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Villosa trabalis

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA MOLLUSCA BIVALVIA UNIONOIDA UNIONIDAE

Scientific Name: Villosa trabalis
Species Authority: (Conrad, 1834)
Common Name(s):
English Cumberland Bean, Cumberland Bean Pearly Mussel, Purple Bean

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1+2c ver 2.3
Year Published: 2000
Date Assessed: 2000-06-30
Annotations:
Needs updating
Assessor(s): Bogan, A.E. & Seddon, M.B. (Mollusc Specialist Group)
Reviewer(s): Seddon, M.B. (Mollusc Red List Authority)
Justification:
There are a few records of isolated populations of very low numbers for this species. A viable population is still present in Hiwawa County and it is viewed as single locality with less than 100 km² of river habitat that is in decline.
History:
1996 Not Evaluated
1994 Endangered (Groombridge 1994)
1990 Endangered (IUCN 1990)
1988 Endangered (IUCN Conservation Monitoring Centre 1988)
1986 Endangered (IUCN Conservation Monitoring Centre 1986)

Geographic Range [top]

Countries:
Native:
United States (Alabama, Kentucky, Tennessee)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: This species occupies fast flowing, small streams and rivers with a gravel substrate with some sand on riffle areas.
Systems: Freshwater

Threats [top]

Major Threat(s): It is threatened by habitat loss due to acid mine drainage and dams.

Citation: Bogan, A.E. & Seddon, M.B. (Mollusc Specialist Group) 2000. Villosa trabalis. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 18 September 2014.
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