Collared mangabey  (Cercocebus torquatus)

The large slate-grey collared mangabey is named for the white collar that surrounds a prominent chestnut-red cap (2). Large blackish ears protrude through the white collar, and the fur on the underside of the slender body is also white (2). Striking white eyelids are conspicuous against the collared mangabey's black face (2), and are the reason why some refer to it as the ‘four-eyed monkey' (4). Like all mangabeys, the dark grey tail is longer than the body (5), and is frequently held with the white tip hovering over the head (2).