Jentink's Flying Squirrel

Jentink's flying squirrel is a small nocturnal squirrel with a gliding membrane between the limbs, dark grey-brown to blackish upperparts and whitish to buff underparts. It was long confused with the red-cheeked flying squirrel, Hylopetes lepidus, and current records should follow revised species limits (Mammal Diversity Database; specialist squirrel taxonomy).

It occurs on the Malay Peninsula, Sumatra and Borneo, reaching southern Thailand. Lowland rainforest is primary habitat, though moderate disturbance may be tolerated. It glides between trees and feeds on plant material; securely documented species-specific life-history details remain scarce (specialist taxonomic accounts). No national category is stated because it is absent under this name from Thailand Red Data 2025.