This rodent lives in seasonally flooded forests of the western Amazon. Flexible spines are mixed into the fur on its back, and its muzzle is reddish.
Coarse bristles and fine hairs mix with flexible spines on the back; the muzzle is reddish, and the underside is a duller gray.
It is nocturnal and lives in seasonally flooded lowland evergreen forest. Captures in the Juruá River area were mainly in the canopy.
At Peru’s Allpahuayo-Mishana National Reserve, it has been captured in traps placed on vines in flooded forest.
At Allpahuayo-Mishana National Reserve, a female captured in June gave birth in a trap to two male young.
The base of the tail is densely furred, and the tip lacks a tuft of hair.
An extinction-risk assessment has not been added yet.