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Page last updated
Thu 7 August 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 | ... | Ambleminae | Lampsilini | Cyrtonaias umbrosa

Specimen USNM_1283187: Images
     Cyrtonaias umbrosa (Lea, 1856), Veracruz, Rio Tesechoacan at Tesechoacan, ca. 0.5 miles N of bridge of Rt. Mex. 145 (ca. 9.3 roadmiles W of junction of Rt. Mex. 145 and Rt. Mex. 25)

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