Bunonema husseyi

 

Contents

 

Rev 12/17/2024

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

Chromadorea
Rhabditida
       Rhabditina
        Bunonematoidea
          Bunonematidae

           Bunonema husseyi Bernard, 1979

Synonym:

 

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Morphology and Anatomy:

 

 

 

 

Female:

  •  Relatively small and stout bunonematids,.
  •  Ornamentation on right side consisting of 12-21 pairs of tubercles firmly attached to nematode body and arranged in two rows, a single tubercle posteriorly; each tubercle with usually two (sometimes 3-4) thickened rods;. 
  •  Polygonal pattern between tubercles rather coarse, irregular, extending nearly to dorsal and ventral ridges; pattern becoming obscure on tail
  • In cross-section, left lateral crawling ridge bilobed, the other four entire .
  •  Lip region on right side consisting of a central projection flanked by two smooth, posteriorly lobed setae; a pair of setae located dorsally and ventrally, and a papilla located between each of these setae and the lobed setae .
  •  On left side, a pair of smooth setae subventrally and subdorsally, their bases obscured by leaflike tetrafurcate setae .
  • Stoma cylindrical; cheilorhabdions, telorhabdions distinct, the last forming a small posterior chamber.
  •  Esophagus rhabditoid, metacorpus prominent; basal bulb with crescentic thickenings of the ventral and subdorsal rays embracing the bulb flaps; haustrulum with three short rods.
  • Nerve ring crossing esophagus at isthmus.
  • Excretory pore opposite basal bulb.
  • Gonads didelphic, amphidelphic, and reflexed. Sperms absent.
  • Rectum about twice as long as the body width at the rectointestinal junction .
  •  Tail conical, tapering to a fine tip

Male:

  • Unknown

Ref: Bernard, 1979.


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

 

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Distribution:

 

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Feeding:

 Bacteria    

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Biology and Ecology:

 Spores of the parasitic fungus Macrobiotophthora vermicola appeared to be unable to parasitize the bunonematid nematodes Bunonema husseyi and Rhodolaimus dimorphus possibly because the minute body size and network covering the projecting tubercles of these species prevented spores from adhering to the cuticle proper (Bernard and Arroyo, 1990).

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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:

Bernard, E.C. 1979. New Species of Bunonematoidea (Rhabditida) from Georgia and Tennessee. J. Nematology 11:344-358.

Bernard, E.C. and Arroyo, T.L. 1990. Development, Distribution, and Host Studies of the Fungus Macrobiotophthora verrnicola (Entomophthorales). J. Nematology 22:39-44.

 

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Copyright © 1999 by Howard Ferris.
Revised: December 17, 2024.