This strong swimmer lives in wetlands in Uruguay and southern Brazil. Its partly webbed hind feet help it move around water.
Its dense, soft fur ranges from grey to ochre-brown, with an ivory-coloured underside. Its strong hind feet are partly webbed.
It is semi-aquatic, uses marshy water edges, and swims well. It is nocturnal and feeds on insects and earthworms.
An extinction-risk assessment has not been added yet.