| 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 | ... | Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina genus Alasmidonta Say, 1818: species
11 available nominal genus synonyms (21 total synonyms) | cladomics  Alasmidonta arcula (Lea, 1838)
syonymy (1 available, 1 total) | specimens (2 + 13 Genbank vouchers)
Range: Altamaha River, Georgia, USA. (North America)
Genbank sequences: 16S, 18S, 5.8S, COI, ITS1, ND1, other
IUCN Red List: Endangered A2ce
NatureServe: G2
other links: MolluscaBase
| Alasmidonta atropurpurea (Rafinesque, 1831)
syonymy (1 available, 1 total) | specimens (1)
Range: Cumberland River, Ketucky and Tennessee, USA. (North America)
IUCN Red List: Endangered B2ab(i,ii,iii)
NatureServe: G1
other links: MolluscaBase |  Alasmidonta marginata Say, 1818
syonymy (7 available, 11 total) | specimens (3 + 1 Genbank voucher)
Range: Widespread in the Interior Basin, including the Great Lakes, USA and Canada. Introduced to the Hudson River via the Erie Canal, although assumed to be native to the Susquehanna. (North America)
Genbank sequences: 16S, 28S, COI, ND1, other
IUCN Red List: Least Concern
NatureServe: G4
other links: MolluscaBase
| Alasmidonta mccordi Athearn, 1964
syonymy (1 available, 2 total) | specimens (1)
Range: Coosa River, Alabama, USA. Extinct. (North America)
IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase |  Alasmidonta raveneliana (Lea, 1834)
syonymy (2 available, 2 total) | specimens (1)
Range: Tennessee River, USA. (North America)
Genbank sequences: 18S, COI, ITS1, ND1, other
IUCN Red List: Critically Endangered A2ac
NatureServe: G1
other links: MolluscaBase
| Alasmidonta robusta Clarke, 1981
syonymy (1 available, 1 total) | specimens (1)
Range: Catawba Basin, North and South Carolina, USA. Extinct. (North America)
IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase |  Alasmidonta triangulata (Lea, 1858)
syonymy (1 available, 1 total) | specimens (1 + 5 Genbank vouchers)
Range: Apalachicola and Chipola rivers, Alabama, Georgia, and Florida, USA. (North America)
Genbank sequences: 16S, 18S, 5.8S, COI, ITS1, ND1, other
IUCN Red List: Endangered B2ab(i,ii,iii,iv)
NatureServe: G1
other links: MolluscaBase
|  Alasmidonta undulata (Say, 1817)
syonymy (5 available, 8 total) | specimens (1)
Range: From Nova Scotia, Canada south to Georgia, USA. (North America)
Genbank sequences: 16S, COI, ND1, other
IUCN Red List: Least Concern
NatureServe: G4
other links: MolluscaBase
| Alasmidonta uwharriensis Whelan, Perkins & Mays in Whelan et al., 2023
syonymy (1 available, 1 total) | specimens (0)
Range: Pee Dee River, Atlantic Slope, North Carolina, USA (North America)
Genbank sequences: 18S, COI, ITS1, ND1, other
NatureServe: G1
other links: MolluscaBase | Alasmidonta varicosa (Lamarck, 1819)
syonymy (2 available, 4 total) | specimens (2)
Range: From Nova Scotia, Canada south to Georgia, USA. (North America)
Genbank sequences: 18S, COI, ITS1, mtGenome, ND1, other
IUCN Red List: Vulnerable A2bc
NatureServe: G3
other links: MolluscaBase |  Alasmidonta wrightiana (Walker, 1901)
syonymy (1 available, 1 total) | specimens (1)
Range: Ochlockonee River, Florida, USA. Extinct. (North America)
IUCN Red List: Extinct
NatureServe: GH
other links: MolluscaBase
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