Cerradomys langguthi is a small rodent of northeastern Brazil. Its back is orange-brown and grizzled, its head grey, and its belly grey to slightly yellowish. Records span coastal forest, dry woodland and scrub, moist mountain-slope forest, and cultivated fields.
Its short, dense back fur is orange grizzled with brown; the head is contrastingly grey, and the belly ranges from grey to slightly yellowish.
The account records it in humid coastal Atlantic Forest, drier inland woodland and scrub, and moist forests on mountain slopes. It is also associated with natural and cultivated fields; cited observations report nests in wetter grass patches.
An extinction-risk assessment has not been added yet.