Two new species of the genus Ptycholaimellus Cobb, 1920 (Nematoda: Chromadoridae) from coastal zone of North Vietnam sea

Nguyen Vu Thanh, Nguyen Dinh Tu, Vladimir G. Gagarin, Alekcei V. Tchesunov, Nguyen Thanh Hien
Author affiliations

Authors

  • Nguyen Vu Thanh VAST
  • Nguyen Dinh Tu VAST
  • Vladimir G. Gagarin Institute of Inland Water Biology, Russian Academy of Science
  • Alekcei V. Tchesunov Moscow State University, Faculty of Biology, Department of Invertebrate Zoology
  • Nguyen Thanh Hien VAST

DOI:

https://doi.org/10.15625/0866-7160/v34n4.2675

Keywords:

Chromadoridae, Ptycholaimellus, free-living marine nematodes, new species, North Vietnam coastal sea

Abstract

Two new marine nematode species of the family Chromadoridae collected from coastal zone of North Vietnam sea were described and illustrated are Ptycholaimellus brevisetosus sp. n. and Ptycholaimellus areniculus sp. n.. The new species P. brevisetosus sp. n. resembles to P. pandispiculatus (Hopper, 1961) but differs from it by the longer body, absence of somatic and cervical setae, more wide labial region, longer cephalic setae and longer spicules, and P. areniculus sp. n. resembles to P. macrodentatus (Timm, 1961) but differs from it by the longer body, relatively shorter cephalic setae, absence of knob-like swellings at base of dorsal tooth in stoma and presence of small piece in spicular apparatus of males.

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Published

13-01-2013

How to Cite

Thanh, N. V., Tu, N. D., G. Gagarin, V., V. Tchesunov, A., & Hien, N. T. (2013). Two new species of the genus Ptycholaimellus Cobb, 1920 (Nematoda: Chromadoridae) from coastal zone of North Vietnam sea. Academia Journal of Biology, 34(4), 408–413. https://doi.org/10.15625/0866-7160/v34n4.2675

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