Lemurs are an ancient form of primate called prosimians.
In particular, Black and White Ruffed Lemurs have a black face, crown, shoulders, hands, feet and tail. There is a slight grey smudge on the nose. The ruff around the neck, arms, legs and rear half of the body are white. The head-body length is about 18 inches and the tail length is about 20 inches. The family shares the typical primate trait of forward facing eyes and binocular vision though their binocular field is somewhat smaller than that of the monkey.