title: Intramolluscan development of Echinostoma liei (Trematoda:Echinostomatidae) in its snail host Biomphalaria alexandrina.
mesh_terms: D000818:Animals; D001700:Biomphalaria / Q000469:parasitology*; D004449:Echinostoma / Q000033:anatomy & histology / Q000254:growth & development*; D006790:Host-Parasite Interactions