| Page last updatedWed 1 October 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 | Unionoida | Unionoidea | Unionidae | Ambleminae tribe PLEUROBEMINI Hannibal, 1912synonyms (2 nomina) | cladomics
 |  genus Elliptio Rafinesque, 1819: 30 Recent species. synonymy (4 available 
             nomina) | 45 species
 Distribution: North America, North Eurasia
 |  |  genus Elliptoideus Frierson, 1927: 1 Recent species. synonymy (1 available 
             nomina) | 1 species
 Distribution: North America
 |  |  genus Eurynia Rafinesque, 1820: 1 Recent species. synonymy (1 available 
             nomina) | 1 species
 Distribution: North America
 |  |  genus Fusconaia Simpson, 1900: 14 Recent species. synonymy (3 available 
             nomina) | 19 species
 Distribution: North America
 |  |  genus Hemistena Rafinesque, 1820: 1 Recent species. synonymy (3 available 
             nomina) | 1 species
 Distribution: North America
 |  |  genus Parvaspina Perkins, Johnson & Gangloff, 2017: 2 Recent species. synonymy (1 available 
             nomina) | 2 species
 Distribution: North America
 |  |  genus Plethobasus Simpson, 1900: 3 Recent species. synonymy (1 available 
             nomina) | 5 species
 Distribution: North America
 |  |  genus Pleurobema Rafinesque, 1819: 22 Recent species. synonymy (5 available 
             nomina) | 30 species
 Distribution: North America
 |  |  genus Pleuronaia Frierson, 1927: 3 Recent species. synonymy (1 available 
             nomina) | 4 species
 Distribution: North America
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