A small monkey recorded in Rondônia, Brazil. The official species account describes the nominate subspecies east of the Madeira River.
The nominate subspecies has a black head, forearms, chest, and nape; orange hind limbs; and a back mottled with black and light brown.
The official account reports groups of two to nine. They eat fruit, invertebrates, small vertebrates, nectar, and plant exudates, and search crevices in tree bark.
An extinction-risk assessment has not been added yet.