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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 | ... | Ambleminae | Lampsilini | Friersonia iridella

Specimen USNM_1282427: Images
     Friersonia iridella (Pilsbry & Frierson, 1908), Small river (local people call it Arroyo los Gatos), presumably a headwaters stream of the Casas Viajas system, at Rt Mx 80 in Nuevo Morelos (ca. 0.7 roadmiles from sign on E end of town), ca. 12.1 roadmiles along Rt Mx 80 W of Antiguo Morelos, Tamaulipas, Mexico