Map_thumbnail_large_font

Villosa trabalis

Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_onStatus_ew_offStatus_ex_off

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
Annotations:
Needs updating
Assessor/s: Bogan, A.E. & Seddon, M.B. (Mollusc Specialist Group)
Reviewer/s: Seddon, M.B. (Mollusc Red List Authority)
Contributor/s:
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. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 23 May 2013.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please fill in the feedback form so that we can correct or extend the information provided