This spiny rat is found around the Orinoco region of Venezuela. Its back is pale grey with white speckles, and the spines toward the rump have white tips.
The back is pale grey with white speckles and a reddish tint. Spines toward the rump have white tips; the white underside is sharply separated from the flanks.
Detailed life-history information is not available. The account identifies tropical dry forest as the habitat at Hato La Florida on the southern Llanos margin.
An extinction-risk assessment has not been added yet.