During the period from October to December 2001, Bucephalus polymorphus metacercariae were described in a new host, Knipowitshia caucasica from Lake Egirdir. A total of 614 fish were collected and the intensity of invasion varied from 10 to 120 parasites per fish. Prevalence of metacercariae of B.polymorphus was 100%, and encysted metacercariae of B.polymorhus were observed in the muscle of the...