title: [Problem of species in the genus Azygia of Trematodes from European pikes].
mesh_terms: D000818:Animals; D005393:Fish Diseases / Q000175:diagnosis*; D008675:Metamorphosis, Biological; D014200:Trematoda / Q000033:anatomy & histology / Q000145:classification* / Q000502:physiology; D014201:Trematode Infections / Q000662:veterinary*
vernacular_title: Zur Artfrage bei der Trematodengattung Azygia aus europäischen Hechten.