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
Mon 2 March 2026
Bivalvia | ... | Unionidae | Unioninae | Anodontini | Alasmidontina | Utterbackia imbecillis
Specimen TMYERS_001: Images
Utterbackia imbecillis (Say, 1829), Bill Williams River, Bill Williams River National Wildlife Refuge, S of Cattail Marsh Near Lake Havasu, La Paz Co., Arizona, USA
