The crested mona monkey[1], also called the golden-bellied monkey, golden-bellied guenon, or crowned guenon, is a species of African primate in the Cercopithecidae family in west-central Africa.
- Although sexually dimorphic in size, males and females display similar coloration and patterning.
- Its brown fur is mottled with gray, and the undersides of its arms, legs, and base of the tail are all black.
- The belly rump and inside of the legs are golden yellow. Their faces are mostly gray or dark blue, with a pink snout covered in white hair.
- The hair surrounding the face is yellow, with broad black streaks running from the side of the eyes to the temples and down the middle of the forehead.
- This creates a small ridge that gives the crowned monkeys their alternate common name.