The G, Q, and C bands and the location of the nucleolar organizing regions (NORs) of the chromosomes of two male Cercopithecus neglectus
are described. The diploid number of the species is 2n =
62. Comparison with the karyotypes of Miopithecus talapoin (2n =
54), and Erythrocebus patas (
2n =
54)
showed the presence of total banding homeology for only 10 chromosome pairs.
KEY WORDS Cercopithecinae - cytotaxonomy - banding patterns - nucleolar organizing regions