Lesser Spot-Nosed Guenon
Lesser spot-nosed guenons have brown or bluish fur on their back and outer legs with white on their underside and inside their arms and legs. They have a black face with white mutton-chop cheeks and heart-shaped white spot on nose, hence their name. Their long tail is not prehensile but aids in balance and agility. The tail is also used to communicate moods and excitement, and the facial skin can “blush” as blood flow increases when excited.
The guenon’s excellent color vision helps it find ripe fruit while their large cheek pouches are used for storing food as it forages. The long tail aids in leaping through dense branches.
The spot-nosed guenon’s species name, petaurista means “springiest-tailed monkey,” describing the primate’s leaping ability. All guenons are diurnal (active during the day) and some live close to or with other guenon species. Spot-nosed Guenon is also called the forest guenon and is related to the Diana and De Brazza monkeys. The entire troupe of Spot-Nosed Guenons defends its territory, and females are often the fiercest fighters in group conflicts. Guenons are generally less aggressive than baboons and macaques. Communication includes vocal calls from chirps to loud booms, tail positions, facial expressions, and a complex language of jerky head motions. Head movements allow each individual to be seen in dense vegetation, as the white patches flash among the leaves. Illegal hunting for bush-meat trade is still a threat to survival of all old-world monkeys including the spot-nosed guenon.