title: A revision of Helicometra Odhner, 1902 and related genera (Trematoda: Opecoelidae), including a description of Neohelicometra sebastis n. sp.
mesh_terms: D000818:Animals; D005260:Female; D005393:Fish Diseases; D005399:Fishes; D008297:Male; D014200:Trematoda / Q000033:anatomy & histology / Q000145:classification*; D014201:Trematode Infections / Q000662:veterinary*