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Page last updated
Wed 1 October 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!

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Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini

genus Toxolasma Rafinesque, 1831: synonymy
     7 Recent freshwater species (7 total species)

Toxolasma Rafinesque, 1831
Rafinesque, 1831. Continuation: 2.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 72.
(renamed Toxelasma Agassiz, 1846)
Type species: Toxolasma lividus Rafinesque, 1831 (sub. desig. by Frierson, 1914: 7) = Toxolasma lividum

Toxelasma Agassiz, 1846
Agassiz, 1846. Nomencl. Zool. Index Univ.: 373.
Thiele, 1934. Handb. Syst. Weichtierk. 3: 835 [1271].
(new name for Toxolasma Rafinesque, 1831)

Corunculina F.C. Baker, 1898
Simpson in F.C. Baker, 1898. Bull. Chicago Acad. Sci. 3(1): 109.
(incorrect original spelling of Carunculina F.C. Baker, 1898)

Carunculina F.C. Baker, 1898
Simpson in F.C. Baker, 1898. Bull. Chicago Acad. Sci. 3(1): 109 [as ‘Corunculina’].
Simpson in F.C. Baker, 1898. Bull. Chicago Acad. Sci. 3(1): index and errata.
(intro'd as sub-gen. of Lampsilis Rafinesque, 1820; correct name for Corunculina F.C. Baker, 1898)
Type species: Unio parvus Barnes, 1823 (monotypy) = Toxolasma parvum

Taxonomic History (since 1900)

Lampsilis (Carunculina)Simpson (1900), Ortmann (1909), Simpson (1914)
Unio (s.s.)Call (1900)
Lampsilis (sec. Eurynia)Simpson (1900)
LampsilisSimpson (1900), Ortmann (1909)
CarunculinaOrtmann (1910), Ortmann (1915), Ortmann (1915), Utterback (1916), Ortmann & Walker (1922), ... Gordon et al. (1979), Mathiak (1979), R.I. Johnson (1980), Mackie et al. (1980), Davis & Fuller (1981)
Eurynia (Carunculina)Ortmann (1912)
Lampsilis (Eurynia)Simpson (1914)
Uniode Gregorio (1914)
ToxolasmaOrtmann (1918), Morrison (1969), Oesch (1984), Turgeon et al. (1988), Cummings & Mayer (1992), ... Dai et al. (2025), Chen et al. (2025), FMCS (2025), Cummings et al. (2025), Freeman et al. (2025)
ToxelasmaThiele (1934)

 
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