title: Description of Gymnophallus somateriae (Levinsen, 1881) from Macoma inconspicua and diving ducks from Vancouver, Canada.
mesh_terms: D000818:Animals; D001715:Bird Diseases; D049872:Bivalvia; D002170:Canada; D004372:Ducks; D014200:Trematoda / Q000033:anatomy & histology / Q000145:classification*; D014201:Trematode Infections / Q000662:veterinary