title: First description of the male and redescription of the female of Philometra clavaeceps Dogiel and Akhmerov, 1959 (Nematoda: Philometridae), a parasite of East Asian cyprinid fish.
abstract: The first description of the male and a redescription of the female of the nematode Philometra clavaeceps Dogiel and Akhmerov, 1959, a parasite of east Asian cyprinids, are presented on the basis of specimens collected from Culter erythropterus Basilewsky and Culter dabryi Bleeker from Liangzi Lake (the Yangtze River basin), Hubei Province, central China. Gravid females from the fish abdominal cavity, penetrating often into ovaries, occurred in May-June, whereas conspecific males and young mature females on the swimbladder were recorded in January. Philometra clavaeceps seems to have a pronounced annual maturation cycle in the locality. The finding of P. clavaeceps in C. dabryi represents a new host record.
authors.affiliation: State Key Laboratory of Freshwater Ecology and Biotechnology, Chinese Academy of Sciences, Wuhan 430072, Hubei Province, People's Republic of China.
authors.forename: Shangong
authors.initials: S
authors.lastname: Wu
authors.forename: Frantisek
authors.initials: F
authors.lastname: Moravec
authors.forename: Guitang
authors.initials: G
authors.lastname: Wang
authors.forename: Pin
authors.initials: P
authors.lastname: Nie
mesh_terms: D000818:Animals; D002681:China / Q000453:epidemiology; D003530:Cyprinidae / Q000469:parasitology*; D017176:Dracunculoidea / Q000033:anatomy & histology / Q000145:classification* / Q000648:ultrastructure; D005260:Female; D005393:Fish Diseases / Q000453:epidemiology / Q000469:parasitology*; D005618:Fresh Water; D008297:Male; D008855:Microscopy, Electron, Scanning / Q000662:veterinary; D015995:Prevalence; D017205:Spirurida Infections / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*