L'Hoest's monkey

L'Hoest's monkey, Allochrocebus lhoesti, also called the mountain monkey, is a guenon of the upper eastern Congo Basin. It has a short dark brown coat with a chestnut tint across the back, a dark belly, pale grey cheeks, a pale moustache and a prominent white bib. Males weigh about 6 kilograms and the smaller females about 3.5 kilograms, and the long tail is hooked at the tip. It lives in mountainous and moist primary forest of northeastern Democratic Republic of the Congo, Rwanda, Burundi and western Uganda, and also uses gallery forest, forest edges and cultivated land. Groups are small and dominated by related females with a single male. The animals are active by day, spend much of their time on the ground, and eat mainly fruit, mushrooms, herbs, roots and leaves, with occasional eggs, lizards and small birds. The species was first named Cercopithecus lhoesti by Philip Sclater in 1898, and Preuss's monkey is now treated as a separate species.