Order Artiodactyla 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 1 637 722 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Cephalophus rufilatus Gray 1846 Cephalophus rufilatus Gray 1846 , Ann. Mag. Nat. Hist., ser. 1, 18: 166 . Type Locality: " Sierra Leone , Village of Waterloo". Vernacular Names: Red-flanked Duiker . Distribution: Savanna zone in Benin , Burkina Faso , Cameroon , Central African Republic , S Chad , Côte d’Ivoire, NE Dem. Rep. Congo , Gambia , Guinea , Guinea Bissau , S Mali , S Niger , Nigeria , Senegal , Sierra Leone , SW Sudan , Togo , and NW Uganda . Conservation: IUCN – Lower Risk (cd). Discussion: Known from a specimen collected by Adanson in Senegal as "la grimme" ( Buffon, 1764:307 , 329), and described as " Antilope grimmia " by Desmarest (1816 c :191) from Coast of Guinea , based on misidentifications of this species as Sylvicapra grimmia ( Linnaeus, 1758 ) .