Issue |
Parasite
Volume 11, Number 2, June 2004
|
|
---|---|---|
Page(s) | 131 - 140 | |
DOI | https://doi.org/10.1051/parasite/2004112131 | |
Published online | 22 August 2014 |
Mémoire
Affinities between Cutifilaria (Nematoda: Filarioidea), parasites of deer, and Mansonella as seen in a new onchocercid, M. (C.) perforata n. sp., from Japan
Affinité entre Cutifilaria (Nematoda : Filarioidea), parasite de cerfs, et Mansonella, révélée par une nouvelle filaire, M. (C.) perforata n. sp., au Japon
1
Department of Medical Zoology. Osaka City University Medical School. Osaka 545-8585, Japan.
2
Parasitologie comparée et Modèles expérimentaux, associée à l'INSERM (U567), Muséum National d'Histoire Naturelle et École Pratique des Hautes Études, 75231 Paris Cedex 05, France.
3
Department of Infectious Disease Control, Faculty of Medicine. Oita University, Oita 879-5593, Japan.
* Correspondence : S. Uni, Department of Medical Zoology. Osaka City University Medical School, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan. Tel. : +81-6-6645-3760 - Fax :+81-6-6645-3762 E-mail : uni@med.osaka-cu.ac.jp
Received:
29
August
2003
Accepted:
3
March
2004
A new dermal filarioid nematode, collected from Cervus nippon nippon (sika deer) on Kyushu Island, Japan, showed close affinities between the genera Cutifilaria and Mansonello (Onchocercidae : Onchocercinae) : no buccal capsule, esophagus reduced to a thin fibrous tube, and female tail with four lappets. We propose Cutifilaria as a subgenus of Mansonella. Cutifilaria was distinguished from the five other subgenera, Mansonella, Tetrapetalonema, Esslingeria, Sandnema, and Tupainema, in having an area rugosa composed of transverse bands with tiny points, 14-16 papillae around the cloacal aperture, two prominent rhomboidal subterminal papillae, and a thick right spicule with spoon-shaped distal extremity. The host range of Mansonella was extended to ungulates by the addition of Cutifilaria, which appears to be derived from Tupainema, parasitic in Tupaioidea (insectivores), because of the similarity in their right spicules ; Cutifilaria seems to have an Asiatic origin. M. (C.) perforata n. sp. was distinct from the sole other related species, M. (C.) wenki, a parasite of Cervus elaphus (red deer) in Europe, having a more complex right spicule with a sturdy terminal point and microfilariae with a bifid posterior end. In addition, almost all females had cuticular pores near the vulva, on the ventral line. The prevalence of microfilariae and adults of M. (C.) perforata in the skin of sika deer was 38 % and 21 %, respectively.
Résumé
Une nouvelle filaire dermique, récoltée chez Cervus nippon nippon au Japon, révèle les relations étroites entre Cutifilaria et Mansonella (Onchocercidae, Onchocercinae) : pas de capsule buccale, œsophage réduit à un mince tube fibreux, queue de la femelle à quatre languettes. Cutifilaria devient sous-genre de Mansonella ; il est distinct des cinq autres sous-genres, Mansonella, Tetrapetalonema, Esslingeria, Sandnema et Tupainema : area rugosa aux bandes transversales ponctuées, 14-16 papilles caudales groupées autour du cloaque, plus deux papilles subterminales ovales et volumineuses, spicule droit fort, à extrémité distale en cuiller. Cutifilaria, qui étend le spectre d'hôtes des Mansonella aux ongulés, semble dériver de Tupainema, parasite d'insectivores Tupaidés, et avoir une origine asiatique. M. (C.) perforata n. sp. est distinct de l'unique autre espèce, M. (C.) wenki, parasite de C. elaphus en Europe, par le spicule droit plus complexe muni d'une pointe terminale puissante, la queue de la microfilaire bifide. En outre presque toutes les femelles ont des pores cuticulaires dans la région vulvaire, sur la ligne ventrale. La prévalence de M. (C.) perforata est assez élevée : microfilaires dermiques et adultes détectées respectivement chez 38 % et 21 % des cerfs sika.
Key words: Cervus / cuticular pore / Cutifilaria / Filarioidea / Japan / Mansonella / microfilaria / Onchocercinae / sika deer / skin snip
Mots clés : Cervus / pore cuticulaire / Cutifilaria / Filarioidea / Japon / Mansonella / microfilaire / Onchocercinae / cerf sika / prélèvement cutané
© PRINCEPS Editions, Paris, 2004, transferred to Société Française de Parasitologie
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