Babbali

Babbalis (Th."grimace-makers") were small, baboon-like monkeys which lived in the snowy northern lands of Middle-Earth.They had brown or white fur and were the northernmost kind of monkey known to men.

Notes:
Though simply called "Baboons" in the "Shade of the Sinking Plain"-sourcebook,the "Babbalis" are largely inspired by the japanese macaque.