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Lepidothelphusa cognetti

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA ARTHROPODA MALACOSTRACA DECAPODA GECARCINUCIDAE

Scientific Name: Lepidothelphusa cognetti
Species Authority: (Nobili, 1903)
Taxonomic Notes: Bott (1970) included this species in the subfamily Liotelphusinae. Yeo et al. (2007) transferred it to the subfamily Gecarcinucinae Rathbun, 1904.

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-01-01
Assessor/s: Esser, L. and Cumberlidge, N.
Reviewer/s: Ng, P. and Yeo, D. and McIvor, A.
Justification:
The assessment of Ng & Yeo (2007) is followed here. Listed as Endangered because its extent of occurrence is estimated as 500 km² and its area of occupancy as 50 km², all individuals are in fewer than five locations (known from two sites only), and there is continuing decline in the extent and quality of its habitat.

Geographic Range [top]

Range Description: Malaysia: East Malaysia, Sarawak (Island of Borneo). This species is known from only two locations in the western corner of Borneo: Mount Penrissen, in western Sarawak, and Bau, a gold mining town in the Kuching Division of Sarawak. It possibly occurs more widely than current records suggest, especially in areas between the two known sites. There are no recent records, probably due to lack of collection work within its range.
Countries:
Native:
Malaysia (Sarawak)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: No studies have been conducted on the population levels of this species, and the population size and trends are unknown.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Semi-terrestrial to aquatic. Associated with sandstone areas. Its biology is not well-known, but has also been found in caves and near karst areas.
Systems: Freshwater

Threats [top]

Major Threat(s): The main threat to this species is habitat loss and degradation primarily as a result of logging. Much of the suitable habitat within its range around Mount Penrissen has recently been converted into a golf course and to cultivated land. An additional threat from deforestation is the resultant sedimentation of the streams where it lives.

Conservation Actions [top]

Conservation Actions: Conservation of forests and monitoring of pollution levels in Penrissen Mountains and Bau areas is recommended. The effective preservation of hilly rain forest in the regions of the two known localities is essential. In addition, further survey work in the hilly border area of Sarawak and Kalimantan is necessary and to help provide a better indication of the species' current population status.
Citation: Esser, L. and Cumberlidge, N. 2008. Lepidothelphusa cognetti. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 21 April 2014.
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