| Page last updated
Thu 17 July 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!
Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini genus Potamilus Rafinesque, 1818: species
11 available nominal genus synonyms (25 total synonyms) | cladomics  Potamilus alatus (Say, 1817)
syonymy (3 available, 5 total) | specimens (6 + 6 Genbank vouchers)
Range: Widespread in the Interior, Nelson, and Great Lakes basins, North America. Introduced to the Hudson River on the Atlantic Slope and to China. (North America, East Asia)
Genbank sequences: 16S, 28S, 5.8S, COI, ITS1, mtGenome, mtGenome M-type, ND1, other, SRA
IUCN Red List: Least Concern
NatureServe: G5
other links: MolluscaBase
|  Potamilus amphichaenus (Frierson, 1898)
syonymy (1 available, 1 total) | specimens (2 + 30 Genbank vouchers)
Range: Texas, western Gulf Coastal Plain. (North America)
Genbank sequences: 16S, 28S, 5.8S, COI, ITS1, ND1, other, SRA
IUCN Red List: Endangered B1+2c
NatureServe: G2
other links: MolluscaBase
|  Potamilus capax (Green, 1832)
syonymy (2 available, 3 total) | specimens (2 + 1 Genbank voucher)
Range: Rare on the Ozark Plateau, Upper Mississippi and Ohio basins, USA. (North America)
Genbank sequences: 28S, 5.8S, COI, ITS1, ND1, other, SRA
IUCN Red List: Vulnerable A2ac
NatureServe: G3
other links: MolluscaBase
|  Potamilus fragilis (Rafinesque, 1820)
syonymy (9 available, 15 total) | specimens (7 + 21 Genbank vouchers)
Range: Widespread in the Interior, Great Lakes and Gulf Coastal Plain basins, North America. Introduced to the Northern Atlantic Slope. (North America)
Genbank sequences: 16S, 28S, 5.8S, COI, ITS1, ND1, other, SRA
IUCN Red List: Extinct (Medionidus mcglameriae), Least Concern (Leptodea fragilis)
NatureServe: G5
other links: MolluscaBase
|  Potamilus inflatus (Lea, 1831)
syonymy (2 available, 3 total) | specimens (1 + 19 Genbank vouchers)
Range: Mobile Basin, eastern Gulf Coastal Plain, USA. (North America)
Genbank sequences: 28S, 5.8S, COI, ITS1, ND1, other, SRA
IUCN Red List: Endangered A1c, B1+2c
NatureServe: G1
other links: MolluscaBase
|  Potamilus leptodon (Rafinesque, 1820)
syonymy (7 available, 10 total) | specimens (4 + 2 Genbank vouchers)
Range: Widespread in the Upper Mississippi and Ohio basins, USA. (North America)
Genbank sequences: 16S, 28S, 5.8S, COI, ITS1, mtGenome, ND1, SRA
IUCN Red List: Lower Risk/near threatened (Leptodea leptodon)
NatureServe: G1
other links: MolluscaBase
|  Potamilus metnecktayi R.I. Johnson, 1998
syonymy (1 available, 2 total) | specimens (19 + 4 Genbank vouchers)
Range: Rio Grande Basin, Tamaulipas, Mexico. (North America)
Genbank sequences: 28S, 5.8S, COI, ITS1, ND1, other, SRA
NatureServe: G1
other links: MolluscaBase
|  Potamilus ohiensis (Rafinesque, 1820)
syonymy (6 available, 12 total) | specimens (2 + 20 Genbank vouchers)
Range: Widespread in the Interior Basin and western Gulf Coastal Plain, USA. (North America)
Genbank sequences: 16S, 28S, 5.8S, COI, ITS1, ND1, SRA
IUCN Red List: Least Concern
NatureServe: G5
other links: MolluscaBase
|  Potamilus purpuratus (Lamarck, 1819)
syonymy (7 available, 11 total) | specimens (9 + 60 Genbank vouchers)
Range: Western Gulf Coastal Plain and Ozark Plateau, USA. (North America)
Genbank sequences: 16S, 28S, 5.8S, COI, COI M-type, COII, COII M-type, ITS1, ND1, other, SRA
NatureServe: G5
other links: MolluscaBase
| Potamilus streckersoni Smith, Johnson, Inoue, Doyle & Randklev, 2019
syonymy (1 available, 1 total) | specimens (1 + 31 Genbank vouchers)
Range: Endemic to the Brazos River, western Gulf Coastal Plain, Texas. (North America)
Genbank sequences: 28S, 5.8S, COI, ITS1, mtGenome, mtGenome M-type, ND1, other, SRA
NatureServe: GNR
other links: MolluscaBase | Potamilus wasatchensis (Cockerell, 1914) (Tertiary)
syonymy (1 available, 1 total) | specimens (0)
Range: Paleocene, North America. |
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