A total of 108 B. orientalis, Black sole fishwere obtained from Abadan ports, during February 2009 to January 2010. Both commercial and non commercial sized fish (18-40cm) were collected, these collected fish were kept on ice and brought to the laboratory of Aquatic Department, Faculty of Veterinary Science, Chamran University. An Iranian ichthyologist in accordance with Etemad and Mokhayer (1979) carried out identification of fish host. The methods and techniques used for collection, relaxation, fixation, staining and mounting of helminthes are basically those described by Hanek and Fernando (1972) and Roberts (2001).