It is found in western Amazonia, west of the Rios Negro and Madeira, in northwestern Brazil, northeastern Peru, eastern Ecuador, southeastern Colombia, and southern Venezuela.

There is substantial variation within this range, and the Green Acouchi, as currently recognized, may contain more than one species.

[4] An adult green acouchi weighs around 1 kilogram (2.2 lb),[5] and has a short tail.

[6] Green acouchis are diurnal, surface dwelling rodents and have a complex array of behavior patterns relating to social interaction.

[7] Female acouchis have an average oestrus cycle length of around 43 days[8] and have a set breeding season between autumn-spring with a 99-day gestation.