Calyptronema

 

Contents

  

Rev 07/02/2026

  Classification Hosts
Morphology and Anatomy Life Cycle
Return to Calyptronema Menu Economic Importance Damage
Distribution Management
Return to Enchelidiidae Menu Feeding  References
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Classification:
Enoplea
     Enoplia
        Enoplida
Oncholaimina
              Oncholaimoidea
                    Enchelidiidae

Calyptronema Marion, 1870

Type sepecies of the genus: Calyptronema paradoxum Marion, 1870

Synonyms:
    

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Morphology and Anatomy:

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Female:

  • Buccal cavity in two unequal portions separated by a transverse band, ring or row of denticles; other rings which might be present are faint and concentrated at the posterior end of the buccal cavity.
  • Three slender teeth, one ventrosublateral is largest and eversible. Posterior portion of the buccal cavity large, asymmetrical, almost ventricose.
  • Posterior pharynx anteriorly with dilated sclerotized lumen.

Male

  • Buccal cavity absent, amphid relatively larger than in female
  • Lumen of pharynx not dilated and sclerotized.
  • Spicules long and arcuate,
  • Precloacal papillae present.

.Ref: Smol et al., 2014
Body size range for the species of this genus in the database - Click:
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Distribution:

A genus of free-living mainly marine nematodes. One species, C. maxweberi reported in brackish water and freshwater.

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Economic Importance:

 

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Feeding:

Food Sources and Feeding strategies for the genus Calyptronema

    

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Life Cycle:

 

For Ecophysiological Parameters for this genus, click 
 
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Damage:

 

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Management:

 

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References:

Neres, P.F., Fonseca-Genevois, G.V. and  Esteves, A.M. 2013. New records and species of Enchelidiidae (Nematoda): Symplocostoma
brasiliensis sp. nov. and a first description of the female of Calyptronema pigmentatum Gerlach, 1957), Marine Biology Research, 9:10: 990-1004,

Smol, N., Muthumbi, A., Sharma, J. 2014. Order Enoplida, 7.3. In Schmidt-Rhaesa, A. (ed) Handbook of Zoology. De Gruyter, Berlin

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Copyright 1999 by Howard Ferris.
Revised: July 02, 2026.