Order Primates Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 111 184 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Cercopithecus erythrogaster subsp. erythrogaster Gray 1866 Cercopithecus erythrogaster subsp. erythrogaster Gray 1866 , Proc. Zool. Soc. Lond., 1866: 169 . Type Locality: "West Africa"; restricted by Groves (2001 c :214) to Benin , Lama Forest .