Colobus guereza kikuyuensis
Colobus monkeys have a head and body length of 20 to 28 inches, with a tail length of 24 to 40 inches. Their weight is 8 to 20 pounds though large males may reach 25 pounds. The legs are longer than the arms; the vestigial thumbs are only visible in the embryonic state. The large stomach functions like those of ungulates with food fermenting in the first two chambers. Their head is round, the face naked or sparsely haired; the muzzle is short and there are no cheek pouches. Long black fur covers the body. They have a white band across their face and a long white mantle across the shoulders to the lower back and a large white tuft at the end of the tail. Babies are white all over.