Known from the upper and middle Akagera (Ref. 43912, 46152), including lakes Ihema, Kisanju, Mpanga, Hago and Rwanyakizinga (Ref. 43912). Also in lakes Rweru, Kilimbi, Gashanga, Sake and Mugusera and in the rivers Nyabarongo and Akanyaru (Ref. 43912). Naturally distributed in Middle Akagera; introduced in the upper Akagera system in 1962 from Jinja (Lake Victoria); also reported from Rwandese waters under the erroneous name Schilbe mystus which is in fact a Nilo-Sudanic species (Ref. 46152).