Four new species of Cichlidogyrus (Monogenea: Ancyrocephalidae), gill parasites of Tilapia cabrae (Teleostei: Cichlidae), with discussion on relative length of haptoral sclerites. Folia Parasitologica (Ceske Budejovice), 50(3), September 2003: 195-201. 196 [Zoological Record Volume 140]