About Cebus yuracus Hershkovitz, 1949
The Marañón white-fronted capuchin, scientifically named Cebus yuracus, is also known as the Peruvian white-fronted capuchin or Andean white-fronted capuchin. It is a species of gracile capuchin monkey native to the upper Amazon Basin. This species was originally considered synonymous with the shock-headed capuchin, C. cuscinus, which itself was previously classified as a subspecies of Humboldt's white-fronted capuchin. Mittermeier and Rylands reclassified Cebus yuracus as a separate species, based on genetic studies conducted by Boubli. Marañón white-fronted capuchins inhabit wet forests of the upper Amazon basin, found in southern Colombia, eastern Ecuador, and northeastern Peru; their range is also believed to extend into eastern Brazil. Males of this species have an average head and body length of approximately 43 cm (17 in), with an average tail length of around 47 cm (19 in). Females have an average head and body length of about 37 cm (15 in), with an average tail length of roughly 45 cm (18 in). Marañón white-fronted capuchins sometimes form mixed-species foraging groups with the Ecuadorian squirrel monkey.
