The Black-pencilled Marmoset, also known as the Black-tufted Marmoset and Mico-estrela in Portuguese, is a species of New World monkey that lives primarily in the Neo-tropical gallery forests of the Brazilian Central Plateau. It ranges from Bahia to Paraná, and as far inland as Goiás, between 14 and 25 degrees south of the equator. This marmoset typically resides in rainforests, living an arboreal life high in the trees, but below the canopy. They are only rarely spotted near the ground. The Black-pencilled Marmoset is characterized by black tufts of hair around their ears. It typically has some sparse white hairs on its face.