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Page last updated
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!

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Bivalvia | Venerida | Cyrenoidea | Cyrenoididae | Polymesoda

species Polymesoda species __: synonymy
     0 specimens

Cyrena sordida Hanley, 1844
Hanley, 1844. Proc. Zool. Soc. London 1844: 159.
Hanley, 1856. Illustr. Descr. Cat. Rec. Bivalve Shells: 352, pl. 14, fig. 51.

Polymesoda (s.s.) sordidaMartens (1900)

Cyrena subquadrata Deshayes, 1855
Deshayes, 1855. Proc. Zool. Soc. London 22: 21, sp. 33.
(renamed Cyrena californiensis Prime, 1860)

Cyrena (Anomala) cumingii Deshayes, 1855
Deshayes, 1855. Proc. Zool. Soc. London 22: 22, sp. 37.

Polymesoda (Egeta) cumingiMartens (1900)

Cyrena californiensis Prime, 1860
Prime, 1860. Proc. Acad. Nat. Sci. 12: 276.
(new name for Cyrena subquadrata Deshayes, 1855)

Cyrena californica Prime, 1865
Prime, 1865. Smithsonian Misc. Coll. (145): 23.
Prime, 1870. Amer. J. Conch. 5: 142.
‘Prime’ Clessin, 1879. Conch. Cab. 9(3): 232.
(error for Cyrena californiensis Prime, 1860)

Taxonomic History (since 1900)

Polymesoda (s.s.) sordidaMartens (1900)
Polymesoda (Egeta) cumingiMartens (1900)

 
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