A small monkey of coastal forests in Brazil that feeds on tree sap, fruit, and insects.
Its body is black and its head gray. It has white fur on the forehead and cheeks, black ear tufts, and a ringed tail.
By day it moves quadrupedally and leaps through the lower parts of trees. Sap is a main food, along with fruit, flowers, nectar, seeds, and insects.
An extinction-risk assessment has not been added yet.