| 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 | Unionida | Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina genus Pyganodon Crosse & Fischer, 1894: species
2 available nominal genus synonyms (3 total synonyms) | cladomics  Pyganodon cataracta (Say, 1817)
syonymy (12 available, 19 total) | specimens (6 + 1 Genbank voucher)
Range: New Brunswick, Canada south to the Altamaha River, Georgia, USA; and in the Apalachicola River, USA. (North America)
Genbank sequences: 16S, 28S, COI, COII M-type, ITS1, ND1, other
IUCN Red List: Least Concern
NatureServe: G5
other links: MolluscaBase
|  Pyganodon fragilis (Lamarck, 1819)
syonymy (8 available, 12 total) | specimens (7)
Range: Northern Atlantic Slope, Canada. (North America)
Genbank sequences: 16S, COI, COI M-type, COII M-type, ITS1
IUCN Red List: Least Concern
NatureServe: G4
other links: MolluscaBase
|  Pyganodon gibbosa (Say, 1824)
syonymy (1 available, 1 total) | specimens (0)
Range: Altamaha River, Georgia, USA. (North America)
IUCN Red List: Near Threatened
NatureServe: G3
other links: MolluscaBase
|  Pyganodon globosa (Lea, 1841)
syonymy (4 available, 8 total) | specimens (28)
Range: Central and southern Mexico (Central America)
|  Pyganodon grandis (Say, 1829)
syonymy (44 available, 68 total) | specimens (41 + 49 Genbank vouchers)
Range: Widespread in interior North America, from the Rio Grande to the Arctic. Invading east into the Atlantic Slope and west into the Pacific. (North America)
Genbank sequences: 16S, 16S M-type, 28S, 5.8S, COI, COI M-type, COII, COII M-type, ITS1, mtGenome, mtGenome M-type, ND1, other, SRA
IUCN Red List: Least Concern
NatureServe: G5
other links: MolluscaBase
|  Pyganodon lacustris (Lea, 1857)
syonymy (1 available, 2 total) | specimens (1)
Range: Interior and Great Lakes basins in Minnesota, Wisconsin, and Michigan, USA; also Quebec, Canada. (North America)
Genbank sequences: COI, COI M-type, COII M-type, ND1, other
IUCN Red List: Least Concern
NatureServe: G4
other links: MolluscaBase
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