| 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 Utterbackiana Frierson, 1927: species
2 available nominal genus synonyms (3 total synonyms) | cladomics  Utterbackiana couperiana (Lea, 1840)
syonymy (2 available, 5 total) | specimens (1)
Range: From the Cape Fear River of North Carolina south to Florida, USA. (North America)
Genbank sequences: 16S, 5.8S, COI, ITS1, ND1
NatureServe: G4
other links: MolluscaBase
| Utterbackiana hartfieldorum (Williams, Bogan & Garner, 2009)
syonymy (1 available, 1 total) | specimens (0)
Range: From the Escambia River, Florida west to the Pearl River, Louisiana, USA. (North America)
Genbank sequences: 5.8S, COI, ITS1, ND1
NatureServe: G4
other links: MolluscaBase | Utterbackiana heardi (Gordon & Hoeh, 1995)
syonymy (2 available, 2 total) | specimens (1 + 2 Genbank vouchers)
Range: Apalachicola and Ochlockonee rivers, Florida and Georgia, USA. (North America)
Genbank sequences: 18S, 5.8S, COI, ITS1, ND1, other
NatureServe: G3
other links: MolluscaBase |  Utterbackiana implicata (Say, 1829)
syonymy (4 available, 8 total) | specimens (3)
Range: From New Brunswick, Candada south to Maryland, USA. (North America)
Genbank sequences: COI, COII M-type, ITS1, ND1
IUCN Red List: Least Concern
NatureServe: G5
other links: MolluscaBase
|  Utterbackiana suborbiculata (Say, 1831)
syonymy (2 available, 2 total) | specimens (2 + 1 Genbank voucher)
Range: Widespread in the Interior Basin and rivers draining to the Gulf of Mexico, USA. (North America)
Genbank sequences: 16S, 5.8S, COI, ITS1, ND1
NatureServe: G5
other links: MolluscaBase
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