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- n. Any of the Cercopithecidae.
Sorry, no etymologies found.
Mangabeys are an entirely African assemblage of cercopithecid monkeys, traditionally grouped together in the genus Cercocebus Geoffroy Saint-Hilaire, 1812.
Furthermore, outgroup comparison (with macaques, for example) indicates that some of these characters are primitive for the cercopithecid clade that includes these species (Papionina).