Hagen flying squirrel
| Hagen flying squirrel | ||||||||||||
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| Scientific name | ||||||||||||
| Petinomys hageni | ||||||||||||
| ( Jentink , 1888) |
The Hagen flying squirrel ( Petinomys hageni ) is a flying squirrel from the genus of the dwarf flying squirrel ( Petinomys ). It occurs on the islands of Sumatra as well as perhaps Borneo .
features
The Hagen flying squirrel reaches a head-torso length of 22 to 26 centimeters and a tail length of about 22 centimeters. The weight is around 350 to 400 grams. The back and head color is iron gray with brown hair tips, the top of the sliding skins is black with reddish brown hair tips. On the head there is a band of black-tipped hair from the nose around the eyes to the ears. The belly side is white with a reddish-brown tinge and the tail is brown.
Like all dwarf gliding squirrels, it has a hairy skin that connects the wrists and ankles and is enlarged by a fold of skin between the hind legs and the base of the tail. The sliding skin is muscular and reinforced at the edge, it can be tensed and relaxed accordingly in order to control the direction of the gliding flight.
distribution
The Hagen flying squirrel occurs on the Indonesian island of Sumatra and perhaps in the Indonesian part of Borneo (Kalimantan). The species is known from a site in the north of Sumatra, but the evidence from Borneo has been lost.
Way of life
No data or observations are available on the way of life of the Hagen flying squirrel. The localities are in the area of the tropical rainforest and it probably corresponds in its way of life to other flying squirrels; it is therefore tree-living, largely nocturnal and feeds on plants.
Systematics
The Hagen flying squirrel is classified as an independent species within the genus of the dwarf flying squirrel ( Petinomys ), which contains a total of nine species. The first scientific description comes from Fredericus Anna Jentink from 1888 on the basis of an individual from the former Sultanate of Deli in the northeast of the island of Sumatra. No subspecies are distinguished within the species.
Existence, endangerment and protection
The International Union for Conservation of Nature and Natural Resources (IUCN) does not include the Hagen flying squirrel in a hazard category due to a lack of data and accordingly lists it as "data deficient". It is only known from two localities and data on the population and distribution do not exist. It is not excluded that the species occurs more frequently on Sumatra and perhaps also on Borneo.
supporting documents
- ↑ a b c d e Richard W. Thorington Jr., John L. Koprowski, Michael A. Steele: Squirrels of the World. Johns Hopkins University Press, Baltimore MD 2012; P. 125. ISBN 978-1-4214-0469-1
- ↑ a b c Petinomys hageni in the IUCN Red List of Threatened Species 2014.1. Posted by: C. Francis, M. Gumal, 2008. Retrieved June 20, 2014.
- ↑ a b c Don E. Wilson & DeeAnn M. Reeder (eds.): Petinomys hageni in Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed).
literature
- Richard W. Thorington Jr., John L. Koprowski, Michael A. Steele: Squirrels of the World. Johns Hopkins University Press, Baltimore MD 2012; P. 125. ISBN 978-1-4214-0469-1
Web links
- Petinomys hageni inthe IUCN Red List of Threatened Species 2014.1. Posted by: C. Francis, M. Gumal, 2008. Retrieved June 20, 2014.