The moustached monkey (Cercopithecus cephus) is an arboreal guenon that inhabits lowland tropical rainforests of Central Africa. It is characterized by vivid coloration, including a dark bluish face with white moustachial markings, yellow facial areas, and a reddish tail. Diurnally active, it feeds primarily on fruits and also consumes seeds, leaves, and eggs. It lives in matrilineal groups of 10–40 individuals with one adult male and multiple females; breeding occurs with mating from July to September, a gestation of about 170 days. Its conservation status is Near Threatened.