1. Akhmerov A.K. (1959) [A new trematode genus from fish.] Trudy Gel'mintologicheskoi Laboratorii, 9, 45?48 [in Russian].
2. Angel L.M. (1966) Bancroftrema neoceratodi gen. et sp.nov., a paramphistomatid trematode from the Australian lungfish. Journal of Parasitology, 52, 1058?1061.
3. Fischthal J.H. & Kuntz R.E. (1959) Trematode parasites of fishes from Egypt. Part I. Basidiodiscus ectorchis n.gen., n.sp. and Sandonia sudanensis McClelland 1957 (Paramphistomidae). Proceedings of the Helminthological Society of Washington, 26, 247?2576.
4. Manter, H.W. & Pritchard, M.H. (1964) Vermes-Trematoda. Annales du Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Sér. 8, Sciences Zoologiques, No. 132, 75?101.
5. McClelland W.F.J. (1957) Two new genera of amphistomes from Sudanese freshwater fishes. Journal of Helminthology, 31, 247?256.