Biomphalaria alexandrinaBiomphalaria alexandrina is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails and their allies.DistributionThis species occur in EgyptHabitatBiomphalaria alexandrina lives in freshwater, for example in irrigation canals.Feeding habitsIn captivity, Biomphalaria alexandrina can be fed on boiled leaves of lettuce.ParasitesBiomphalaria alexandrina serves as an intermediate host for ''Schistosoma mansoni''HybridThere is a known hybrid Biomphalaria glabrata × Biomphalaria alexandrina, from Egypt.PhylogenyA cladogram showing phylogenic relations of species in the genus Biomphalaria: