| Noun | 1. | guenon monkey - small slender African monkey having long hind limbs and tail and long hair around the facecatarrhine, Old World monkey - of Africa or Arabia or Asia; having nonprehensile tails and nostrils close together Cercopithecus, genus Cercopithecus - type genus of the Cercopithecidae: guenons Cercopithecus talapoin, talapoin - smallest guenon monkey; of swampy central and west African forests Cercopithecus aethiops, grivet - white and olive green East African monkey with long white tufts of hair beside the face Cercopithecus aethiops pygerythrus, vervet, vervet monkey - South African monkey with black face and hands African green monkey, Cercopithecus aethiops sabaeus, green monkey - common savannah monkey with greenish-grey back and yellow tail |