The endemic Thomas’s flying squirrel, Aeromys thomasi (Hose, 1900) of central Sarawak, around 1200m ASL.

Locally, Aeromys thomasi can be very common, in some areas even more common than the red giant flying squirrel (Petaurista petaurista). The Thomas’s flying squirrel has been recorded up to 1600m ASL, but seems to be more common between 700 and 1100m ASL. It seems that the Thomas’s flying squirrel is a pure fruit eater, in contrast to the red giant flying squirrel, which mainly eats young leaves and shoot tips.