Isolatd viable metacercariae were collected from a heavy and modera te infected Schilbe mystis at Sohag Province. These metacercarial cysts were submitted to prove the viability and the infectivity power. Constant number of viable metacercariae were fed to one day old chicks. The recovery rate was 4.22%. Two types of digenetic tremato des were recovered that only isolated from the intestinal mucosa two weeks post infection. The first type is Stictodora tridactyla MARTIN & KUNTZ, 1955 and the second type is Prohemistomum vivax SONSINO, 1892.