This mouse is recorded in humid marshes, grassland, and agricultural fields in West Africa. The 2017 account describes dark-gray fur in young animals and rusty-brown fur in old animals, with blackish fur also reported in Senegal.
The 2017 species account describes dark-gray upperparts in young animals and rusty-brown upperparts in old animals, with blackish fur also reported in Senegal. The underside is dark.
The 2017 account lists humid areas in marshes, grassland, and agricultural fields as its habitat. It is nocturnal and terrestrial; stomach contents included insects, grain, leaves, stems, roots, and fruit pulp.
An extinction-risk assessment has not been added yet.