This climbing mouse occurs in the eastern Brazilian Amazon. A few records from Serra do Roncador include gallery forest, a dry-forest edge, and a house.
Dorsal fur ranges from dull gray-brown to bright orange-brown, while the underside is cream to white. The tail is long with a terminal pencil, and the large ears are bare.
At Serra do Roncador, four specimen records include one from a house, two from gallery forest, and one from a cerrado–dry-forest edge.
An extinction-risk assessment has not been added yet.