Least Pelomys was recorded in a survey of the Misotshi-Kabogo highlands in eastern Democratic Republic of the Congo. The survey animal's tail was nearly as long as its head and body.
In the one adult male measured in the Misotshi-Kabogo survey, the tail was nearly as long as the head and body.
The survey captured one adult male at a forest edge on a ridge slope.
An extinction-risk assessment has not been added yet.