Adult length: 12.5 in.; tail length: approximately 16 in.; appearance and color: slender, lithe build, with a short grayish coat, bright yellow legs and white masks of fur around their eyes and dark brown or black coloration around the mouth and chin; non-prehensile tail often curls over one shoulder when resting; dentition: 36 teeth, and their teeth are sexually dimorphic - males have large upper canines.