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Ceylonthelphusa cavatrix

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA ARTHROPODA MALACOSTRACA DECAPODA GECARCINUCIDAE

Scientific Name: Ceylonthelphusa cavatrix
Species Authority: (Bahir, 1998)
Taxonomic Notes: This species was formerly included in the Parathelphusidae but has recently been reassigned to the Gecarcinucidae; Parathelphusidae is now regarded as a junior synonym of Gecarcinucidae (Klause et al. in press).

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): Darwall, W. (IUCN Freshwater Biodiversity Assessment Unit), Pollock, C.M. (IUCN Red List Unit) and McIvor, A.
Justification:
Listed as Endangered because it is known from only three sites, its extent of occurrence and area of occupancy are 10 km², and although it is found in a protected area, this area is still subject to degradation from human impacts implying a continuing loss of habitat quality.
History:
2006 Not Evaluated (IUCN 2006)
2006 Not Evaluated

Geographic Range [top]

Range Description: Sri Lanka: Knuckles Mountains (Pathanegala near Puwakpitea, 07.33°N, 80.44°E, 10 km²) (Bahir 1998, Ng and Tay 2001). Conservation assessment of Bahir et al. (2005) indicates that it is present in three localities, other two locations not given.
Countries:
Native:
Sri Lanka
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Abundance of the species at site of occurrence: rare
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Under moist stones and wet soil about 40 cm beneath ground level, at a small waterfall
Systems: Freshwater

Threats [top]

Major Threat(s): Habitat loss and pollution. Found in a protected area administered by Forest Department, but this PA is subject to degradation because of direct human impacts.

Conservation Actions [top]

Conservation Actions: No conservation measures are known to be in place for this species but it is found in a protected area.

Citation: Esser, L. and Cumberlidge, N. 2008. Ceylonthelphusa cavatrix. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 21 September 2014.
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