Rev 05/28/2022

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        Deficephalobus De Ley & Coomans, 1990

    Type species D. desenderi De Ley & Coomans, 1990

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Morphology and Anatomy:





  • Small to medium-sized Osstellidae.

  • Lateral field with three incisures.

  • Head with lips almost completely amalgamated , 6 labial and 4 cephalic papillae

  • Amphidial aperturesa wide slit.

  • .Stoma short, with sclerotized short-cylindrical anterior section and a membraneous tapering posterior section.

  • Esophagus slender, tripartite, with corpus 40-50% of total length and cylindrical;  isthmus almost as long as corpus but more slender; posterior bulb offset from isthmus, with or without valve rudiments.

  • Female reproductive system cephalobid, prodelphic and reflexed, but lacking double flexure of ovary tip.

  • Male reproductive system monorchic, with the genital papillae elevated on sockets.

Ref: De Ley and Coomans, 1990




Body size range for the species of this genus in the database - Click:
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Type species described ferom Galapagos Islands, Ecuador.

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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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  • De Ley, P and Coomans, A. 1990. Terrestrial nemtodes of the Galapagos Archipelago. 1: Three Rhabditida nfrom Isla Fernandina. Bull Inst. Roy. Sci, Nat. Belgique, Biologie 60:5-22
  • Bongers, T. 1994. De Nematoden van Nederland
  • Siddiqi, M.R. 2001. Intern. J. Nemat. 11: 266-268.
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    Copyright © 1999 by Howard Ferris.
    Revised: May 28, 2022.