Also known as Mantle Howler monkey, the leave in troops of 10 to 18 individuals, the are mostly they are folivorous but also eat fruits. the length of head and body is 380-580mm, tail length 520-670, weight 3.6-7.6kg .. It is big and chubby. It is mainly black with a long and yellowish coat on the sides of the body. The head is large. The face is bare and black with a beard. The tail is long and prehensile with a bare pad at the bottom, near the tip. Adult males are larger than females, with a longer, prominent beard. The scrotum is white. Females have their first offspring between 40-46 months of age. The gestation period lasts 6 months and births can be dispersed in some years and grouped in others.
Picture taken in the canopy.