Also called the golden-backed black uakari, golden-backed uakari, and Homboldt’s black-headed uakari, the black uakari[1], is a species native to southwestern Venezuela, southeastern Colombia, and northwestern Brazil.
- The black uakari has a short tail relative to its body size, with a tail length of less than 50 percent of the combined body and head length. In addition, its tail is not prehensile.
- The species is further divided into 2 subspecies: C. m. ouakary is distinguished by a yellowish or golden nape and mid-dorsum from C. m. melanocephalus, in which these body regions are black to reddish-brown.
- The rest of the body is dark brown, except for the abovementioned areas that distinguish the subspecies.
- The lower jaw is deep in the region of the symphysis and exceptionally robust.