MUSSELpdb
Taxonomy
Species & Genus Richness of
freshwater mussels
by Taxonomy
Species & Genus Richness of
freshwater bivalves
by Family
Geography
Species Richness & Endemism of
freshwater mussels
by Geography
Data last updated
Thu 22 January 2026
Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Psoronaias semigranosa
Specimen USNM_1282620: Images
Psoronaias semigranosa (von dem Busch in Philippi, 1843), Rio Tamuin [Tampaón], at Mex. 85 just S of Alvero Obregon, S of Ciudad Valles, San Luis Potosi, Mexico.
