Development of the head collar and collar spines during the larval stages of Isthmiophora hortensis (Digenea: Echinostomatidae)
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It is uncertain when the head collar and collar spines of Isthmiophora hortensis (Digenea: Echinostomatidae), a zoonotic echinostome species in Far Eastern Asia, develop during its larval stages. In this study, the appearance of the head collar and collar spin... ...
