Guianan squirrel monkey

The Guianan squirrel monkey (Saimiri sciureus) is a species of squirrel monkey from Guiana, Venezuela and Brazil. The name sciureus once applied to the common squirrel monkey, which included Humboldt's squirrel monkey and Collins' squirrel monkey, until genetic research in 2009 and 2015 showed these to be distinct species; the name now applies to the squirrel monkeys of northern Brazil and the Guianas. Males have a body 25 to 37 cm long with a tail of 36 to 40 cm and weigh 550 to 1,400 g. It has a pink face, black muzzle and white arches over the eyes, an olive or olive-gray crown, a white belly and yellow-orange arms. It often feeds and moves in mixed species groups with capuchin monkeys. Its closest relative is the Central American squirrel monkey, despite the gap in their ranges.