The Concolored Rice Rat is a medium-to-large rodent with short fur and a relatively long tail. It occurs in lowland rainforest in northwestern Brazil, eastern Colombia, and southern Venezuela, from sea level to 400 m.
It is medium to large, with a relatively long tail and very short fur. One female specimen from Venezuela measured 285 mm in total length, including a 158 mm tail.
It is associated with lowland rainforest and has been recorded from sea level to 400 m.
An extinction-risk assessment has not been added yet.