Laimydorus baldus




Rev 12/21/2021

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
Return to Laimydorus Menu Ecosystem Functions and Services
Distribution Management
Return to Dorylaimidae Menu Feeding  References
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Laimydorus baldus Baqri & Jana, 1983


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Morphology and Anatomy:

Large nematodes.
Cuticle smooth.
Head region continuous with body contour or slightly offset.
Odontostyle strong and straight, longer than labial diameter.  Guiding ring double and obvious.
Females diovarial, amphidelphic.
Female tail attentuated to filiform.
Male pre-rectum long, beginning anterior to supplements.
Male with 15-40 small ventomedian supplements.
Male tail short and rounded
(Andrassy, 2009).

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


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Aquatic and moist habitats.

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Categorized as an omnivore (Yeates et al., 1993) and studied as a predator by Bilgrami and Gaugler (2005).




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Biology and Ecology:

Feeding activities of the predatory nematodes Laimydorus baldus and Discolaimus major preying on Hirschmanniella oryzae were studied under laboratory
conditions by Bilgrami and Gaugler, 2005:

  Predators starved for 10 days exhibited maximum response to the presence of prey.  Predators detected prey kairomones at distances of 2-3 cm on agar plates (Pervez and Bilgrami, 2000),

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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.

Bilgrami, A.L. and Gaugler, R. 2005. Feeding behaviour of the predatory nematodes Laimydorus baldus and Discolaimus major (Nematoda: Dorylaimida). Nematology 7:11-20.

Pervez, R., Bilgrami, A.L. 2000. Some factors influencing chemoattraction behaviour of dorylaim predators, Laimydorus baldus and Discolaimus major towards prey kairomones. International Journal of Nematology  10:41-48.

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: December 21, 2021.