The Southern African Mastomys is a rodent recorded in southern Africa. A South African study trapped it more often in natural and agricultural areas than in villages.
A Namibian species account describes yellowish-gray fur and a short tail with different colors on its upper and lower sides.
In a study in Mpumalanga, M. coucha was trapped more often in natural and agricultural habitats than in villages.
An extinction-risk assessment has not been added yet.