The red uakari has no or little hair on the face and the forehead. There is sexual dimorphism of size in this species. This species has a dental formula of 2:1:3:3 on the upper and lower jaw (Hershkovitz, 1987). The incisors of this species are narrow and elongated (Hershkovitz, 1987). This species has relatively robust and divergent canines as compared to other primates (Barnett and Brandon-Jones, 1997). The molars of the red uakari are simple and low-crowned (Kinzey, 1992; cited in Norconk et al., 1998). Males have larger canines and lower first premolars (Hershkovitz, 1987). The tail of this species is one-third the length of the head and body which is unique amongst New World primates (Barnett and Brandon-Jones, 1997).

This species has four subspecies and each one distinguished by a different pelage coloration:

Last Updated: May 8, 2007.
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