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Page last updated
Thu 17 July 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 | Unionoida | Unionoidea | Unionidae | Ambleminae | Amblemini

genus Plectomerus Conrad, 1853: synonymy
     1 Recent valid species (1 total species)

Bariosta Rafinesque, 1831
Rafinesque, 1831. Continuation: 2.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 73.
(renamed Baryosta Agassiz, 1846)
Type species: Bariosta ponderosus Rafinesque, 1831 (sub. desig. by Fischer, 1887: 1000) = Plectomerus dombeyanus

Gonamblus Rafinesque, 1831
Rafinesque, 1831. Continuation: 5.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 79.
Type species: Lasmigona ponderosa Rafinesque, 1831 (orig. desig.) = Plectomerus dombeyanus

Baryosta Agassiz, 1846
Agassiz, 1846. Nomencl. Zool. Index Univ.: 44.
(new name for Bariosta Rafinesque, 1831)

Plectomerus Conrad, 1853
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 260.
Type species: Unio trapezoides Lea, 1831 (sub. desig. by Ortmann & Walker, 1922: 9) = Plectomerus dombeyanus

Taxonomic History (since 1900)

Quadrula (sec. Crenodonta)Simpson (1900), Simpson (1914)
Unio (s.s.)Call (1900)
BariostaSimpson (1900), Simpson (1914)
QuadrulaOrtmann (1909)
CrenodontaOrtmann (1912)
PlectomerusOrtmann & Walker (1922), R.I. Johnson (1969), Haas (1969), Burch (1975), Gordon et al. (1979), ... Graf & Cummings (2021), FMCS (2021), Stodola et al. (2021), Hopper et al. (2023), Freeman et al. (2025)
Amblema (Plectomerus)Frierson (1927), Haas (1969)
AmblemaThiele (1934), Davis & Fuller (1981)

 
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