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The mechanism of the attachment of Kuhnia scombri (Kuhn, 1829) (Trematoda: Monogenea) to the gills of its host Scomber scombrus L. including a note on the taxonomy of the parasite

Published online by Cambridge University Press:  06 April 2009

J. Llewellyn
Affiliation:
Department of Zoology and Comparative Physiology, University of Birmingham

Extract

The manner by which Kuhnia scombri (Kuhn, 1829) Sproston, 1945, attaches itself to the gills of Scomber scombrus L. is described.

The parasite lies between the primary gill lamellae with its posterior attachment organs ‘upstream’ with respect to the gill ventilating current of the host.

The adhesive mechanism consists of two sets of organs which become attached to the secondary lamellae: a pair of hooks, provided with powerful muscles, perforates three or four secondary lamellae; and each of the members of four pairs of hinged clamps, operated by its own extrinsic muscle, grasps one or two secondary lamellae.

The description of the adhesive mechanism given differs substantially from that given by Sproston. Sproston's classification of the Diclidophoroidea, being based mainly on her interpretation of the structure of the clamps of Kuhnia, is therefore open to criticism.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1957

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References

Cerfontaine, P. (1896). Contribution à l'étude des Octocotylides. I–III. Arch. Biol., Paris, 14, 497560.Google Scholar
Dollfus, R. Ph. (1946). Amoenitates helminthologicae. IV. Kuhnia n.g. Sproston, 1945 = Octostoma J. Kuhn, 1829. Ann. Parasit. hum. comp. 21, 95–6.Google Scholar
Gallien, L. & Le Calvez, J. (1947). Description de la larve d'Octobothrium scombri v. Ben. Hesse trématode monogénétique marin. Bull. Soc. zool. Fr. 72, 76–8.Google Scholar
Goodrich, E. S. (1930). Studies on the Structure and Development of Vertebrates. London:MacMillan.CrossRefGoogle Scholar
Kuhn, J. (1929). Description d'un nouveau genre de l'ordre des douves et de deux espèces de strangles. Mém. Mus. Hist. nat. Belg. 18, 357–62.Google Scholar
Llewellyn, J. (1941). A description of the anatomy of the monogenetic trematode Choricotyle chrysophryi van Beneden and Hesse. Parasitology, 33, 397405.Google Scholar
Llewellyn, J. (1956). The host-specificity, micro-ecology, adhesive attitudes, and comparative morphology of some trematode gill parasites. J. Mar. biol. Ass. U.K. 35, 113–27.Google Scholar
Otto, A. G.(uilielmus) (1821 a). Conspectus animalium quorundam maritimorum nondum editorum. Pars prior. Vratislaviae: Typis universitatis.Google Scholar
Otto, A. G. (1821 b). Animalium quorundam maritimorum nondum editorum. Pars prior. Verlage Z. J. 1821, no. 18.Google Scholar
Otto, A. W(ilhelm) (1823). Beschreibung einiger neuen Mollusken und Zoophyten. Nova Acta Leap. Carol. 11, 300–2.Google Scholar
Pantin, C. F. A. (1946). Microscopical Technique for Zoologists. Cambridge University Press.Google Scholar
Smyth, J. D. (1951). Specific staining of egg-shell material in trematodes and cestodes. Stain Tech. 26, 255–6.Google Scholar
Sproston, N. G. (1945 a). The genus Kuhnia n.g. (Trematoda: Monogenea). An examination of the value of some specific characters, including factors of relative growth. Parasitology, 36, 176–90.Google Scholar
Sproston, N. G. (1945 b). A note on the comparative anatomy of the clamps in the super family Diclidophoroidea (Trematoda: Monogenea). Parasitology, 36, 191–4.CrossRefGoogle Scholar
Sproston, N. G. (1946). A synopsis of the monogenetic trematodes. Trans. Zool. Soc. Lond. 25, 185600.Google Scholar
Stiles, C. W. & Hassall, A. (1908). Index catalogue of medical and veterinary zoology. Subjects: Trematoda and trematode diseases. Hyg. Lab. Bull. 37, 1196.Google Scholar