The Mona monkey is an Old World monkey that lives throughout Western Africa. This guenon lives in groups of up to 35 in tree living regions. It mainly feeds on fruit but sometimes eats insects and leaves.
The Mona monkey has brown agouti fur with a white rump. Its tail and legs are black. The face is blue-grey with a dark stripe across the face. The Mona monkey carries food in cheek pouches.