Dorylaimoides shapotouensis




Rev 08/03/2020

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Morphology and Anatomy Life Cycle
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                           Dorylaimoides shapotouensis Wu, Xu, Xie & Wang, 2019
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Morphology and Anatomy:


  • Body slender, Cuticle with fine transverse striations, Lateral chord occupying 14–17% of the body diameter at mid-body.

  • Lip region rounded, offset by a constriction, about 0.3 times as wide as body diameter at posterior end of esophagus.

  • Lips practically amalgamated, labial papillae protruding.

  • Amphidial foveae cup shaped, opening at the level of the constriction, apertures about 0.6 times as wide as lip region width.

  • Odontostyle asymmetrical, with a distinct lumen.

  • Odontophore arcuate, narrowing posteriorly, about 0.8 times as long as the odontostyle.

  • Guiding ring distinct and single.

  • Esophagus in three parts, anterior slender, narrower isthmus-like portion and a cylindrical basal expansion which occupies 21–28% of the total esophageal length.

  • Cardia short, rounded. 

  • Prerectum 3.3–5.9 times and rectum length 0.9–1.5 times the body diameter at anus.

  • Tail elongate conoid with rounded terminus, posterior region bent dorsally, 2.8–3.9 times the anal body diameter long.


  • Genital system didelphic-amphidelphic; ovaries reflexed, usually reaching the junction of oviduct and uterus

  • Oviduct consists of a wider pars dilatata and a slender part; sphincter present at the junction of oviduct and uterus.

  • Uterus simple and with a wide lumen

  • Vulva transverse.

  • Vagina extending inwards 45–56.5% of corresponding body width. Pars proximalis vaginae with thick walls; pars refringens absent.

Ref: Wu et al., 2019



Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:



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Biology and Ecology:

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Life Cycle:


Ecophysiological Parameters:

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Ecosystem Functions and Services:


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Wu, W-J., Xu, C-L., Xie, H., Wang, D-W. 2019. Three new species, one new genus and subfamily of Dorylaimida (de man, 1876) Pearse, 1942, and revisions of the families Tylencholaimellidae Jairajpuri, 1964 and Mydonomidae Thorne, 1964 (Nematoda, Dorylaimida). PeerJ 7:e7541

Yeates, G.W., T. Bongers, R. G. M. De Goede, D. W. Freckman, and S. S. Georgieva. 1993. Feeding habits in soil nematode families and genera—An outline for soil ecologists. Journal of Nematology 25:315-331

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Copyright 1999 by Howard Ferris.
Revised: August 03, 2020.