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Description et cycle de Echinoparyphium combesi sp. n. chez Bulinus truncatus vecteur de Schistosoma haematobium en Algerie


, : Description et cycle de Echinoparyphium combesi sp. n. chez Bulinus truncatus vecteur de Schistosoma haematobium en Algerie. Annales de Parasitologie Humaine et Comparee, 551: 57-68

The adult worm, developmental stages and life cycle of E. combesi, found in Algeria are described. Sporocysts and rediae develop in B. truncatus. In natural conditions cercariae released by Bulinus encyst in the pericardial cativy of Physa actua and B. truncatus itself. Experimentally they may encyst in Planorbarius meditiensis and in the kidneys of Rana ridibunda perezi tadpoles. They can also encyst in situ in the 1st intermediate host. Experimentally, metacercariae mature in the small intestine of chicks and mice. The parasite provokes castration in the genital gland of the snail. It could be used in biological control of Bulinus, the vector of Schistosoma haematobium human parasite .

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