Helminth parasite larvae collected from Arabian Gulf fish II. first record of some trybanorhynch cestode from economically important fish

Metacestodes of 14 different trypanorhynch larvae were found infesting Arabian Gulf economically important fish along the coasts of the United Arab Emirates. Except for Grillotia and Pterobothrium, all other larvae were recorded and described for the first time. The metacestodes were identified as: Callitetrarhynchus gracilis, C. speciosus, Grillotia sp., Nybelini'a bisulcata, N. indica, N. lingualis, N. sp., Otobothrium dipsacum, O. sp., Progrillotia sp., Pseudogrillotia spratti, Pterobothrium heteracanthum, Pterobothrioides sp. and Tentacularia coryphaenae. Two of them, Callitetrarhynchus gracillis and Pterobothriuni heteracanthum were very common and have a conspicuously high prevalence rate. The potentiality to invade flesh of fishes was only recorded in two larvae, Pseudogrillotia spratti and Pterobothrium heteracanthum. All fish hosts are new records