“…Moreover, S. mansoni strains can be identified by the chetotaxic study of the sensorial argentophilic papillae of cercariae (Bayssade-Dufour 1977, 1979, Cassone et al 1979, Pino et al 1988, 1997. Nevertheless, there are few reports on the morphometric analysis of non-sensorial structures in the cercariae aiming at taxonomic approaches (Zanotti-Magalhães et al 1993).…”