The Magdalena rat lives in dry forests on Mexico's Pacific coast. It is arboreal and nocturnal, usually solitary, and feeds on leaves, buds, and fruit.
The back ranges from cinnamon to light yellowish brown, with a pale head and brighter hips. White spots occur above the eyes and behind and at the base of the ears; the underside is creamy white.
It is arboreal, solitary, and nocturnal, and feeds mainly on leaves, buds, and fruit. A 2019 UNAM article lists three reported areas: Chamela in Jalisco and Armería and Pueblo Juárez in Colima.
An extinction-risk assessment has not been added yet.