Oreonax flavicauda (Humboldt 1812)
[Simia] flavicauda Humboldt 1812, Rec. Observ. Zool., 1: 363.
Type Locality: Peru, San Martin, Puca Tambo, 5100 ft. (1555 m).
Vernacular Names: Yellow-tailed Woolly Monkey.
Synonyms: Oreonax hendeei (Thomas 1927) .
Distribution: E Andes in San Martin (Peru) and Amazonas (Brazil).
Conservation: CITES – Appendix I as Lagothrix flavicauda; U.S. ESA – Endangered as L. flavicauda; IUCN – Critically Endangered.