Systematic Parasitology

, Volume 69, Issue 3, pp 179–183 | Cite as

New morphological data on the acanthocephalan Hypoechinorhynchus magellanicus Szidat, 1950 (Palaeacanthocephala: Arhythmacanthidae)

  • Zdzisław LaskowskiEmail author
  • Krzysztof Zdzitowiecki


Hypoechinorhynchus magellanicus Szidat, 1950 (Acanthocephala: Arhythmacanthidae) is redescribed based on specimens collected from a sub-Antarctic notothenioid fish, Champsocephalus esox (Günther). The host was caught in the Beagle Channel (Magellanic sub-region). H. magellanicus has a trunk with an antero-dorsal curvature, a spherical proboscis, spines on the anterior region of the trunk, narrow lemnisci which are considerably longer than the proboscis receptacle, six cement glands and a single vaginal sphincter. The proboscis is armed with 40 hooks, including 15 large hooks with roots and 25 rootless basal spines. The large hooks are arranged in 10 alternate rows of one and two hooks. Each single large hook is followed by two spines, and pairs of large hooks are followed by single spines. Ten single spines are also present at the base of the proboscis between the rows. The eggs have polar prolongations of the middle envelope.


Root Length Basal Width Single Spine Basal Spine Blade 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.



This study was supported by the Grant 2 PO4C 016 26 from the Ministry of Education and Science, Poland. The authors are grateful to Professor Stanisław Rakusa-Suszczewski, from the Department of Antarctic Biology in Warszawa, and Director Vitaly Litvinov and Dr Gennady Milinevsky, from the Ukrainian Antarctic Center in Kiev, for our inclusion in the staff of the Seventh Ukrainian Antarctic Expedition and for logistic help with our research. Thanks are also due to members of the Sixth and Seventh Expeditions for their help during the collection of fishes on board the RV ‘Gorizont’ and at the Vernadsky Station. The authors are grateful to two anonymous reviewers for valuable comments and corrections.


  1. Johnston, T. H., & Edmonds, S. J. (1947). Australian Acanthocephala. No. 5. Transactions of the Royal Society of South Australia, 71, 13–19.Google Scholar
  2. Parukhin, A. M. (1989). [Parasitic worms of bottom fishes of southern seas] (pp. 156). Kiev: Naukova Dumka (In Russian).Google Scholar
  3. Pichelin, S. (1999). Hypoechinorhynchus robustus sp. n. from Notolabrus parilus (Labridae) from Western Australia with a discussion on the validity of the Hypoechinorhynchidae (Acanthocephala: Palaeacanthocephala). Folia Parasitologica, 46, 311–315.PubMedGoogle Scholar
  4. Pichelin, S., & Cribb T. H. (1999). A review of the Arhythmacanthidae (Acanthocephala) with a description of Heterosentis hirsutus n.sp. from Cnidoglanis macrocephala (Plotosidae) in Australia. Parasite, 6, 293–302.PubMedGoogle Scholar
  5. Szidat, L. (1950). Los parásitos del róbalo (<<Eleginops maclovinus>> Cuv. & Val.). Congresso Nacional de Pesquerias Maritimas e Industrias Derivadas (1st), Mar del Plata, Buenos Aires, Oct. 1949, 2, 235–270.Google Scholar
  6. Szidat, L. (1965). Estudios sobre la fauna de parasitos de peces antarticos. I. Los parasitos de Notothenia neglecta Nybelin. Servicio de Hidrografia Naval, Secretaria de Marina, Republica Argentina, Publico H, 910, pp. 84.Google Scholar
  7. Szidat, L., & Graefe, G. (1967). Estudios sobre la fauna de parasitos de peces antarticos. II. Los parasitos de Parachaenichthys charcoti. Servicio de Hidrografia Naval, Armada Argentina, Republica Argentina, Publico H, 911, pp. 27.Google Scholar
  8. Van Cleave, H. J. (1931). Heterosentis, a new genus of Acanthocephala. Zoologische Anzeiger, 93, 144–146.Google Scholar
  9. Yamaguti, S. (1939). Studies on the helminth fauna of Japan. Part 29. Acanthocephala II. Japanese Journal of Zoology, 8, 317–351.Google Scholar
  10. Zdzitowiecki, K. (1986). Prevalence of acanthocephalans in fishes of South Shetlands (Antarctic). III. Metacanthocephalus johnstoni Zdzitowiecki, 1983, M. dalmori Zdzitowiecki, 1983 and notes on other species; general conclusions. Acta Parasitologica Polonica, 31, 125–141.Google Scholar
  11. Zdzitowiecki, K. (1990). Reexamination of five Antarctic and subantarctic digenean and acanthocephalan species from Professor Szidat’s collection. Acta Parasitologica Polonica, 35, 31–36.Google Scholar
  12. Zdzitowiecki, K. (1991). Antarctic Acanthocephala. In J. W. Wägele, & J. Sieg (Eds.), Synopses of the Antarctic benthos (Vol. 3, pp. 116). Koenigstein: Koeltz Scientific Books.Google Scholar
  13. Zdzitowiecki, K., & Pisano, E. (1996). New records of acanthocephalans infecting fish off Heard Island (Kerguelen sub-region, sub-Antarctic). Archive of Fishery and Marine Research, 43, 257–264.Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.W. Stefański Institute of ParasitologyPolish Academy of SciencesWarszawaPoland
  2. 2.Department of Antarctic BiologyPolish Academy of SciencesWarszawaPoland

Personalised recommendations