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Xenodermus javanicus

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA REPTILIA SQUAMATA XENODERMATIDAE

Scientific Name: Xenodermus javanicus
Species Authority: Reinhardt, 1836
Common Name(s):
English Rough-backed Litter Snake

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Date Assessed: 2011-09-01
Assessor(s): Wogan, G., Grismer, L. & Chan-Ard, T.
Reviewer(s): Tognelli, M. & Bowles, P.
Justification:
This species faces no major threats and is geographically widespread. It is therefore listed as Least Concern.

Geographic Range [top]

Range Description: This species occurs from extreme southern Myanmar southward to Sundaland (Sumatra, Java, and Borneo). Its presence in Myanmar is marginal , where it is known only from an old record taken at Victoria Point (= Kawthaung) (Smith 1943), a border town at the southernmost tip of mainland Myanmar. There is one record from southern Thailand, from Sai Kao waterfall in Pattani reported by Taylor (1965), but there are no more recent records from this country. It is therefore considered rare ar the northern limit of its range (southern Myanmar and southern Thailand).
Countries:
Native:
Brunei Darussalam; Indonesia; Malaysia; Myanmar; Thailand
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The species is seldom encountered, although it is common in Java (David and Vogel 1996). As it frequents irrigated cultivated fields and rice fields (Smith 1943; David and Vogel 1996) it may be increasing in population size.
Population Trend: Increasing

Habitat and Ecology [top]

Habitat and Ecology: The species is found from sea level to up to 1,300 m elevation, but is most common between 500 and 1,100 m. It is semi-fossorial and occurs in damp areas near water, including forests, swamps, and marshes, and especially rice fields. It feeds only on frogs. The species is oviparous and lays 2-4 eggs (Smith 1943, David and Vogel 1996). In Peninsular Malaysia it is found in swampy areas and streams up to 400 metres above sea level.
Systems: Terrestrial; Freshwater

Use and Trade [top]

Use and Trade: This species is not used or traded.

Threats [top]

Major Threat(s): No major threats are apparent to this semi-fossorial, secretive species that is tolerant of wet agricultural lands such as rice fields. The species and its frog prey may however be susceptible to agricultural pollutants such as fertilizers and pesticides.

Conservation Actions [top]

Conservation Actions: No conservation actions are in place.

Citation: Wogan, G., Grismer, L. & Chan-Ard, T. 2012. Xenodermus javanicus. The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 20 December 2014.
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