The roloway monkey is similar to other species of guenons. The guenons ( or ) are the genus Cercopithecus of Old World monkeys. Angolan talapoins do not show any territoriality, which is unlike their close relatives the guenons. Unlike the closely related guenons, they do not have any territorial behaviors. Unlike the closely related guenons, "Chlorocebus" species are not primarily forest dwellers. Guenons, the largest group of African primates, are very colorful. New additions for 2014 included cotton-top tamarins and Wolf's guenons. Phylogenetically, it is a sister clade to the guenons, but differs in dentition and habits. Among cercopithecines, forest guenons such as Wolf's mona monkey have very developed cheek pouches. Recently, red colobus monkeys and red-tailed guenons have been identified as natural hosts for SHFV. In guenons, selection is responsible for the evolution of predator-specific alarm calls from loud calls.