Nirupama Agrawal
From the introduction: The developmental stages in the life cycle of digeneans include a number of larvae viz., miracidium sporocyst redia cercaria and metacercaria. The cercaria develops inside sporocyst or redia. To become infective cercariae undergo a further developmental phase and are known as metacercariae. Family schistosomatidae and Azygiidae are exceptions wherein the cercariae penetrate the skin of the definitive host or ingested directly by definitive ...