Skip to main content
SpringerLink
Log in

Two new species of free-living nematodes of the family Dorylaimidae (Nematoda, Dorylaimida) from small freshwater bodies of Vietnam

  • Biology, Morphology, and Systematics of Hydrobionts
  • Published:
Inland Water Biology Aims and scope Submit manuscript

Abstract

Illustrated descriptions of two new species of free-living nematodes found in sediments of small water bodies of Vietnam are presented. Laimydorus propinquus sp. n. is morphologically similar to L. papillatus Ahmad, Ahmad, 2002, but it is distinguished from it by a relatively longer and thicker body, a longer tail in females, a more anterior position of vulva, a longer prerectum in females, longer spicules, and large number of precloacal supplements in males. Ischiodorylaimus paracognatus sp. n. differs from the similar species I. cognatus Andrássy, 1983 by a longer body, relatively short pharynx, thicker cuticle, wider lip area, and shorter spicules.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Gusakov, V.A., Gagarin, V.G., and Semenova, L.M., Taxonomic composition and structure of meio- and macrozoobenthos of studied water bodies, in Ekologiya vnutrennikh vod V’etnama (Ecology of Internal Waters of Vietnam), Moscow: Tovar. Nauch. Izd. KMK, 2014, pp. 163–190.

    Google Scholar 

  2. Ahmad, A. and Ahmad, W., Studies of the genus Laimydorus siddigi, 1969 (Dorylaimida: Dorylaimidae) from India, J. Nem. Morph. Syst., 2002, vol. 4, no. 2, pp. 91–109.

    Google Scholar 

  3. Andrássy, I., The free-living nematode fauna of the Hortobágy National Park, in The Fauna of the Hortobágy National Park, Budapest: Akademial Kiado, 1983, pp. 31–46.

    Google Scholar 

  4. Andrássy, I., Free-living nematodes of Hungary (Nematoda errantia). Vol. III, Pedozoologica Hungarica, 2009, vol. 5, pp. 1–608.

    Google Scholar 

  5. Baqri, Q.H. and Jana, A., Nematodes from West Bengal (India). XIII. Four new species of Dorylaimidae, with a key to the species of Laimydorus Siddiqi, 1969 (Dorylaimoidea), Nematologica, 1982, vol. 28, pp. 192–205.

    Article  Google Scholar 

  6. Gagarin, V.G. and Gusakov, V.A., Two new species of the genus Laimydorus Siddiqi, 1969 (Nematoda, Dorylaimida) from small fresh water bodies of Vietnam, Amursk. Zool. Zh., 2014, vol. 6, no. 2, pp. 117–124.

    Google Scholar 

  7. Gagarin, V.G. and Nguyen vu Thanh, Three new species of free-living nematodes from freshwater bodies of North Vietnam, Int. J. Nematol., 2005, vol. 15, no. 1, pp. 110–116.

    Google Scholar 

  8. Khan, T.H. and Ahmad, W., Descriptions of 3 sp. n. and Tylencholaimus asymmetricus sp. n. (Nematoda: Dorylaimida) from India, Indian J. Nematol., 1994, vol. 24, no. 2, pp. 206–210.

    Google Scholar 

  9. Mushtaq, P. and Ahmad, W., Five new and two known species of Dorylaimidae (Nematoda) from Jammu and Kashmir State, India, Int. J. Nematol., 2006, vol. 16, no. 1, pp. 19–24.

    Google Scholar 

  10. Vu, Thanh, Free-living nematodes Monhysterida, Araeolaimida, Chromadorida, Rhabditida, Enoplida, Mononchida, Dorylaimida, Hanoi: Sci. Techn. Publ. House, 2007.

    Google Scholar 

  11. Peña-Santiago, R., Dorylaimidae species listing. Synopsis of the described Dorylaimida of the world. Entomology at Texas A & M. University. https://insects.tamy.edu/research/collection/hallan/Nematoda/Family/Dorylaimidae. Txt (website, cited December 30, 2013), 2007.

    Google Scholar 

  12. Siddiqi, M.R., Crateronema n. gen. (Crateronematidae n. fam.) and Poronema n. gen (Lordellonematinae n. subfam.) and Chrysonemoides n. gen. (Chrysonematidae n. fam.) with a revised classification of Dorylaimoidea (Nematoda), Nematologica, 1969, vol. 15, pp. 81–100.

    Article  Google Scholar 

  13. Vinciguerra, M.T., Dorylaimida. Part II. Superfamily Dorylaimoidea, in Freshwater Nematodes: Ecology and Taxonomy, Wallingford; Oxfordshire: CABI Publ., 2006, pp. 392–467.

    Google Scholar 

  14. Williams, D.D. and Williams, N.E., A counterstaining technique for use in sorting benthic samples, Limnol., Oceanogr., 1974, vol. 19, pp. 152–154.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Nekouzskii raion, Yaroslavl oblast, 152742, Russia

    V. G. Gagarin & V. A. Gusakov

Authors
  1. V. G. Gagarin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. A. Gusakov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V. G. Gagarin.

Additional information

Original Russian Text © V.G. Gagarin, V.A. Gusakov, 2016, published in Biologiya Vnutrennykh Vod, 2016, No. 3, pp. 29–38.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Gagarin, V.G., Gusakov, V.A. Two new species of free-living nematodes of the family Dorylaimidae (Nematoda, Dorylaimida) from small freshwater bodies of Vietnam. Inland Water Biol 9, 242–250 (2016). https://doi.org/10.1134/S1995082916030056

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1995082916030056

Keywords

Search

Navigation