This mouse is recorded from mountain forests in northern New Guinea. Its tail is longer than its head and body, its sides are buff-brown, and its throat is white.
Its tail is longer than its head and body together. The sides are buff-brown and the throat is white; it is larger than the related P. wilhelmina.
The reviewed Paraleptomys specimens came from high mountain forests. The paper gives no further field observations of this species’ behavior.
An extinction-risk assessment has not been added yet.