Oziothelphusa ritigala


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Oziothelphusa ritigala
Species Authority: Bahir & Yeo, 2005
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: Vulnerable D2 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.
Listed as Vulnerable because it is found in only two locations and there are threats from habitat degradation. Its extent of occurrence is less than 900 km². However its populations are locally strong, and it can live in human modified habitats.
2006 Not Evaluated (IUCN 2006)
2006 Not Evaluated

Geographic Range [top]

Range Description: Sri Lanka: Only known from Ritigala and Mundel, in the north central dry zone of Sri Lanka.
Sri Lanka
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Frequency of species at sites: common.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Found in deep burrows in rice-field embankments and adjacent stream margins and in the banks of the canals and streams.
Systems: Freshwater

Threats [top]

Major Threat(s): Habitat loss and pollution.

Conservation Actions [top]

Conservation Actions: No conservation measures are known to be in place for this species. It is found in a protected area administered by Department of Wildlife Conservation and subject to degradation (direct human impacts).

Citation: Esser, L. and Cumberlidge, N. 2008. Oziothelphusa ritigala. The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 02 April 2015.
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