DIANA MONKEY, a West African representative of the guenon monkeys taking its name, Cercopithecus diana, from the presence of a white crescent on the forehead; another characteristic feature being the pointed white beard.
PLUTO MONKEY, a guenon, Cercopithecus (Mona) leucampyx, nearly allied to the MONA, which takes its name from the black fur of the under-parts, passing into blackish grey on the head and back.
GREEN MONKEY, a west African representative of the typical group of the guenon monkeys technically known as Cercopithecus callitrichus, taking its name from the olive-greenish hue of the fur of the back, which forms a marked contrast to the white whiskers and belly.
GRIVET, a monkey, Cercopithecus sabaeus, of the guenon group, nearly allied to the green monkey.
VERVET, a Central and South African monkey, known as Cercopithecus pygerythrus.