Issue |
Parasite
Volume 13, Number 4, December 2006
|
|
---|---|---|
Page(s) | 275 - 281 | |
DOI | https://doi.org/10.1051/parasite/2006134275 | |
Published online | 15 December 2006 |
Mémoire
Two new species of Pseudochristianella Campbell & Beveridge, 1990 (Cestoda: Trypanorhyncha) from elasmobranch fishes from the Gulf of California, Mexico
Deux nouvelles espèces de Pseudochristianella Campbell & Beveridge, 1990 (Cestoda : Trypanorhyncha), parasites d’élasmobranches dans le Golfe de Californie, Mexique
1
Department of Biology, University of Massachusetts Dartmouth, North Dartmouth, Massachusetts, USA
2
current address: 415 Highfield Road, Salem Virginia 24153, USA
3
Department of Veterinary Science, University of Melbourne, Veterinary Clinical Centre, Werribee, Victoria 3030, Australia
* Correspondence: Ian Beveridge. Tel.: 61 3 97312285 – Fax 61 3 97312263. E-mail: ibeve@unimelb.edu.au
Received:
22
June
2006
Accepted:
29
September
2006
Pseudochristianella elegantissima sp. nov. (Cestoda: Trypanorhyncha) is described from the spiral valves of the rays Dasyatis brevis (Garman, 1880) and D. longus (Garman, 1880), from the Gulf of California, Mexico. Also described is P. nudiscula sp. nov. from rays Rhinobatos productus Ayres, 1854, D. longus, Myliobatis longirostris Applegate & Fitch, 1964 and Zapteryx exasperata (Jordan & Gilbert, 1880) from the same location. The species are distinguished from one another and from the only existing species within the genus, P. southwelli Campbell & Beveridge, 1990, by differences in the arrangement of bill-hooks on the external surface of the basal swelling of the tentacle and by the number of hooks in each row of the metabasasl armature.
Résumé
Description de Pseudochristianella elegantissima sp. nov. (Cestoda : Trypanorhyncha) parasite de la valvule spirale des raies Dasyatis brevis (Garman, 1880) et D. longus (Garman, 1880), et de P. nudiscula sp. nov., parasites des raies Rhinobatos productus Ayres, 1854, D. longus, Myliobatis longirostris Applegate & Fitch, 1964 et Zapteryx exasperata (Jordan & Gilbert, 1880) provenant du Golfe de Californie, Mexique. Les nouvelles espèces se distinguent de P. southwelli Campbell & Beveridge, 1990 par la distribution des crochets serpe-à-bec sur la surface externe du renflement basal de la trompe.
Key words: Pseudochristianella / Cestoda / Trypanorhyncha / new species
Mots clés : Pseudochristianella / Cestoda / Trypanorhyncha / nouvelle espèce
© PRINCEPS Editions, Paris, 2006, transferred to Société Française de Parasitologie
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