Flying squirrels are a tribe of 50 species of squirrels in the family Sciuridae. Despite their name, they are not in fact capable of full flight in the same way as birds or bats, but they are able to glide from one tree to another with the aid of a patagium, a furred skin membrane that stretches from wrist to ankle. Their long tails also provide stability as they glide. Anatomically they are very similar to other squirrels with a number of adaptations to suit their lifestyle; their limb bones are longer and their hand bones, foot bones, and distal vertebrae are shorter. Flying squirrels are able to steer and exert control over their glide path with their limbs and tail.
Sciurinae is a subfamily of squirrels, uniting the flying squirrels with certain related tree squirrels. Older sources place the flying squirrels in a separate subfamily (Pteromyinae) and unite all remaining sciurids into the subfamily Sciurinae, but this has been strongly refuted by genetic studies.
Jentink's duiker, also known as gidi-gidi in Krio and kaikulowulei in Mende, is a forest-dwelling duiker found in the southern parts of Liberia, southwestern Côte d'Ivoire, and scattered enclaves in Sierra Leone. It is named in honor of Fredericus Anna Jentink.
Hylopetes is a genus of flying squirrels. There are about 10 species.
The least pygmy squirrel, also known as the plain pygmy squirrel, is a species of rodent in the family Sciuridae. This plain olive-brown squirrel is endemic to forests, mostly below an altitude of 750 m (2,500 ft) but locally significantly higher, on the Southeast Asian islands of Borneo, Sumatra and Banggi. Together with the African pygmy squirrel, the least pygmy squirrel is the smallest squirrel in the world, having a total length of 10–14 cm (3.9–5.5 in) and a weight of 12–26 g (0.42–0.92 oz).
The lowland long-nosed squirrel is a species of rodent in the family Sciuridae. It is endemic to Sulawesi, Indonesia where its natural habitat is subtropical or tropical dry lowland grassland.
The Niobe ground squirrel is a species of rodent in the family Sciuridae. It is endemic to the mountains of western Sumatra, and eastern Java, in Indonesia. Its natural habitat is subtropical or tropical dry forests.
The Basilan flying squirrel is a species of rodent in the family Sciuridae. It is endemic to the Philippines. It is often confused with the mindanao flying squirrel.
Petinomys is a genus of flying squirrels. They are known commonly as the dwarf flying squirrels.
The whiskered flying squirrel is a species of flying squirrel. It is found in Indonesia and Malaysia.
Hagen's flying squirrel is a species of rodent in the family Sciuridae. It is endemic to Indonesia.
The Siberut flying squirrel is a species of rodent in the family Sciuridae. It is endemic to Indonesia. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
Temminck's flying squirrel is a species of rodent in the family Sciuridae. It is found in Indonesia, Malaysia, Myanmar, and Thailand.
Sundasciurus is a genus of rodent in the family Sciuridae. It contains 20 species:
The Davao squirrel is a species of rodent in the family Sciuridae. It is endemic to the Philippines.
The fraternal squirrel is a species of rodent in the family Sciuridae. It is endemic to Indonesia, found only in the Mentawai Archipelago, located off the west coast of Sumatra.
Jentink's squirrel is a species of rodent in the family Sciuridae. It is named in honor of the Dutch zoologist Fredericus Anna Jentink. It is found in Indonesia and Malaysia. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
The Palawan montane squirrel is a species of rodent in the family Sciuridae. It is endemic to the Philippines. Its natural habitat is subtropical or tropical dry forests.
The Vordermann's pipistrelle is a species of vesper bat found in Brunei Darussalam, Indonesia, and Malaysia. It was described in 1890 by the Dutch zoologist Fredericus Anna Jentink, who named it after its discoverer, the Dutch physician Adolphe Vorderman.
