Monogènes parasites de Clariidae (Teleostei, Siluriformes) au Cameroun : I. Description de deux nouvelles espèces du genre Gyrodactylus dans le bassin du Nyong

Parasite

et L. Euzet¹  C. Bilong Bilong²  J. Nack² 

[1] Station méditerranéenne de l’environnement littoral. Université Montpellier II, 1, quai de la Daurade,F-34200 Sète,France;Laboratoire de biologie générale. Département de biologie et physiologie animales. Faculté des sciences, Université de Yaoundé I,BP 812,Yaoundé,Cameroun. E-mail : [e-mail]

关键词: Cameroon;    Nyong;    Siluriformes;    Clarias;    G. nyongensis n. sp.;    G. camerunensis n. sp.;    Gyrodactylidae;    Monogenea;   

Others  :  808764
DOI  :  doi:10.1051/parasite/2005123213

【 摘 要 】

The study of gill and skin parasites of three fishes species belonging to the genus Clarias: C. camerunensis, C. jaensis and C. pachynema, from the Nyong basin (Cameroon), revealed the presence of two new Monogenean species of the genus Gyrodactylus Nordmann: G. camerunensis n. sp. and G. nyongensis n. sp. parasite of Clarias camerunensis, C. jaensis and C. pachynema. Gyrodactylus camerunensis n. sp. is clearly distinguished from G. nyongensis n. sp. by the smaller size of the haptor sclerites. These two new species differ also from their closest african relatives of the genus Gyrodactylus, G. rysavyi, G. clarii and G. alberti, by the morpholohy and size of the haptorail sclerites. Their host specificity was discussed and appeared stenoxenous (mesostenoxenous).

【 授权许可】

   
© PRINCEPS Editions, Paris, 2005