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 Cercocebus atys (Audebert 1797) [Simia] atys Audebert 1797 , Hist. Nat. Singes Makis, Vol. 4, 2: 13 . Type Locality: West Africa. Vernacular Names: Sooty Mangabey . Subspecies: : Subspecies Cercocebus atys subsp. atys Audebert 1797 Subspecies Cercocebus atys subsp. lunulatus Temminick 1853 Distribution: Senegal to Ghana . Conservation: CITES – Appendix II; U.S. ESA – Endangered as included in C. torquatus ; IUCN – Critically Endangered as C. a. lunulatus , otherwise Lower Risk (nt). Discussion: The subspecies lunulatus appears strongly distinct, and may be a separate species ( Groves, 2001 c :242-3 ). Separated from torquatus by Groves (2001 c :242) .