This semi-aquatic rodent is endemic to Peru. A 2017 range record reported one female caught in a bamboo patch within secondary forest near a river.
The ears are short, the hind feet are long and narrow with a weak fringe of stiff hairs, and the forefeet have five pads.
One female was captured in a small bamboo patch in secondary forest near the Pilcopata River, at Villa Carmen Biological Station. This is a local capture record.
An extinction-risk assessment has not been added yet.