- Latin Name: Cercopithecus nictitans
- Bioko's Subspecies: Cercopithecus nictitans martini
- IUCN Status: Vulnerable
- Captive Population: 17 at the species level, but only one of the subspecies, according to ISIS.
A large, arboreal monkey with a long tail, the putty-nosed guenon has olive and black fur over its entire body except for a white spot nose, its most striking feature.
The putty-nosed guenon lives in groups of 12-30 females who defend a territory and are accompanied by a single adult male. They eat fruits, seeds, flowers, foliage and invertebrates.
The putty-nosed guenon is known locally as the “cowardly monkey” because it is more often heard -- the “pee-oow” alarm call -- than seen. On Bioko it is found in lowland forests. This species has a wide range on mainland Africa, making it less threatened than some of the other Bioko Island monkeys.
Cronin, D. T., D. Bocuma Meñe, T. B. Butynski, J. M. E. Echube, G. W. Hearn, S. Honarvar, J. R. Owens, and C. P. Bohome. 2010. Opportunities Lost: The Rapidly Deteriorating Conservation Status of the Monkeys on Bioko Island, Equatorial Guinea (2010). A Report to the Government of Equatorial Guinea by the Bioko Biodiversity Protection Program, Drexel University, Philadelphia, PA. 40pp.