Squirrel monkey | 台北市立動物園資訊網

Squirrelmonkey,(genusSaimiri),mostabundantprimateofriversideforestsintheGuianasandtheAmazonRiverbasin,distinguishedbyacircleofblack ...

squirrel monkey, (genus Saimiri), most abundant[1] primate[2] of riverside forests in the Guianas and the Amazon River[3] basin, distinguished by a circle of black hairless skin around the nose and mouth set against an expressive white face. Their short, soft fur is gray to olive green, with whitish underparts. Squirrel monkeys[4] are 25–40 cm (10–16 inches) long, not including the heavy nonprehensile tail, which is at least as long as the body. Hands, arms, and feet are yellow to orange. Common squirrel monkeys[5] (Saimiri sciureus) have olive or grayish crowns and are found only in South America[6], whereas the endangered Central American squirrel monkeys (S. oerstedii) have black crowns and reddish backs. The common and Central American species[7] both have hair on the ears, unlike the bare-eared squirrel monkey (S. ustus) of central Brazil.