Little white-toothed rat
| Little white-toothed rat | ||||||||||||
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| Scientific name | ||||||||||||
| Berylmys berdmorei | ||||||||||||
| ( Blyth , 1851) |
The small white-toothed rat ( Berylmys berdmorei ) is a species of mammal from the genus of the white-toothed rat ( Berylmys ) within the rodents (Rodentia). It occurs in Southeast Asia from southern China to southern Myanmar to southern Vietnam .
features
The small white-tooth rat reaches a head-torso length of 17.5 to 22.5 centimeters and a tail length of 13.4 to 19.2 centimeters with a weight of 118 to 235 grams. The rear foot length is 36 to 46 millimeters and the ear length 23 to 29 millimeters. The back fur is steel gray, the peritoneum white. The tail is slightly shorter than the rest of the body, the upper side is evenly dark brown and the underside varies from brown to gray spotted or spotted black. The top of the front and rear feet are grayish-white. The females have four pairs of teats , one each in the chest and stomach area and two in the groin area . The skull has a length of about 42 millimeters.
distribution
The small white-toothed rat occurs in Southeast Asia from southern China and southern Myanmar through Thailand , Laos and Cambodia to southern Vietnam . In China, it is only found in southern Sichuan . The height distribution ranges from the flatlands to around 1400 meters.
Way of life
The small white-toothed rat lives mainly in wooded areas of the flatlands and the lower mountain region up to heights of about 1400 meters, preferring sloping and swampy terrain. It is nocturnal and living on the ground; it spends the day in underground burrows. Occasionally it occurs in agricultural areas and can be viewed as a pest there, but generally it avoids proximity to humans and human settlements.
Systematics
The small white-tooth rat is classified as an independent species within the white-tooth rats (genus Berylmys ), which consists of four species. The first scientific description was made by Edward Blyth in 1851 from the Tanintharyi region around Mergui in the south of what is now Myanmar .
Hazard and protection
The species is listed by the International Union for Conservation of Nature and Natural Resources (IUCN) as not endangered (least concern). This is justified by the large distribution area, the assumed large populations of the species and the ability to adapt to habitat changes. There are no known threats to the existence of the species; in parts of the range it is even considered an agricultural pest.
supporting documents
- ↑ a b c d e Berdmore's White-Toothed Rat In: Andrew T. Smith, Yan Xie: A Guide to the Mammals of China. 2008, pp. 257-258.
- ↑ a b Berylmys berdmorei in the IUCN Red List of Threatened Species 2015-4. Listed by: Smith, CH Johnston, 2008. Retrieved December 22, 2015.
- ↑ a b Berylmys berdmorei ( Memento of the original from December 23, 2015 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. . In: Don E. Wilson , DeeAnn M. Reeder (Eds.): Mammal Species of the World. A taxonomic and geographic Reference. 2 volumes. 3. Edition. Johns Hopkins University Press, Baltimore MD 2005, ISBN 0-8018-8221-4 .
literature
- Berdmore's White-Toothed Rat In: Andrew T. Smith, Yan Xie: A Guide to the Mammals of China. 2008, pp. 257-258.