Paracomesoma

  

Contents

  

Rev: 08/24/2026

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

Chromadorea
  Chromadoria
   Chromadorida
Comesomatoidea
               Comesomatidae
    Comesomatinae
       Paracomesoma (Schuurmans Stekhoven, 1950) Hope & Murphy, 1972

Type species: Paracomesoma dubium Filipjev, 1918

    Synonyms:
     

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Morphology and Anatomy:

 

 
  • Cuticle with transverse annules or punctations, sometimes difficult to see.
  • Lateral fields present or absent.
  • Amphideal fovea spiral
  • Anterior sensilla in three distinctly separated rings.
  • Posterior portion of the buccal cavity cylindrical, with strongly sclerotized walls and provided with three or six thorn-like projections at the border of the anterior portion.

Females:

  • Didelphic, amphidelphic

Ref Semprucci, 2015; Huang and Guo, 2022

Body size range for the species of this genus in the database - Click:

   

Males:  

  • Diorchic
  • Spicules long (5-6 x cbd) and slender.
  • Gubernaculum plate-like without dorsal apophysis.

 
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Distribution:

Reported from coral sediments and associated mud.

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Feeding:

Food Sources and Feeding strategies for the genus Paracomesoma

Free-living marine nematodes.

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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:

Predator.

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Management:

 
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References:

Filipjev I. 1918. Nematodes libres marins des environds de Se´bastopol, Partie I. Trudy Osoboi Zoologicheskoi Laboratorii l Sevastopol’skoi Biologicheski Stantsii, 4, 362 pp.

Hope W.D. and Murphy D.G. 1972..A taxonomic hierarchy and checklist of the genera and higher taxa of marine nematodes. Smithsonian Contributions to Zoology 137, 1 -101.

Huang, Y. and Guo, Y. 2022. Free-living Marine Nematodes from the East China Sea. https://doi.org/10.1007/978-981-16-3836-7_5

Semprucci, F. 2015.  A new species of Paracomesoma (Comesomatidae) from Maldives (Indian Ocean) with an emended diagnosis and an updated key of the genus. J. Marine Biol. Assoc. UK. 95:339-347.

 

Revised by Howard Ferris.
Revised: August 24, 2026.