Africa: typical Sudanian distribution; occurs in much of the Nile system (exclusive of Lake Victoria), Lake Turkana (Ref. 44050), Lake Chad and Senegal basins, Konkouré, throughout the Niger system, and in smaller southward flowing basins in west Africa (rivers Sassandra and Bandama through Volta) (Ref. 44050, 57130). Absent from the Congo basin; reports from the Congo basin refer to any of the other species in this system (see Ref. 44050 for details).