Epioblasma haysiana

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	MOLLUSCA	BIVALVIA	UNIONOIDA	UNIONIDAE

Scientific Name:

Epioblasma haysiana

Species Authority:

(I. Lea, 1834)

Common Name/s:

English

–

Acorn Pearly Mussel, Acornshell

Synonym/s:

Dysnomia haysiana I. Lea, 1834

Taxonomic Notes:

Was listed in the 1996 IUCN Red List under the name Dysnomia haysiana.

Assessment Information [top]

Red List Category & Criteria:

Extinct ver 2.3

Year Published:

2000

Assessor/s:

Bogan, A.E. (Mollusc Specialist Group)

Reviewer/s:

Seddon. M.B. (Mollusc Red List Authority)

Justification:
Possibly became extinct due to pollution in the catchment.

History:

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

Geographic Range [top]

Range Description:	Cumberland and Tennessee River systems.
Countries:	Regionally extinct: United States (Alabama, Kentucky, Tennessee, Virginia)
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	Only known from one small stretch of river in the 1970s.

Population:

Only known from one small stretch of river in the 1970s.

Habitat and Ecology [top]

Habitat and Ecology:	Medium to large rivers, amongst riffle-beds in gravel and sand.
Systems:	Freshwater

Threats [top]

Major Threat(s):	Last subpopulation killed off by domestic sewage influxes.

Major Threat(s):

Last subpopulation killed off by domestic sewage influxes.

Bibliography [top]

	Baillie, J. and Groombridge, B. 1996. 1996 IUCN Red List of Threatened Animals. International Union for Conservation of Nature, Gland, Switzerland. Groombridge, B. (ed.). 1994. 1994 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK. Hilton-Taylor, C. 2000. 2000 IUCN red list of threatened species. IUCN, Gland, Switzerland and Cambridge, UK. Hilton-Taylor, C. 2000. 2000 IUCN Red List of Threatened Species. IUCN, Gland, Switzerland and Cambridge, UK. IUCN. 1990. 1990 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK. Wells, S.M., Pyle, R.M. and Collins, N.M. (compilers) 1983. The IUCN Invertebrate Red Data Book. IUCN, Gland, Switzerland and Cambridge, UK.

Baillie, J. and Groombridge, B. 1996. 1996 IUCN Red List of Threatened Animals. International Union for Conservation of Nature, Gland, Switzerland.

Groombridge, B. (ed.). 1994. 1994 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

Hilton-Taylor, C. 2000. 2000 IUCN red list of threatened species. IUCN, Gland, Switzerland and Cambridge, UK.

Hilton-Taylor, C. 2000. 2000 IUCN Red List of Threatened Species. IUCN, Gland, Switzerland and Cambridge, UK.

IUCN. 1990. 1990 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

Wells, S.M., Pyle, R.M. and Collins, N.M. (compilers) 1983. The IUCN Invertebrate Red Data Book. IUCN, Gland, Switzerland and Cambridge, UK.

Citation:	Bogan, A.E. 2000. Epioblasma haysiana. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 25 May 2012.
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