The Brazilian Atlantic Tree-rat is a spiny rodent known from a limited area of Minas Gerais. Its back is orange-brown with black flecks, and its underside is cream-colored.
Its back is orange-brown with black flecks and long, spiny hairs. The underside is creamy yellow, and the tail is about as long as the body.
Records come from the transition between semideciduous forest and Cerrado at 500–800 m.
An extinction-risk assessment has not been added yet.