In this study 133 Bithynia goryi snail were collected of which 54 from drain (Emry drain) and 79 from canal (Ezira canal) running through old planted lands from Beheira governorate, Egypt. The snails were examined for larval stages of trematodes. Three of the 54 examined snails from drains (5.55%) were found to be infected with monostome trioculate cercariae, whereas the 79 snails collected from canal were found to be free from any infection. The morphology of the redia and cercaria was fully described. The present study stands as the first record of monostome trioculate cercariae from Bithynia goryi in Egypt.
Key words: Bithynia goryi, monostome trioculate cercaria,
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