Neoactinolaimus duplicidentatus




Rev 12/21/2021

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
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Neoactinolaimus duplicidentatus (Andrassy, 1968) Andrassy, 1970

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Morphology and Anatomy:



  • Body slender, cuticle thin
  • Labial region rounded, offset by a slight depression
  • Four onchia, each with two small teeth
  • Odontostyle length 1.7 times labial width
  • Esophagus wide in middle region
  • Rectum 1.6x and prerectun 6-7x anal body diameter


  • Didelphic, amphidelphic
  • Vulva longitudinal with sclerotized lips
  • Vulva-anus distance 4-5x tail length
  • Tail filiform to hair-like tip


  • Paired testes, long vas deferens.
  • Spicules slender, arcuate, 62-68 um long.
  • Male tail short, conoid, rounded.

Ref Andrassy, 2010


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


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Reported from warm lake water and wet soil

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  Categorized by Yeates et al., 1993 as a predator and omnivore.   

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Biology and Ecology:

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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters


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Ecosystem Functions and Services:


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Andrassy, I. 2009. Free-living Nematodes of Hungary III.  Hungarian Natural History Museum, Budapest. 608p.

Andrassy, I. 2010. Two new nematode species of the subfamily Brittonematinae (Dorylaimida: Actinolaimidae). Opusc. Zool. Budapest, 2010, 41(2): 175–190

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 December 21, 2021.