title: [Argyrophilic integumentary structures of the miracidium, redia and cercaria of Paramphistmun daubneyi Dinnik, 1962 (Trematoda, Paramphistomidae)].
abstract: Paramphistomum microbothrium and P daubneyi are two sibling-species. The value of morphological criteria which have been used to distinguish the adults is not accepted by all authors. On the contrary, criteria based upon larval stages, except miracidia, permit an easy diagnosis. P. microbothrium parasitizes Bulinids, the rediae have a long intestine, germ-balls are inequal in size, cercariae are long-tailed and possess numerous lateral somatic bristles: about 9 by a half-body and numerous caudal bristles: about 17 pairs. P. daubneyi parasitizes Lymneids, the rediae have a short intestine, germ-balls are of equal size, cercariae are short-tailed and posses few lateral somatic bristles (about 4 by a half-body) and relatively few caudal bristles:  about 6 pairs. In addition to the cercaviae, argentophilic structures of miracidia and rediae of P. daubneyi are described.
mesh_terms: D000818:Animals; D002033:Bulinus / Q000469:parasitology; D002417:Cattle; D007814:Larva / Q000033:anatomy & histology; D008195:Lymnaea / Q000469:parasitology; D012834:Silver; D013194:Staining and Labeling; D014200:Trematoda / Q000033:anatomy & histology* / Q000145:classification
chemical_list: D012834:Silver
vernacular_title: Structures argyvophiles tégumentaires du miracidium, de la rédie et la cercaire de Paramphistomum daubneyi Dinnik, 1962 (Trematoda, Paramphistomidae).