Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 2799 No. 1: 24 Mar. 2011
Type: Articles
Published: 2011-03-24
DOI: 10.11646/zootaxa.2799.1.5
Page range: 49–62
Abstract views: 39
PDF downloaded: 1

Re-description of two atypical species of Pungentus Thorne & Swanger, 1936, with proposal of Stenodorylaimus gen. n. (Nematoda, Dorylaimida, Nordiidae)

Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus ‘Las Lagunillas’ s/n, Edificio B3, 23071 - Jaén, Spain
Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus ‘Las Lagunillas’ s/n, Edificio B3, 23071 - Jaén, Spain
Nematoda Dorylaimida morphology nematodes new genus Pungentus re-description taxonomy type material

Abstract

Two species of the genus Pungentus originally described by Thorne and Swanger (1936), namely P. intertextus and P. textilis, are re-described on studying type material. Both species are very similar morphologically and characterized by having large general size (body 3.7–5.1 mm long), odontostyle comparatively long (about twice the lip region width) and slender, with small aperture, relatively short neck (b-ratio = 7.0–9.0), rounded conoid tail, and slightly irregularly spaced ventromedian supplements which lack hiatus. This morphological pattern significantly differs from that found in other Pungentus species, and hence a new genus Stenodorylaimus is proposed to accommodate the two species herein studied. Descriptions, measurements, line illustrations and LM pictures are provided for both species. The new genus is compared in detail with its closest relatives.

References

  1. Ahmad, M. & Jairajpuri, M.S. (1979) Nematodes of high altitudes in India VIII. Pungentus clavatus n. sp. with a key to species of the genus Pungentus (Nematoda : Dorylaimida). Revue de Nématologie, 2, 185–189.

    Altherr, E. (1950a) De quelques nématodes des garides valaisannes. Bulletin Murithienne de la Société Valaisanne de Sciences Naturelles, 67, 90–103.

    Altherr, E. (1950b) Les nématodes du Parc National Suisse. Ergebnisse der wissenschaftlichen Untersuchung des schweizerischen Nationalparks, 1, 1–46.

    Altherr, E. (1952) Les nématodes du Parc National Suisse. 2e partie. Ergebnisse der wissenschaftlichen Untersuchung des schweizerischen Nationalparks, 3, 315–356.

    Andrássy, I. (1959) Taxonomische Übersicht der Dorylaimen (Nematoda). I. Acta Zoologica Academiae Scientiarum Hungaricae, 5, 191–240.

    Andrássy, I. (2009) Free-living nematodes of Hungary, III (Nematoda errantia). Hungarian Natural History Museum. Budapest, Hungary. 608 pp.

    Coomans, A. & Geraert, E. (1962) Some species of Dorylaimoidea found in Belgium. Nematologica, 8, 233–241.

    Dhanachand, C. & Jairajpuri, M.S. (1981) Some observations on the genus Paraxonchium (Dorylaimida) with description of a new species from Manipur, India. Indian Journal of Nematology, 11, 61–66.

    Dujardin, F. (1845) Histoire Naturelle des helminthes ou vers intestinaux. Paris, France, 654 pp.

    Goodey, T. (1963) Soil and freshwater nematodes. 2nd edition revised by J.B. Goodey. Methuen, London, UK. 544 pp.

    Holterman, M., Rybarczyk, K., Van den Elsen, S., Van Megen, H., Mooyman, P., Peña-Santiago, R., Bongers, T., Bakker, J. & Helder, J. (2008) A ribosomal DNA-based framework for the detection and quantification of stress-sensitive nematode families in terrestrial habitats. Molecular Ecology Resources, 8, 23–34.

    Jairajpuri, M.S. (1965) Qudsianema amabilis n. gen., n. sp. (Nematoda: Dorylaimoidea) from India. Proceedings of the Helminthological Society of Washington, 31, 59–64.

    Jairajpuri, M.S. & Baqri, Q.H. (1966) Sectonema procta n. sp., and Pungentus angulatus n. sp., two new soil-inhabiting nematodes. Nematologica, 12, 396–402.

    Jairajpuri, M.S. & Siddiqi, M.S. (1964) On a new nematode genus Nordia (Dorylaimodea: Nordianae n. subfam.) with remark on the genus Longidorella Thorne, 1939. Proceedings of the Helminthological Society of Washington, 31, 1–9.

    Khan, T.H., Jairajpuri, M.S. & Ahmad, W. (1987) Gopalus swarupi gen. n., sp. n. (Nematoda: Dorylaimida) from India. Indian Journal of Nematology, 17, 288–291.

    Loof, P.A.A. & Coomans, A. (1970) On the development and location of the oesophageal gland nuclei in Dorylaimina. Proceedings of the IX International Nematology Symposium (Warsaw, Poland, 1967), 79–161.

    Loof, P.A.A. & Zullini, A. (2000) Free living nematodes from nature reserves in Costa Rica. 1. Dorylaimina. Nematology, 2, 605–633.

    de Man, J.G. (1912) Helminthologische Beiträge. Zoologischer Jahrbuch, Jena, 15, 439–464.

    Palomo, A. (1979) Consideraciones biocenóticas sobre la nematofauna edáfica de las Sierras de Gata y Béjar. Boletín de la Real Sociedad Española de Historia Natural, 77, 305–314.

    Robbins, R.T. & Weiner, A.C. (1978) Californidorus pinguicaudatus n. gen., n. sp. from California (Nematoda: Longidoridae). Revue de Nématologie, 1, 189–195.

    Siddiqi, M.R. (1969) Crateronema n. gen. (Crateronematidae n. fam.), Poronemella n. gen. (Lordellonematinae n. sub-fam.) and Chrysonemoides n. gen. (Chrysonematidae n. fam.), with a revised classification of Dorylaimoidea (Nematoda). Nematologica, 15, 81–100.

    Thorne, G. (1939) A monograph of the nematodes of the superfamily Dorylaimoidea. Capita Zoologica, 8, 1–261.

    Thorne, G. & Swanger, H.H. (1936) A monograph of the nematode genera Dorylaimus Dujardin, Aporcelaimus n. g., Dorylaimoides n. g. and Pungentus n. g. Capita Zoologica, 6, 1–223.

    Yeates, G.W. (1967) Studies on nematodes from dune sands. 6. Dorylaimoidea. New Zealand Journal of Science, 10, 752–784.