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Systematic Parasitology

, 66:223 | Cite as

Description of Pseudorhabdosynochus justinei n. sp. (Monogenea: Diplectanidae) and redescription of P. vagampullum (Young, 1969) Kritsky & Beverley-Burton, 1986 from the gills of the longfin grouper Epinephelus quoyanus (Valenciennes) (Perciformes: Serranidae) in Dapeng Bay, South China Sea

ORIGINAL PAPER

Abstract

Pseudorhabdosynochus justinei n. sp. is reported and described from the gills of the longfin grouper Epinephelus quoyanus in Dapeng␣Bay, South China Sea off the town of Nan’ao, Shenzhen, Guangdong Province, China. P. justinei n. sp. is characterised by the presence of a male copulatory organ (MCO) composed of a moderately quadriloculate organ, a short cone and a long, variable internal tube, and a sclerotised vagina comprising anterior ‘trumpet’ with a characteristic sclerotised ring, slightly medially curved canal, heavily sclerotised principal chamber and star-shaped lateral structure with accessory chambers. It is differentiated from the most similar species, P. caledonicus Justine, 2005, by the absence of a thinly sclerotised posterior tube of the MCO and by the size and morphology of the sclerotised vagina. P. vagampullum (Young, 1969) is redescribed based on specimens collected from the same species of host and locality as P. justinei n. sp. In comparison with the original description by Young [Young, P. C. (1969). Journal of Helminthology, 43, 223–254] and the redescription by Justine [Justine, J.-L. (2005a). Systematic Parasitology, 62, 1–37; (2005b). Systematic Parasitology, 62, 39–45] based on old museum material, the new specimens of P. vagampullum clearly showed the internal anatomy of the terminal genitalia, especially the sclerotised vagina, consisting of a distal, cylindrical canal with an anterior ‘trumpet’ continuing as an unsclerotised, curved, bulb-shaped vaginal pore, a conical principal chamber and a star-shaped lateral structure with an accessory chambers leading to the seminal receptacle via a fine, unsclerotised duct.

Keywords

Seminal Receptacle Male Copulatory Organ Systematic Parasitology Outer Length Terminal Genitalia 
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.

Notes

Acknowledgements

The authors would like to thank the following international colleagues for their help with different aspects of the work: Prof. Jean-Lou Justine of IRD New Caledonia for valuable comments on an early version of the manuscript and for providing manuscripts in press; Dr David I. Gibson of the Natural History Museum, London, for his comments and corrections of the English; Prof. Zhang Jianying in South China Normal University for providing literature; Prof. Susan Lim of the University for Malaya for help with the fixation and staining methods; Dr John E. Randall of the Bishop Museum, Hawaii for the host identification; and Dr Yang Hongzhi of the Fishery Institute of Longgang District, Shenzhen, Guangdong Province for providing experimental facilities. Financial support was provided by grants from the National Natural Science Fund (No. 30370242), the National 863 Science and Technology Project (No. 2001AA621010) and the National Science Fund of Guangdong Province (No. 2002C20312).

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Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  1. 1.Center for Parasitic Organisms and Key Laboratory of Biocontrol, School of Life Sciences, Zhongshan UniversityGuangzhouChina

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