Six new species of Cichlidogyrus Paperna, 1960 (Platyhelminthes: Monogenea) from the gills of cichlids (Teleostei: Cichliformes) from the Lomami River Basin (DRC: Middle Congo). Parasites & Vectors, 13(1), Apr 9 2020: 187. 5 [Zoological Record Volume 156]