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!
For each taxon, information is provided regarding habitat, horizon (Recent unless otherwise listed), and diversity. We are actively working on the Recent freshwater mussels, and those are the taxa for which the data are most complete. For other Recent freshwater bivalves, the information largely follows Graf (2013). For other taxa (e.g., marine, fossil), any content is largely incidental.
Search the database pages:
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Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae tribe QUADRULINI Ihering, 1901
2 nominal tribes as synonyms | cladomics
 genus Cyclonaias Pilsbry in Ortmann & Walker, 1922: 10 Recent species.
4 generic synonyms | 11 valid species | cladomics
Distribution: North America. |
 genus Theliderma Swainson, 1840: 6 Recent species.
4 generic synonyms | 6 valid species | cladomics
Distribution: North America. |
 genus Uniomerus Conrad, 1853: 4 Recent species.
3 generic synonyms | 5 valid species | cladomics
Distribution: North America. |
 genus Quadrula Rafinesque, 1820: 3 Recent species.
4 generic synonyms | 6 valid species | cladomics
Distribution: North America. |
 genus Megalonaias Utterback, 1915: 2 Recent species.
2 generic synonyms | 2 valid species | cladomics
Distribution: Central America, North America. |
 genus Tritogonia Agassiz, 1852: 2 Recent species.
3 generic synonyms | 3 valid species | cladomics
Distribution: North America. |
genus Eonaias Marshall, 1929: fossil only.
1 generic synonym | 1 valid species | cladomics |
genus Proparreysia Pilsbry in Wanner, 1921: fossil only.
1 generic synonym | 12 valid species | cladomics |
genus Protamblema Modell, 1957: fossil only.
3 generic synonyms | 1 valid species | cladomics |
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