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Systematic Parasitology

, Volume 67, Issue 3, pp 187–209 | Cite as

Species of Calydiscoides Young, 1969 (Monogenea: Diplectanidae) from lethrinid fishes, with the redescription of all of the type-specimens and the description of C. euzeti n. sp. from Lethrinus rubrioperculatus and L. xanthochilus off New Caledonia

  • Jean-Lou Justine
Original Paper

Abstract

Type-specimens of all known species of Calydiscoides Young, 1969 from lethrinids, namely C. australis Young, 1969 (type-species), C. difficilis (Yamaguti, 1953) Young, 1969, C. duplicostatus (Yamaguti, 1953) Young, 1969, C. rohdei Oliver, 1984 and C. gussevi Oliver, 1984, were re-examined; the male copulatory organs (MCO) of the type-specimens are figured for comparison. Two groups are distinguished within Calydiscoides: the ‘difficilis’ group, with a massive MCO (C. difficilis and C. rohdei), and the ‘australis’ group, with a branched MCO (C. australis, C. duplicostatus and C. gussevi). Species of Calydiscoides were found in seven species of Lethrinus (Lethrinidae) off New Caledonia, South Pacific. C. australis and C. gussevi from L. miniatus, their type-host, and C. rohdei from L. atkinsoni, its type-host, are re-described from New Caledonian specimens; all were previously known only from off eastern Australia and are new geographical records for New Caledonia. C. euzeti n. sp. is described from specimens collected from L. rubrioperculatus (type-host) and L. xanthochilus off New Caledonia. Specimens from the two hosts have slightly different measurements of the haptoral hard-parts but a similar morphology of the MCO. The new species belongs to the ‘australis’ group and is characterised by its MCO, which is 70–83 μm in length, elongate in shape with a characteristic anterior curved whip.

Keywords

Carmine Picrate Male Copulatory Organ Intestinal Bifurcation Outer Length 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

Les spécimens-types de toutes les espèces connues de Calydiscoides Young, 1969 parasites de Lethrinidae, soit C. australis Young, 1969 (espèce-type), C. difficilis (Yamaguti, 1953) Young, 1969, C. duplicostatus (Yamaguti, 1953) Young, 1969, C. rohdei Oliver, 1984, et C. gussevi Oliver, 1984, ont été examinés, et les organes copulateurs mâles (OCM) des spécimens-types sont figurés pour comparaison. Deux groupes sont distingués dans Calydiscoides, le groupe ‘difficilis’, à OCM massif (C. difficilis et C. rohdei), et le groupe ‘australis’, à OCM formé de branches (C. australis, C. duplicostatus et C. gussevi). Des spécimens de Calydiscoides ont été trouvés chez sept espèces de Lethrinus (Lethrinidae) en Nouvelle-Calédonie, Pacifique Sud. C. australis et C. gussevi chez L. miniatus, leur hôte-type, et C. rohdei chez L. atkinsoni, son hôte-type, sont redécrits à partir de spécimens néo-calédoniens. Ces espèces n’étaient connus que d’Australie Orientale et constituent des nouvelles mentions géographiques pour la Nouvelle-Calédonie. C. euzeti n. sp. est décrit à partir de spécimens récoltés chez L. rubrioperculatus (hôte-type) et L. xanthochilus en Nouvelle-Calédonie. Les spécimens des deux hôtes ont des dimensions des parties sclérifiées du hapteur légèrement différentes, mais une morphologie semblable de l’OCM. La nouvelle espèce appartient au groupe ‘australis’ et est caractérisée par son OCM, long de 70–83 μm, allongé, et portant un fouet antérieur courbé caractéristique.

Notes

Acknowledgements

Louis Euzet (Sète, France) helped with an early study of the new species. Julie Mounier, volunteer technician, and Charles Beaufrère, Audrey Guérin, Anaïs Guillou, Amandine Marie, Chloé Journo, Violette Justine, Eric Bureau, Maya Robert, Damien Hinsinger, Aude Sigura, Guilhem Rascalou and Géraldine Colli, all students, and Frank Moravec and Susan Lim, visitor scientists, participated in the fishing operations and parasitological survey. Alexia Cron and Kostia Arnone, students, participated in an unfinished study in 2003. Sam Tereua, Miguel Clarque and Napoléon Colombani, captains of the R/V ‘Coris’ provided safe navigation. Gérard Mou Tham (IRD) spear-fished certain specimens. Angelo di Matteo (IRD) provided technical help. Ian Beveridge (Melbourne, Australia), and Geoffrey Boxshall and Rod Bray (NHM, London, England) agreed to study, respectively, cestodes, copepods and digeneans. Kent Carpenter (Old Dominion University, Virginia) kindly identified some of the fish from photographs. Jimmy Cassone (MNHN, Paris), Eric P. Hoberg and Pat Pilitt (USNPC, Beltsville) and Takashi Iwaki (MPM, Tokyo) kindly arranged the loan of type-specimens.

References

  1. Carpenter, K. E. (2001). Lethrinidae. Emperors (emperor snappers). In K. E. Carpenter, & V. H. Niem (Eds.), FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 5. Bony fishes part 3 (Menidae to Pomacentridae) (pp. 3004–3030). Rome: FAO.Google Scholar
  2. Carpenter, K. E., & Allen, G. R. (1989). FAO species catalogue, vol. 9. Emperor fishes and large-eye breams of the world (Family Lethrinidae). An annotated and illustrated catalogue of lethrinid species known to date. FAO Fisheries Synopsis No. 125. Rome: FAO, 118 pp.Google Scholar
  3. Ding, X., & Zhang, J. (1996). Monogenoidea of Chinese marine fishes. VII. A new species of the genus Calydiscoides Young, 1969 (Dactylogyridea: Diplectanidae). Annual Bulletin of the Society of Parasitology, Guangdong Province, Guangzhou, 18, 57–59 [in Chinese, with English summary].Google Scholar
  4. Dyer, W. G., Williams, E. H. Jr, & Williams, L. B. (1989). Monogeneans from marine fishes of Okinawa, Japan. Proceedings of the Helminthological Society of Washington, 56, 64–68.Google Scholar
  5. Froese, R., & Pauly, D. (Eds) (2006). FishBase. World Wide Web electronic publication. www.fishbase.org.Google Scholar
  6. Hinsinger, D. D., & Justine, J.-L. (2006). The ‘Pseudorhabdosynochus cupatus group’ (Monogenea, Diplectanidae) in Epinephelus fasciatus, E. howlandi, E. rivulatus and E. merra (Perciformes: Serranidae) off New Caledonia, with descriptions of Pseudorhabdosynochus cyathus n. sp. and P. calathus n. sp. Systematic Parasitology, 64, 69–90.PubMedCrossRefGoogle Scholar
  7. Justine, J.-L. (2005). Species of Pseudorhabdosynochus Yamaguti, 1958 (Monogenea, Diplectanidae) from Epinephelus fasciatus and E. merra (Perciformes, Serranidae) off New Caledonia and other parts of the Indo-Pacific Ocean, with a comparison of measurements of specimens prepared with different methods, and a description of P. caledonicus n. sp. Systematic Parasitology, 62, 1–37.PubMedCrossRefGoogle Scholar
  8. Karyakarte, P. P., & Das, S. R. (1978). A new monogenetic trematode, Lamellospina indiana n.gen., n.sp. (Monopisthocotylea: Diplectanidae) from the marine fish, Nemipterus japonicus (Gunther) in India. Rivista di Parassitologia, 34, 19–22.Google Scholar
  9. Kritsky, D. C., Jiménez-Ruiz, F. A., & Sey, O. (2000). Diplectanids (Monogenoidea: Dactylogyridea) from the gills of marine fishes of the Persian Gulf off Kuwait. Comparative Parasitology, 67, 145–164.Google Scholar
  10. Laboute, P., & Grandperrin, R. (2000). Poissons de Nouvelle-Calédonie. Nouméa, New Caledonia: Éditions Catherine Ledru, 520 pp.Google Scholar
  11. Lim, L. H. S. (2003). Species of Calydiscoides Young, 1969 (Monogenea; Diplectanidae Bychowsky, 1957; Lamellodiscinae Oliver, 1969) from nemipterid fishes off Peninsular Malaysia. Systematic Parasitology, 55, 115–126.PubMedCrossRefGoogle Scholar
  12. Malmberg, G. (1957). Om förekomsten av Gyrodactylus på svenska fiskar. Skrifter Utgivna av Södra Sveriges Fiskeriförening, Årsskrift 1956, 19–76 (In Swedish).Google Scholar
  13. Oliver, G. (1984). Quelques espèces du Genre Calydiscoides Young (Monogenea, Monopisthocotylea, Diplectanidae), parasites de Perciformes du Récif de la Grande Barrière (Australie). Zoologica Scripta, 13, 189–193.CrossRefGoogle Scholar
  14. Oliver, G. (1987). Les Diplectanidae Bychowsky, 1957 (Monogenea, Monopisthocotylea, Dactylogyridea). Systématique. Biologie. Ontogénie. Écologie. Essai de phylogenèse. Thèse d’État, Académie de Montpellier, Université des Sciences et Techniques du Languedoc, 433 pp.Google Scholar
  15. Pillai, V. S., & Pillai, N. K. (1976). Monogenean parasites of the marine fishes of the Kerala coast. I. Aquatic Biology, 1, 85–100.Google Scholar
  16. Randall, J. E. (2005). Reef and shore fishes of the South Pacific. New Caledonia to Tahiti and the Pitcairn Islands. Honolulu: University of Hawaii Press, 707 pp.Google Scholar
  17. Randall, J. E., Allen, G. R., & Steene, R. C. (1990). Fishes of the Great Barrier Reef and Coral Sea. Honolulu: University of Hawaii, 507 pp.Google Scholar
  18. Randall, J. E., & Wheeler, A. (1991). Reidentification of seven tropical Pacific fishes collected and observed by the Forsters during the voyage of HMS Resolution, 1772–75. Copeia, 1991, 760–767.Google Scholar
  19. Rohde, K., Hayward, C., & Heap, M. (1995). Aspects of the ecology of metazoan ectoparasites of marine fishes. International Journal for Parasitology, 25, 945–970.PubMedCrossRefGoogle Scholar
  20. Rohde, K., Hayward, C., Heap, M., & Gosper, D. (1994) A tropical assemblage of ectoparasites: gill and head parasites of Lethrinus miniatus (Teleostei, Lethrinidae). International Journal for Parasitology, 24, 1031–1053.PubMedCrossRefGoogle Scholar
  21. Sato, T. (1978). Synopsis of the sparoid fish genus Lethrinus, with the description of a new species. Bulletin – University of Tokyo No. 15A. Tokyo: The University Press, 70 pp.Google Scholar
  22. Thoney, D. A. (1989). Morphology of Calydiscoides nemipteris, sp. nov. (Monogenea), with a redescription and revision of the Genus. Australian Journal of Zoology, 37, 37–43.CrossRefGoogle Scholar
  23. Venkatanarsaiah, J. & Kulkarni, T. (1980). New monogenetic trematode of the genus Calydiscoides Young, 1969 from the gills of Nemipterus japonicus. Proceedings of the Indian Academy of Parasitology, 1, 23–26.Google Scholar
  24. Yamaguti, S. (1953). Parasitic worms mainly from Celebes. Part. 2 Monogenetic trematodes of fishes. Acta Medicinae Okayama, 8, 203–256 + ix pl.Google Scholar
  25. Young, P. C. (1969). Some monogenoideans of the family Diplectanidae Bychowsky, 1957 from Australian teleost fish. Journal of Helminthology, 43, 223–254.PubMedCrossRefGoogle Scholar
  26. Young, P. C. (1970). The species of Monogenoidea recorded from Australian fishes and notes on their zoogeography. Anales del Instituto de Biología, Universidad Nacional Autónoma de México, Serie Zoología, 41(1), 163–176.Google Scholar
  27. Zhang, J. Y., Yang, T. B., & Liu, L. (2001). Monogeneans of Chinese marine fishes. Beijing: Agriculture Press, 400 pp. (In Chinese).Google Scholar
  28. Zhang, J. Y., Yang, T. B., Liu, L., & Ding, X. J. (2003). A list of monogeneans from Chinese marine fishes. Systematic Parasitology, 54, 111–130.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.Équipe Biogéographie Marine Tropicale, Unité Systématique, Adaptation, Évolution (CNRS, UPMC, MNHN, IRD)Institut de Recherche pour le DéveloppementNouma CedexNew Caledonia

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