抄録
A new gymnocephalous cercaria of echinostomous type was found from Parafossarulus manchouricus in Miyaki Prefecture, Japan. Its detailed morphology including the excretory system is described. This cercaria is closely related to Cercaria nuda Komiya, 1952 but differs from it in that it has sensory hairs on the upper edge of the oral sucker and the lateral side of the tail as well as in some other points. A new name Cercaria miyagiensis is proposed for it.
