Bangka Island treeshrew
The Bangka Island treeshrew (Tupaia discolor), also known as the Bangkan treeshrew, is a treeshrew species within the Tupaiidae. It was previously listed as a junior synonym to Tupaia glis, but was raised up to species status in 2013. It is only found on Bangka Island, which is off the coast of Sumatra. While there is no study yet about its habitat, it may be similar to T. glis's which resides in primary dipterocarp forest. It is likely that it is threatened by local deforestation. References 

Treeshrews
Endemic fauna of Indonesia
Mammals of Indonesia