The smoky flying squirrel (''Pteromyscus pulverulentus'') is a species of

rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are n ...

in the family

Sciuridae Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrels. Squ ...

. It is

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ...

within the genus ''Pteromyscus''. It is found in parts of Brunei, Indonesia, Peninsular Malaysia, and southern Thailand, but its range may be more extensive than currently mapped. Their natural

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

is subtropical or tropical dry

forest A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' ...

s. It is listed as an endangered species because of estimated population loss of 50% in past and future, judging from extensive and rapid

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

. Its average body length ranges from 22 centimetres to 29 centimetres (cm). Their tails range from 18 to 23 centimetres, feet range from 38 to 45 millimetres (mm), and ears range from 17 to 23 millimetres. In total, the smoky flying squirrel weights approximately 5 to 9 ounces (oz). According to records of sightings from

Borneo Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and e ...

and Malaysia, the species is only rarely sighted even in primary/pristine forest, although it lives mainly in these conditions. A threat to the smoky flying squirrel population is habitat loss due to low elevational range, restricting or preventing long-distance gliding needed to maintain a large range. Smoky flying squirrels usually eat fruits, nuts, and fungi found on nocturnal forays through the trees.

References

Mammals described in 1873 Taxa named by Albert Günther Flying squirrels Mammals of Borneo Mammals of Brunei Mammals of Thailand Rodents of Indonesia Rodents of Malaysia Taxonomy articles created by Polbot {{Squirrel-stub