Eoglaucomys fimbriatusKashmir flying squirrel

Geographic Range

The range of Eoglaucomys fimbriatus extends from Afghan to Kashmir and Punjab, India, along the edge of the Himalayas (Niethammer, 1990).

Habitat

Eoglaucomys fimbriatus resides in fir, spruce and cedar forests and chesnut oak forests in the mountains of the northwest Himalayas (Niethammer, 1990). It lives at elevations between 1800 and 3600m (Wilson and Reeder, 1993).

Physical Description

The body length of Eoglaucomys fimbriatus ranges from 24 to 31 cm. Tail length varies between 25 and 33 cm. It has an average shoulder height of 30 cm (Niethammer, 1990). The genus Hylopetes is distinguished from other flying squirrels by the presence of four planar footpads at the base of each digit, the absence of a lateral metatarsal pad, and the prominence of the medial pad. Among the defining dental characteristics is a unicuspid third upper premolar. Hylopetes teeth typically have pitted and grooved enamel (Thorington et al., 1993). The dental formula is 1/1 0/0 2/2 3/3. Eoglaucomys fimbriatus deviates from other members of its genus in lacking a tail membrane. It also exhibits a shorter membrane spur (approximately 4 cm long) than most flying squirrels. Its snout is long and grey. The coat is also grey, and the tail is striped. The fur of E. fimbriatus is generally less fuzzy than other members of Hylopetes. Another distinguishing trait is the presence of a thumb stump with a nail-like claw. It has large, reflecting eyes (Niethammer, 1990).

Reproduction

Eoglaucomys fimbriatus gives birth to 2 to 4 young at a time (Niethammer, 1990). Though little specific information is available on E. fimbriatus, a close relative, H. lepidus, exhibits no specific reproduction time. Reproduction occurs throughout the year. However, females are sychronized within a population. Gestation lasts about 40 days (Nowak, 1991)

  • Key Reproductive Features
  • gonochoric/gonochoristic/dioecious (sexes separate)
  • sexual

Behavior

Eoglaucomys fimbriatus is a nocturnal animal. It spends its days roosting in the holes of trees (Niethammer, 1990).

Communication and Perception

Food Habits

Eoglaucomys fimbriatus feeds on the seeds of fir and spruce trees and on the acorns of Baloot oak trees.

Conservation Status

Although E. fimbriatus has no special status, it is presumambly threatened by extensive forest exploitation within its relatively small range (Niethammer, 1990).

Other Comments

A significant predator of Eoglaucomys fimbriatus is the Charsa marten (Niethammer, 1990).

Contributors

Anjali Goswami (author), University of Michigan-Ann Arbor.

Glossary

bilateral symmetry

having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.

chemical

uses smells or other chemicals to communicate

endothermic

animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Convergent in birds.

forest

forest biomes are dominated by trees, otherwise forest biomes can vary widely in amount of precipitation and seasonality.

motile

having the capacity to move from one place to another.

native range

the area in which the animal is naturally found, the region in which it is endemic.

oriental

found in the oriental region of the world. In other words, India and southeast Asia.

World Map

sexual

reproduction that includes combining the genetic contribution of two individuals, a male and a female

tactile

uses touch to communicate

References

Niethammer, J. 1990. Grzimek's Encyclopedia of Mammals, Vol. 3. McGraw Hill Publishing Co. New Jersey. pgs. 96-97, 101-103.

Nowak, R.K. 1991. Walker's Mammals of the World. Johns Hopkins University Press. Baltimore. pgs. 613-614.

Thorington, R.W., A.L. Musante, C.G. Anderson, and K. Darrow. 1993. Validity of three genera of flying squirrels: Eoglaucomys, Glaucomys, and Hylopetes. Journal of Mammalology, vol. 77(1): pgs. 69-83.

Wilson, D.E. and D.M. Reeder. 1993. Mammal Species of the World. Second edition. Smithsonian Institution Press. Washington, D.C. pgs. 468-469.