title: Discovery of Maritrema obstipum (Digenea: Microphallidae) from migratory birds in Korea.
abstract: Adults of Maritrema obstipum (Digenea: Microphallidae) were found in the intestines of 4 species of migratory birds, including the sanderling (Crocethia alba), Kentish plover (Charadrius alexandrines), Mongolian plover (Charadrius mongolus), and red-necked stint (Calidris ruficollis), collected from Yubu Island, Chungcheongnam-do, Korea. The worms of were 451 × 265 µm in size, and were easily identifiable as Maritrema species by the presence of the cirrus sac, and the ring-like distribution of the vitellaria. More specifically, the ejaculatory duct curved posteromedially, and the 2 parts of vitelline follicles were found to be distinct at the posterior end. The eggs were brown-colored, and 19.8 × 12.3 µm in size. All these findings implicated M. obstipum as the pertinent species of the worms. Beside these, adult worms of Gynaecotyla squatarolae, Parvatrema duboisi, and Acanthoparyphium sp. were also discovered. This is the first report establishing migratory birds as the natural definitive hosts for M. obstipum.
authors.affiliation: Division of Ecology and Environment, Chungnam Development Institute, Gongju 314-140, Korea.
authors.forename: Ok-Sik
authors.initials: OS
authors.lastname: Chung
authors.forename: Woon-Mok
authors.initials: WM
authors.lastname: Sohn
authors.forename: Jong-Yil
authors.initials: JY
authors.lastname: Chai
authors.forename: Min
authors.initials: M
authors.lastname: Seo
authors.forename: Hye-Jung
authors.initials: HJ
authors.lastname: Lee
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000469:parasitology*; D046091:Charadriiformes / Q000469:parasitology*; D058507:Host Specificity; D007422:Intestines / Q000469:parasitology; D062312:Islands; D056910:Republic of Korea; D014200:Trematoda / Q000033:anatomy & histology / Q000145:classification / Q000302:isolation & purification*; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary*