Spix's white-fronted capuchin

Spix's white-fronted capuchin (Cebus unicolor) is a gracile capuchin monkey of the family Cebidae. It had previously been classified as a subspecies of Humboldt's white-fronted capuchin, but following genetic studies by Boubli and colleagues, Mittermeier and Rylands elevated it to a full species. It has a wide range within the upper Amazon Basin in Brazil and Peru and also occurs in northern Bolivia. It measures between 36.5 and 37.5 cm in head and body length, with a tail between 42 and 46 cm long. Like the other white-fronted capuchins it belongs to the genus Cebus, the gracile capuchins, which are set apart from the robust capuchins of the genus Sapajus.