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Scanning electron microscopy and intraspecific variation in Euchordodes nigromaculatus from New Zealand

Published online by Cambridge University Press:  05 June 2009

A. Schmidt-Rhaesa ,
F. Thomas  and
R. Poulin
A. Schmidt-Rhaesa*
Affiliation:
Department of Biology, University of South Florida, 4202 East Fowler Avenue, LIF 136, Tampa, FL 33620-5150, USA
F. Thomas
Affiliation:
Department of Zoology, University of Otago, PO Box 56, Dunedin, New Zealand
R. Poulin
Affiliation:
Department of Zoology, University of Otago, PO Box 56, Dunedin, New Zealand
*
*Fax: 813 974 3263 E-mail: aschmid@chuma.cas.usf.edu
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Abstract

Taxonomic characters of the male posterior end and the body cuticle of Euchordodes nigromaculatus (Nematomorpha) were described by scanning electron microscopy (SEM) and compared with the original description by Poinar (1991a) and with other Euchordodes species. Intraspecific variation was found in the body length, the distance between the cloacal opening and the posterior end and especially in the form of the male posterior end. The latter either possesses two short lobelike structures and a ventral groove or lacks these structures. The importance of SEM investigations and observations of intraspecific variation is stressed for the taxonomy of nematomorph species.

Type
Research Papers
Information
Journal of Helminthology , Volume 72 , Issue 1 , March 1998 , pp. 65 - 70
Copyright
Copyright © Cambridge University Press 1998

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References

Čanadjija, S. (1956) Strunaši (Gordioidea) iz zbirke Zagrebačkog Zoološkog Museja. Bulletin du Musée d'Histoire Naturelle Pays Serbe (Ser. B) 8, 1–38.Google Scholar
Heinze, K. (1937) Die Saitenwürmer (Gordioidea) Deutschlands. Eine systematisch-faunistische Studie über Insektenparasiten aus der Gruppe der Nematomorpha. Zeitschrzft für Parasitenkunde 9, 263–344.CrossRefGoogle Scholar
Heinze, K. (1941) Saitenwürmer oder Gordioidea (Nematomorpha). 78 pp. in Dahi, F. (Ed.) Die Tierwelt Deutschlands 39, 3. Stuttgart, Gustav Fischer Verlag.Google Scholar
Miralles, D.A.B. de & Villalobos, L.C. de (1993) Redescripcion de Gordius agasizzi Montgomery, 1898, de Pseudochordodes occidentalis comb. n. y nuevo registro para P. bedrigae (Camerano, 1896) (Gordioidea, Nematomorpha). Iheringia Ser. Zoologia 75, 107–111.Google Scholar
Poinar, G.O. (1991a) Hairworm (Nematomorpha: Gordioidea) parasites of New Zealand wetas (Orthoptera: Stenopelmatidae). Canadian Journal of Zoology 69, 1592–1599.CrossRefGoogle Scholar
Poinar, G.O. (1991b) Nematoda and Nematomorpha. pp. 249–283 in Thorp, J.H. & Covich, A.P. (Eds) Ecology and classification of North American freshwater invertebrates. San Diego, Academic Press.Google Scholar
Poulin, R. (1995) Hairworms (Nematomorpha: Gordioidea) infecting New Zealand short-horned grasshoppers (Orthoptera: Acrididae). Journal of Parasitology 81, 121–122.CrossRefGoogle ScholarPubMed
Schmidt-Rhaesa, A. (1997) Nematomorpha. 124 pp. in Schwoerbel, J. & Zwick, P. (Eds) Süsswasserfauna von Mitteleuropa 4/4. Stuttgart, Gustav Fischer Verlag.Google Scholar
Smith, D.G. (1991) Observations on the morphology and taxonomy of two Parachordodes species (Nematomorpha, Gordioida, Chordodidae) in southern New England (USA). Journal of Zoology 225, 469–480.CrossRefGoogle Scholar
Spiridonov, S.E., Pikula, Z.P. & Drljevic, E.T. (1992) Redescription of Dacochordodes bacescui Căpuse, 1966 (Nematomorpha: Chordodidae). Helminthologia (Bratilava) 29, 193–196.Google Scholar