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Memórias do Instituto Oswaldo Cruz

Print version ISSN 0074-0276On-line version ISSN 1678-8060


SANTOS, Cláudia Portes; MORAVEC, František  and  VENTURIERI, Rossana. Capillostrongyloides arapaimae sp. n. (Nematoda: Capillariidae), a new intestinal parasite of the arapaima Arapaima gigas from the Brazilian Amazon. Mem. Inst. Oswaldo Cruz [online]. 2008, vol.103, n.4, pp.392-395. ISSN 0074-0276.

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 µm), 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.

Keywords : Capillostrongyloides arapaimae n. sp.; Nematoda; Arapaima gigas; fish; Brazil.

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