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Thu 3 September 2025

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!

Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Lampsilini | Ptychobranchus fasciolaris

nominal species Unio abacus Haldeman, 1842

= Ptychobranchus fasciolaris

Taxonomic Opinions

+ — Parmalee & Bogan, 1998

+ Ptychobranchus (s.s.) fasciolaris (Rafinesque, 1820) — Haas, 1969

+ Ptychobranchus (s.s.) fasciolare (Rafinesque, 1820) — Frierson, 1927

+ — Ortmann, 1918

= Pleurobema abacus (Haldeman, 1842) — Simpson, 1914

= Pleurobema (s.s.) abacus (Haldeman, 1842) — Simpson, 1900

= Unio (sec. Lampsilis) abacus Hld,. — Paetel, 1890

= Unio abacus Hald. — B.H. Wright, 1888

= Margaron (Unio) abacus (Hald.) — Lea, 1870

= Unio (Lampsilis) abacus Hald. — Adams & Adams, 1857

= Unio abacus Hald. — Conrad, 1853

= Margaron (Unio) abacus (Hald.) — Lea, 1852