Rev 11/19/2019

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Ischiodorylaimus Andrassy 1969


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Morphology and Anatomy:

  • Large nematodes, 3 to 8.5 mm long.
  • Cuticle very thick with longitudinal ridges.
  • Lip region slightly offset from body contour.
  • Strong odontostyle, length 2-3x labial diameter.
  • Guiding ring double near anterior of odontostyle.
  • Esophagus muscular, wider posterior portion a little more than 50% of length.
  • Female genital system diovarial, amphidelphic.
  • Vulva longitudinal.
  • Male with numerous, small, supplements arrangerd in two dense groups (fascicles) with some individual supplements bertween them.
  • Female tail elongate to filiform; male tail short and rounded.

Ref: Andrássy, 2009.

Body size range for the species of this genus in the database - Click:
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Freshwater aquatic habitats.

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Categorized as omnivores (Yeates et al., 1993).

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Biology and Ecology:

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Life Cycle:

For Ecophysiological Parameters for this genus, click 
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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.

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: November 19, 2019.