Cacajao calvus I. Geoffroy 1847
Cacajao calvus I. Geoffroy 1847, C. R. Acad. Sci. Paris, 24: 576.
Type Locality: Brazil, Amazonas, Fonte Boa.
Vernacular Names: Bald Uacari.
Subspecies::
Subspecies Cacajao calvus subsp. calvus I. Geoffroy 1847
Subspecies Cacajao calvus subsp. novaesi Hershkovitz 1987
Subspecies Cacajao calvus subsp. rubicundus I. Geoffroy St. Hilaire and Deville 1848
Subspecies Cacajao calvus subsp. ucayalii Thomas 1928
Distribution: NW Brazil, E Peru.
Conservation: CITES – Appendix I; U.S. ESA – Endangered; IUCN – Endangered as C. c. calvus, C. c. novaesi, and C. c. rubicundus, Vulnerable as C. c. ucayalii.
Discussion: Includes rubicundus; see Hershkovitz (1972 a), but also see Szalay and Delson (1979:290) who listed it as a distinct species.