The crab-eating rat is a medium-sized rodent adapted to life in water. A 2018 paper added localities in Colombia’s Central Andes and described streams, nocturnal activity and carnivory.
It is medium-sized, with a slender muzzle and a tail that is dark along its entire length. The paper cites earlier species accounts for these identifying traits.
It is nocturnal, carnivorous and adapted to aquatic life. Previous reports include small streams in cloud forest as well as waterways and irrigation channels in agricultural landscapes.
IUCN Red List · Least Concern (LC) · Global