title: Studies on a new species of the genus Echinochasmus Dietz, 1909 (Trematoda: Echinostomatidae).
mesh_terms: D000818:Animals; D001715:Bird Diseases; D001717:Birds; D004463:Ecology; D013045:Species Specificity; D014200:Trematoda / Q000033:anatomy & histology* / Q000145:classification