Hylaeamys perenensis

Hylaeamys perenensis, formerly Oryzomys perenensis, also known as the western Amazonian oryzomys, is an oryzomyine rodent of the family Cricetidae.

It is found in western Amazonia (southeastern Colombia, eastern Ecuador, eastern Peru, northern Bolivia, and western Brazil).

It has an omnivorous diet and is nocturnal, terrestrial, and nonsocial. It is commonly found along rivers.