Cricolaimus

  

Contents

  

Rev: 12/05/2022

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

Chromadorea
  Chromadoria
       Plectida
Camacolaimoidea
Rhadinematidae
        Cricolaimus Southern, 1914
 
 Type species: Cricolaimus elongatus Southern, 1914     

    Synonyms:
     

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Morphology and Anatomy:

 
  •  Body long, cylindrical, slender.
  • Cuticle transversely striated, lateral alae absent.
  • Lips merged into one large dorsal and one large ventral lip with elongated inner and outer labial papillae, lateral lips and their inner and outer sensilla reduced.
  • Cheilostom bilaterally symmeytrical, with  two anteriorly directed claw-like projections, one mid-dorsal and one mid-ventral; no gymnostom or stegostom.
  • Amphid foveslarge, unispiral, with wide groove, located slightly more than one head diam. from anterior end.
  • Cervical and somatic setae present.
  • Pharynx cylindrical with a posterior oval bulb, muscular. Cardia embedded in intestine.


    Females:     not found

  
 

Males:  

  • Rreproductive system diorchic; testes long, directed anteriorly.
  • Spicules relatively short, strongly curved, manubrium enlarged, gubernaculum with apophysis.
  • Many midventral precloacal tubular supplements and one precloacal setiform sensillum.
Body size range for the species of this genus in the database - Click:
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Distribution:

Marine nematodes in sublittoral sand.

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Feeding:

 
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Biology and Ecology:

Free-living marine and estuarine nematodes

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Life Cycle:

For Ecophysiological Parameters for this genus, click 
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Ecosystem Functions and Services:

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Management:

 
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References:

Fonseca-Genevois, V. da, Smol, N., Bezerra, T.N. 2011. Free-living nematodes from a colonisation experiment in the upwelling area of Arraial do Cabo, Rio de Janeiro, Brazil: Lavareda decraemerae gen. n., sp. n. and emended diagnosis of Cricolaimus Southern, 1914 (Plectida: Rhadinematidae). Nematology 13:761-772.

Copyright © 1999 by Howard Ferris.
Revised: December 05, 2022.