| 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 | ... | 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 
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