Jentink's squirrel has pale-speckled brown upperparts, a creamy underside, and a long, thin tail. It is active by day and uses the crowns of small trees in montane forest.
The upperparts are pale-speckled brown, with creamy fur over gray bases beneath. Its long, thin tail looks dark-and-pale banded because of reddish hairs. Creamy-white markings form a moustache-like line, eye-rings, and pale edges on the ears.
It is diurnal and active in the crowns of small trees in montane forests.
An extinction-risk assessment has not been added yet.