The short-tailed spiny-rat occurs in the western Amazon. At a study site in Peru, it had reddish-brown fur streaked with black and was caught more often in disturbed areas such as young secondary growth than in forest.
Its back is reddish-brown with black streaks, and its throat and flanks have a rufous wash. Its tail was only slightly shorter than those of other local species, despite its name.
At the Loreto study site, it was caught more often in disturbed areas and young secondary growth than in forest.
An extinction-risk assessment has not been added yet.