This titi monkey is endemic to the San Martín region of Peru. Pale fur around the face is a characteristic feature, though it is faint in some individuals.
A ring of pale hair around the face is characteristic, but it may be faint in some individuals.
It lives in groups centered on a pair and their young. Fruit is its main food, with leaves, flowers, and insects also eaten.
An extinction-risk assessment has not been added yet.