Larval trematode stages in Bulinus truncatus and Biomphalaria alexandrina snails.
D000818:Animals; D001700:Biomphalaria / Q000469:parasitology*; D002033:Bulinus / Q000469:parasitology*; D004534:Egypt; D007814:Larva / Q000302:isolation & purification; D014200:Trematoda / Q000302:isolation & purification*