Parahadronchus yuenae

  

Contents

  

Rev 07/21/2026

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
Return to Parahadronchus Menu   Ecosystem Functions and Services
Distribution Management
Return to Iotonchidae Menu Feeding  References
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Classification:

Enoplea
Dorylaimia
       Mononchida
          Mononchina       
Mononchoidea

Iotonchidae

  Parahadronchus yuenae (Thong, 1971) Mulvey, 1978

Synonyms
Hadronchus yuenae Thong, 1971
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Morphology and Anatomy:

 

 
  • Lip region slightly set off from body,
  • Buccal cavity barrel-shaped.
  • Dorsal tooth in posterior half of buccal cavity, apex directed anteriorly, opposed by three longitudinal rows of denticles on the subventral wall of the buccal cavity.
  • Esophago-intestinal junction (cardia) tuberculate.

Female:  

  • Monodelphic, ovary reflexed, on either right or left of intestine

  • Vulva a transverse slit at 57-60% of body length

  • Uterus separated from large oviduct chamber by prominent sphincter

  • Tail elongate

Male:  

 

Ref: Loof, 2006
Parahadronchus yuenae female. A: Anterior end; B: Vulva and genital apparatus; C: Tail; D: Tail terminus. (Scale bars = 50 um.)
Drawings from Loof, 2006		  

 

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

 
 
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Distribution:

 

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Feeding:

Predaceous on other organisms, especially nematodes.
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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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Management:

 

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References:

Loof, P.A.A. 2006. Mononchina (Dorylaimida) from Western Malaysia. Nematology 8:287-310

Mulvey, R.H. 1978. Predaceous nematodes of the family Mononchidae from the Mackenzie and Porcupine river systems and Somerset Island, N.W.T., Canada. Can J. Zool. 56: 1847-1868.

 

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Copyright © 1999 by Howard Ferris.
Revised: July 21, 2026.