The Ruwenzori Dasymys is a dark-furred water rat known from high elevations in Uganda’s Ruwenzori Mountains. Another Dasymys species occurs in the surrounding lowlands.
The review identifies dark pelage as a feature of this montane form.
The review describes it as a relict montane form, with D. medius occupying the surrounding lowlands.
An extinction-risk assessment has not been added yet.