MUSSELp

MUSSELpdb

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Unionidae

Margaritiferidae

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Species & Genus Richness by
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Species Richness & Endemism by
Geography

Data last updated
Mon 1 Dec 2025

Bivalvia | Unionoida | Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina

genus Utterbackiana Frierson, 1927: species

2 available nominal genus synonyms (3 total synonyms) | cladomics

Included Species

Decorative image of a representative of Utterbackiana couperiana

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

Decorative image of a representative of Utterbackiana implicata

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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