Lea — Lea, 1838
= Unio nexus Say, 1831 — Conrad, 1837
+ Margarita (Unio) arcaeformis (Lea, 1831) — Lea, 1836
= Unio nexus Say — Ferussac, 1835

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