Alfred L. Gardner. Curator of North American mammals and Chief of Mammal Section, National Biological Service, Smithsonian Institution, National Museum of Natural History, Washington, DC, USA
Peter Grubb. 35 Downhills Park Road, London N17 6PE, England
Wilson, Don E., and DeeAnn M. Reeder, eds. 2005-10-01. Mammal Species of the World: A Taxonomic and Geographic Reference, 3rd ed., vols. 1 & 2. Johns Hopkins University Press. Baltimore, Maryland, USA. 2142. 0-8018-8221-4. .
Wilson, Don E., and DeeAnn M. Reeder, eds. 1992-01-01. Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printing. Smithsonian Institution Press. Washington, DC, USA. xviii + 1207. 1-56098-217-9. Corrections were made to text at 3rd printing.
Wilson, Don E., and F. Russell Cole 2000-01-01. Common Names of Mammals of the World. Smithsonian Institution Press. Washington, DC, USA. xiv + 204. 1-56098-383-3. With contributions by Bernadette N. Graham, Adam P. Potter, and Mariana M. Upmeyer.
Wilson & Reeder, eds. (2005): Status: IUCN - Lower Risk (cd)
Wilson & Reeder, eds. (2005): Comments: Ansell (1972:19) compared subspecific systematics of different authors, here modified from Schouteden (1945). The species can be partitioned into the nominate caffer division (including also aequinoctialis) and the nanus division (including also brachyceros); phylogeography indicates similar haplotypes for nanus and cf. brachyceros, which differ from those of nominate caffer (Van Hooft et al., 2002); matthewsi is probably of polyphyletic origin; cottoni is based on a specimen of nominate ca...