Emilia's Marmoset is a small monkey marked by a blackish crown, white brow, grayish-brown back, and black tail. A survey in the southern Brazilian Amazon recorded it in regenerating areas with many lianas.
The authors identified the species using a blackish crown, white brow, unpigmented face, pigmented bare ears, grayish-brown back, and black tail.
At Serra do Pardo National Park, researchers recorded two sightings of single animals and nine sightings of groups of two to three. Animals appeared restless and alert and gave alarm calls when researchers were nearby.
An extinction-risk assessment has not been added yet.