Ichthyocephaloides sumbatus n. sp. (Nematoda: Rhigonematoidea) from Indonesia and additional data on Xystrognathus phrissus Hunt, Pham Van Luc & Spiridonov, 2002

In: Nematology

Ichthyocephaloides sumbatus n. sp., from the gut of Salpidobolus sp. (Spirobolida: Rhinocricidae), collected in the forest covering the mountainous region of Sumba Island, Indonesia, is described and illustrated. The new species is morphologically related to Australasian species of Ichthyocephaloides by the presence of a long, subulate tail in both sexes, distribution and number of genital papillae, presence of genital diverticulum and anterior position of vulva. Ichthyocephaloides sumbatus n. sp. is distinguished from all other nominal species by the highest mean right/left spicule length ratio and the exceptional form of the anterior vulval lip. The original description of Xystrognathus phrissus is supplemented with a description of the juvenile morphology and illustrated with line graphics and SEM images of adult stages. Molecular sequences and phylogenetic trees are provided.

  • AdamsonM.L. (1981). Rhigonema infecta (Leidy, 1849) Christie & Cobb, 1927 and the systematic position of the Rhigonematidae sensu Théodoridès, 1965. Systematic Parasitology 3209-216.

    • Search Google Scholar
    • Export Citation
  • AdamsonM.L. (1987). Rhigonematid (Rhigonematida; Nematoda) parasites of Scaphiostreptus seychellarum (Spirostreptida; Diplopoda) in the Seychelles with comments on the ovejector structure in Rhigonema Cobb, 1898. Canadian Journal of Zoology 651889-1897.

    • Search Google Scholar
    • Export Citation
  • AdamsonM.L.Van WaerebekeD. (1985). The Rhigonematida (Nematoda) of Diplopods: reclassification and its cladistic representation. Annales de Parasitologie Humaine et Comparée 60685-702.

    • Search Google Scholar
    • Export Citation
  • BlaxterM.L.De LeyP.GareyJ.R.LiuL.X.ScheldemannP.VierstraeteA.VanfleterenJ.R.MackeyL.Y.DorrisM.FrisseL.M. (1998). A molecular evolutionary framework for the phylum Nematoda. Nature 39271-75.

    • Search Google Scholar
    • Export Citation
  • De LeyP.BlaxterM. (2002). Systematic position and phylogeny. In: LeeD.L. (Ed.). The biology of nematodes. London, UKTaylor & Francis pp.  1-30.

    • Search Google Scholar
    • Export Citation
  • FloydR.M.RogersA.D.LambsheadP.J.D.SmithC.R. (2005). Nematode-specific PCR primers for the 18S small subunit rRNA gene. Molecular Ecology Notes 5611-612.

    • Search Google Scholar
    • Export Citation
  • HoltermanM.van der WurffA.van den ElsenS.van MegenH.BongersT.HolovachovO.BakkerJ.HelderJ. (2006). Phylum-wide analysis of SSU rDNA reveals deep phylogenetic relationships among nematodes and accelerated evolution towards crown clades. Molecular Biology and Evolution 231792-1800.

    • Search Google Scholar
    • Export Citation
  • HuntD.J. (1994). A synopsis of the Ichthyocephalidae (Nematoda: Rhigonematida) with description of Ichthyocephaloides xesmostoma sp. n. in a diplopod from Papua New Guinea. Afro-Asian Journal of Nematology 4104-108.

    • Search Google Scholar
    • Export Citation
  • HuntD.J. (1999). The Ichthyocephalidae (Nematoda: Rhigonematida). Characterisation and morphology with proposal of two new species of Ichthyocephaloides and additional data on Ichthyocephalus cubensis and I. anadenoboli. International Journal of Nematology 9101-118.

    • Search Google Scholar
    • Export Citation
  • HuntD.J.SutherlandJ.A. (1984). Ichthyocephaloides dasyacanthus n. g., n. sp. (Nematoda: Rhigonematoidea) from a millipede from Papua New Guinea. Systematic Parasitology 6141-146.

    • Search Google Scholar
    • Export Citation
  • HuntD.J.Van LucP.SpiridonovS.E. (2002). Bizarre Ichthyocephalidae (Nematoda: Rhigonematida) from Vietnam with description of Ichthyocephaloides comatus sp. n., Xystrognathus priscus gen. n., sp. n. and X. phrissus gen. n., sp. n. Nematology 4829-843.

    • Search Google Scholar
    • Export Citation
  • NadlerS.A.CarrenoR.A.Mejía-MadridH.UllbergJ.PaganC.HoustonR.HugotJ.-P. (2007). Molecular phylogeny of clade III nematodes reveals multiple origins of tissue parasitism. Parasitology 1341421-1442.

    • Search Google Scholar
    • Export Citation
  • NunnG.B. (1992). Nematode molecular evolution. Ph.D. Dissertation University of Nottingham Nottingham UK.

  • RambautA.DrummondA.J. (2007). Tracer v1.4. Available online at http://beast.bio.ed.ac.uk/Tracer.

  • RonquistF.TeslenkoM.van der MarkP.AyresD.L.AaronD.HöhnaS.LargetB.LiuL.SuchardM.A.HuelsenbeckJ.P. (2012). MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space. Systematic Biology 61539-542.

    • Search Google Scholar
    • Export Citation
  • SeinhorstJ.W. (1959). A rapid method for the transfer of nematodes from fixative to anhydrous glycerin. Nematologica 467-69.

  • SwoffordD.L. (1998). PAUP*: Phylogenetic Analysis Using Parsimony Version 4. Sunderland, MA, USASinauer Associates.

  • ThompsonJ.D.GibsonT.J.PlewniakF.JeanmouginF.HigginsD.G. (1997). The ClustalX windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools. Nucleic Acids Research 244876-4882.

    • Search Google Scholar
    • Export Citation

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