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Taxonomy

Species & Genus Richness by
Taxonomy

Geography

Species Richness & Endemism by
Geography

Data last updated
Mon 1 Dec 2025

genus Epioblasma Rafinesque, 1831: species

9 available nominal genus synonyms (15 total synonyms) | cladomics

Included Species

Epioblasma ahlstedti Jones & Neves, 2010

syonymy (1 available, 2 total) | specimens (1)

Range: Duck River, Tennessee, USA (North America)

Genbank sequences: 16S, Cytb, ITS1, ND1
NatureServe: G1
other links: MolluscaBase

Decorative image of a representative of Epioblasma arcaeformis

Epioblasma arcaeformis (Lea, 1831)

syonymy (2 available, 2 total) | specimens (1)

Range: Tennessee and Cumberland rivers, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Epioblasma aureola Jones & Neves, 2010

syonymy (1 available, 2 total) | specimens (1)

Range: Tennessee River, USA. (North America)

Genbank sequences: 16S, Cytb, ITS1, ND1
NatureServe: G1
other links: MolluscaBase

Decorative image of a representative of Epioblasma biemarginata

Epioblasma biemarginata (Lea, 1857)

syonymy (1 available, 1 total) | specimens (1)

Range: Tennessee River, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma brevidens

Epioblasma brevidens (Lea, 1831)

syonymy (1 available, 2 total) | specimens (3 + 4 Genbank vouchers)

Range: Tennessee and Cumberland rivers, Cumberland Plateau, USA. (North America)

Genbank sequences: 16S, COI, Cytb, ITS1, ND1
IUCN Red List: Critically Endangered A1ce
NatureServe: G1
other links: MolluscaBase

Epioblasma capsaeformis (Lea, 1834)

syonymy (1 available, 2 total) | specimens (3 + 4 Genbank vouchers)

Range: Tennessee and Cumberland rivers, USA. (North America)

Genbank sequences: 16S, COI, Cytb, ITS1, ND1, other
IUCN Red List: Endangered A2ac; B1ab(i,ii,iii,iv,v)
NatureServe: G1
other links: MolluscaBase

Decorative image of a representative of Epioblasma cincinnatiensis

Epioblasma cincinnatiensis (Lea, 1840)

syonymy (1 available, 2 total) | specimens (2)

Range: Ohio Drainage, including the Tennessee, Cumberland, and Green rivers, USA. (North America)

NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma curtisii

Epioblasma curtisii (Frierson & Utterback in Utterback, 1916)

syonymy (1 available, 1 total) | specimens (1)

Range: Ozark Plateau, USA. (North America)

NatureServe: G1
other links: MolluscaBase

Epioblasma flexuosa (Rafinesque, 1820)

syonymy (3 available, 5 total) | specimens (2)

Range: Lower Ohio Basin, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma florentina

Epioblasma florentina (Lea, 1857)

syonymy (3 available, 3 total) | specimens (2)

Range: Cumberland and Tennessee rivers, USA. Extinct. (North America)

NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma gubernaculum

Epioblasma gubernaculum (Reeve, 1865)

syonymy (1 available, 1 total) | specimens (2)

Range: Tennessee River, USA. Extinct. (North America)

NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma haysiana

Epioblasma haysiana (Lea, 1834)

syonymy (2 available, 5 total) | specimens (1)

Range: Tennessee and Cumberland rivers, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma lenior

Epioblasma lenior (Lea, 1842)

syonymy (2 available, 2 total) | specimens (1)

Range: Cumberland and Tennessee rivers, Alabama, Kentucky, and Tennessee, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma lewisii

Epioblasma lewisii (Walker, 1910)

syonymy (2 available, 2 total) | specimens (1)

Range: Cumberland and Tennessee rivers, Alabama, Kentucky, and Tennessee, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma metastriata

Epioblasma metastriata (Conrad, 1838)

syonymy (2 available, 2 total) | specimens (1)

Range: Alabama and Tombigbee river systems, USA. (North America)

IUCN Red List: Critically Endangered A1ce
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma obliquata

Epioblasma obliquata (Rafinesque, 1820)

syonymy (7 available, 13 total) | specimens (2)

Range: Ohio basin and the central Great Lakes, North America. (North America)

Genbank sequences: 16S, COI
NatureServe: G1
other links: MolluscaBase

Decorative image of a representative of Epioblasma othcaloogensis

Epioblasma othcaloogensis (Lea, 1857)

syonymy (2 available, 4 total) | specimens (2)

Range: Upper Alabama basin, eastern Gulf Coastal Plain, USA. (North America)

IUCN Red List: Critically Endangered B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma penita

Epioblasma penita (Conrad, 1834)

syonymy (1 available, 1 total) | specimens (1)

Range: Lower Alabama and Tombigbee rivers, USA. (North America)

IUCN Red List: Critically Endangered A1c
NatureServe: G1
other links: MolluscaBase

Epioblasma perobliqua (Conrad, 1836)

syonymy (1 available, 1 total) | specimens (1)

Range: Ohio River Basin and the Great Lakes, Interior Basin, North America. (North America)

NatureServe: G1
other links: MolluscaBase

Decorative image of a representative of Epioblasma personata

Epioblasma personata (Say, 1829)

syonymy (3 available, 3 total) | specimens (3)

Range: Lower portions of the Ohio, Wabash and Tennessee rivers, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma propinqua

Epioblasma propinqua (Lea, 1857)

syonymy (1 available, 1 total) | specimens (2)

Range: Lower Ohio basin and Cumberland Plateau, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma rangiana

Epioblasma rangiana (Lea, 1838)

syonymy (4 available, 4 total) | specimens (3 + 2 Genbank vouchers)

Range: Widespread in the Ohio Basin and central Great Lakes, North America. (North America)

Genbank sequences: 16S, 28S, 5.8S, COI, Cytb, ITS1, ND1, other
NatureServe: G1
other links: MolluscaBase

Decorative image of a representative of Epioblasma sampsonii

Epioblasma sampsonii (Lea, 1861)

syonymy (1 available, 1 total) | specimens (2)

Range: Lower Ohio basin, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma stewardsonii

Epioblasma stewardsonii (Lea, 1852)

syonymy (1 available, 2 total) | specimens (1)

Range: Tennessee River, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma torulosa

Epioblasma torulosa (Rafinesque, 1820)

syonymy (7 available, 13 total) | specimens (5)

Range: Widespread in the Ohio Basin, North America. Extinct. (North America)

IUCN Red List: Critically Endangered A2ace
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma triquetra

Epioblasma triquetra (Rafinesque, 1820)

syonymy (6 available, 7 total) | specimens (2 + 2 Genbank vouchers)

Range: Widespread in the Interior and Great Lakes basins, North America. (North America)

Genbank sequences: 16S, 28S, COI, Cytb, ITS1, ND1
IUCN Red List: Endangered A2ce
NatureServe: G2
other links: MolluscaBase

Decorative image of a representative of Epioblasma turgidula

Epioblasma turgidula (Lea, 1858)

syonymy (3 available, 5 total) | specimens (4)

Range: Disjunct distribution in the Ozark and Cumberland plateaus, USA. Extinct. (North America)

IUCN Red List: Extinct
NatureServe: GX
other links: MolluscaBase

Decorative image of a representative of Epioblasma walkeri

Epioblasma walkeri (Wilson & Clark, 1914)

syonymy (1 available, 1 total) | specimens (1 + 2 Genbank vouchers)

Range: Cumberland River, USA. (North America)

Genbank sequences: 16S, COI, Cytb, ITS1, ND1
NatureServe: G1
other links: MolluscaBase

Epioblasma tyrrelli (Russell, 1931) (Cretaceous)

syonymy (1 available, 2 total) | specimens (0)

Range: Cretaceous, North America.

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