Saimiri sciureus (Linnaeus, 1758)

Sexual Size Dimorphism

The Guianan squirrel monkey (Saimiri sciureus) shows size differences between males and females.

Male Body and Tail Length

Males have a body length between 25 and 37 centimeters (9.8 to 14.6 inches), and a tail length between 36 and 40 centimeters (14 to 16 inches).

Female Body and Tail Length

Females have a body length between 25 and 34 centimeters (9.8 to 13.4 inches), and a tail length between 36 and 47 centimeters (14 to 19 inches).

Weight

Males weigh between 550 and 1,400 grams (19 to 49 ounces), while females weigh between 550 and 1,200 grams (19 to 42 ounces).

Facial Markings

In terms of appearance, this species has a pink face, a black muzzle, and white arches above the eyes.

Head Coloration

The crown of the head is olive or olive gray.

Body and Limb Coloration

The back fur can be gray, olive, or orange, while the belly is white and the arms are yellow-orange.