 African brown knifefish

The African brown knifefish or African knifefish, "Xenomystus nigri", is the only species in the genus "Xenomystus" of the family Notopteridae.This fish is found in the Chad, Nile, Congo, Ogowe and Niger basins, as well as coastal river basins in Sierra Leone, Liberia, Togo, Benin and Cameroon.