Epioblasma propinqua

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	MOLLUSCA	BIVALVIA	UNIONOIDA	UNIONIDAE

Scientific Name:

Epioblasma propinqua

Species Authority:

(I. Lea, 1857)

Common Name/s:

English

–

Nearby Pearly Mussel, Nearby Pearlymussel, Tennessee Riffleshell

Synonym/s:

Dysnomia propinqua I. Lea, 1857

Plagiola propinqua (I. Lea, 1857)

Taxonomic Notes:

This species was historically placed in the genera Dysnomia and Plagiola (Johnson 1978). This species is currently place in the genus Epioblasma (Williams et al. 2008).

A list of synonyms for this species can be found on The MUSSEL project web site (Graf and Cummings 2011).

Assessment Information [top]

Red List Category & Criteria:

Extinct ver 3.1

Year Assessed:

2011

Assessor/s:

Cummings, K. & Cordeiro, J.

Reviewer/s:

Bohm, M & Collen, B.

Contributor/s:

Dyer, E., Soulsby, A.-M., Whitton, F., McGuinness, S., De Silva, R., Milligan, HT, Kasthala, G., Herdson, R., Thorley, J., McMillan, K. & Collins, A.

Justification:
Epioblasma propinqua has been assessed as Extinct, as it was last collected in 1901 and has not been recorded since.

History:

2000	–	Extinct
1996	–	Critically Endangered (Baillie and Groombridge 1996)
1994	–	Extinct (Groombridge 1994)
1990	–	Extinct (IUCN 1990)
1988	–	Extinct (IUCN Conservation Monitoring Centre 1988)
1986	–	Extinct (IUCN Conservation Monitoring Centre 1986)
1983	–	Extinct

Geographic Range [top]

Range Description:	This species is globally extinct. It was found historically in the lower Clinch and Holston Rivers and in the Tennessee River downstream from Knoxville to Muscle Shoals, northwestern Alabama, and was known from the Cumberland River at Nashville, Tennessee, the Wabash River at New Harmony, Indiana, and from the Ohio River at Cincinnati, Ohio (Parmalee and Bogan 1998). In Alabama, it historically occurred throughout the Tennessee River in Alabama, but has not been reported since the river was impounded (Mirarchi 2004). In Tennessee, it was formerly collected in the lower Clinch River and lower Holston River from Knoxville to the Tennessee/Alabama border. It was also known historically from the Cumberland River at Nashville and probably occurred throughout the mainstem of the Cumberland River (Parmalee and Bogan 1998). In Kentucky, it formerly occurred in the Ohio River (Cicerello and Schuster 2003). In Illinois, it occurred in the Middle Wabash, Little Vermillion, Little Wabash, and Lower Wabash drainages (Cummings et al. 1988, 1991). In Ohio, it was reported from Cincinnati in the Ohio River (Johnson 1978). It was also known from the Wabash River at New Harmony, Indiana (Johnson 1978).
Countries:	Regionally extinct: United States (Alabama, Illinois, Indiana, Kentucky, Ohio, Tennessee)

Range Description:

This species is globally extinct. It was found historically in the lower Clinch and Holston Rivers and in the Tennessee River downstream from Knoxville to Muscle Shoals, northwestern Alabama, and was known from the Cumberland River at Nashville, Tennessee, the Wabash River at New Harmony, Indiana, and from the Ohio River at Cincinnati, Ohio (Parmalee and Bogan 1998). In Alabama, it historically occurred throughout the Tennessee River in Alabama, but has not been reported since the river was impounded (Mirarchi 2004). In Tennessee, it was formerly collected in the lower Clinch River and lower Holston River from Knoxville to the Tennessee/Alabama border. It was also known historically from the Cumberland River at Nashville and probably occurred throughout the mainstem of the Cumberland River (Parmalee and Bogan 1998). In Kentucky, it formerly occurred in the Ohio River (Cicerello and Schuster 2003). In Illinois, it occurred in the Middle Wabash, Little Vermillion, Little Wabash, and Lower Wabash drainages (Cummings et al. 1988, 1991). In Ohio, it was reported from Cincinnati in the Ohio River (Johnson 1978). It was also known from the Wabash River at New Harmony, Indiana (Johnson 1978).

Countries:

Regionally extinct:

United States (Alabama, Illinois, Indiana, Kentucky, Ohio, Tennessee)

Population [top]

Population:	It historically occurred in the Tennessee River across northern Alabama and disappeared soon after impoundment of the Tennessee River, with the most recent material dating from 1901 (Williams et al. 2008). Morrison (1942) suggested the species may have begun its decline prehistorically, based on diminishing numbers in archaeological middens over time.

Population:

It historically occurred in the Tennessee River across northern Alabama and disappeared soon after impoundment of the Tennessee River, with the most recent material dating from 1901 (Williams et al. 2008). Morrison (1942) suggested the species may have begun its decline prehistorically, based on diminishing numbers in archaeological middens over time.

Habitat and Ecology [top]

Habitat and Ecology:	This species occurred in shoal habitat of large rivers (Parmalee and Bogan 1998).
Systems:	Freshwater

Threats [top]

Major Threat(s):	This species presumably became extinct due to habitat loss and degradation (A. Bogan pers. comm. 2010).

Major Threat(s):

This species presumably became extinct due to habitat loss and degradation (A. Bogan pers. comm. 2010).

Conservation Actions [top]

Conservation Actions:	Williams et al. (in press) lists this species as extinct according to the AFS assessment.

Conservation Actions:

Williams et al. (in press) lists this species as extinct according to the AFS assessment.

Citation:	Cummings, K. & Cordeiro, J. 2011. Epioblasma propinqua. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 09 February 2012.
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