1685.
Sort-furred Tree Mouse
(Typhlomys cinereus)
LC
Overview
Not a true dormouse, the Chapa pygmy dormouse is mouse-like in external appearance. Virtually nothing is known about the ecology of this species, which is known from only 14 specimens. Local people claim that cats will not eat it.
Urgent Conservation Actions
No official conservation recommendations have been made.
Distribution
Chapa, northern Vietnam.
Evolutionary Distinctiveness
Order: Rodentia
Family: Platacanthomyidae
Platacanthomyidae is a small family of rodents, which was previously considered to be a subfamily of the Muridae (rats, mice and gerbils). It contains just three species in two genera: Platacanthomys lasiurus (spiny dormouse), Typhlomys cinereus (Chinese dormouse) and T. chapensis (pygmy dormouse). These species are not true dormice. The evolutionary relationships of the Platacanthomyidae to the rest of the Muroidea remain very uncertain, although morphological studies indicate that members of this family are distinct from other murids.
Description
Size: 
Head and body length: 70-98 mm
Tail length: 95-135 mm
Weight: 18 g
The Chapa pygmy dormouse is mouselike in external appearance. It has prominent, sparsely haired ears, small eyes and long, slender feet. The fur is short, dense, soft and spineless. It is coloured dark grey above, and pale grey below and on the insides of the limbs. The hands are white and the feet are dusky. The long grey tail is sparsely furred above and scaly below. There is a distinct brush at the tip of the tail, made up of long white hairs.
Ecology
Virtually nothing is known about the ecology of this species. Local people claim that cats will not eat it.
Habitat
Found at elevations of 1,200-2,100 m in mountains covered in dwarfed, moss-laden deciduous trees and an undergrowth of small bamboo.
Distribution
Known from only 14 specimens from Chapa, northern Vietnam.
Population Estimate
Unknown.
Population Trend
Unknown.
Status
Classified as Critically Endangered (CR B1+2cd) on the 2006 IUCN Red List of Threatened Species.
Threats
Known from only a single locality, and its habitat is expected to decline.
Conservation Underway
There do not appear to be any conservation measures in place for this species.
Conservation Proposed
No official conservation recommendations have been made for this species.
References
Baillie, J. 1996. Typhlomys chapensis. In: IUCN 2006. 2006 IUCN Red List of Threatened Species. Downloaded on 01 December 2006.

Nowak, R.M. 1999. Walker's Mammals of the World. Sixth edition. The Johns Hopkins University Press, Baltimore and London.

Distribution map based on data provided by the IUCN Global Mammal Assessment.

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