title: Capillostrongyloides arapaimae sp. n. (Nematoda: Capillariidae), a new intestinal parasite of the arapaima Arapaima gigas from the Brazilian Amazon.
abstract: A new nematode species, Capillostrongyloides arapaimae sp. n., is described from the intestine and pyloric caeca of the arapaima, Arapaima gigas (Schinz), from the Mexiana Island, Amazon river delta, Brazil. It is characterized mainly by the length of the spicule (779-1,800 microm), the large size of the body (males and gravid females 9.39-21.25 and 13.54-27.70 mm long, respectively) and by the markedly broad caudal lateral lobes in the male. It is the third species of genus Capillostrongyloides reported to parasitize Neotropical freshwater fishes.
authors.affiliation: Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, Brasil. cpsantos@ioc.fiocruz.br
authors.forename: Cláudia Portes
authors.initials: CP
authors.lastname: Santos
authors.forename: Franti Ek
authors.initials: FE
authors.lastname: Moravec
authors.forename: Rossana
authors.initials: R
authors.lastname: Venturieri
mesh_terms: D000818:Animals; D001938:Brazil; D005260:Female; D005399:Fishes / Q000145:classification / Q000469:parasitology*; D008297:Male; D009348:Nematoda / Q000033:anatomy & histology / Q000145:classification* / Q000302:isolation & purification; D045483:Rivers