Epsilonema multispiralum

 

Contents

 

Rev 03/08/2022

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle

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Ecosystem Functions and Services
Distribution Management
Return to Epsilonematidae Menu Feeding  References
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 Classification:

Chromadorea
  Chromadoria
   Desmodorida
Desmodorina
             Desmodoroidea
              Epsilonematidae
Epsilonematinae
    Epsilonema multispiralum Raes, Vanreusel & Decraemer, 2003.
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    Morphology and Anatomy:


     
       
    • Body short (0.3 mm), slightly enlarged in regions of pharync and reprodictive syustem, otherwise more slender.
    • Amphids apertures on this species are characteristic with 3.25 turns in the spiral.
    • Ambulatory setae located in the posterior third of the body, arranged in subventral rows.

    Male

    • Monorchic, testis outstretched on ventral side of intestine.
    • Spicules slender, slightly curved.
    • Gunernaculum present.

    Female:

    • Didephic, amphidelphic with gonads on ventral side of intestine.
    • Vulva surrounded by radial cuticular ridges.

    Ref: Raes et al., 2003

    Epsilonematidae are characterized by having an ε-shaped body (hence the name) and setae used in looper locomotion on the ventral surface of the body. 

    The condition of separate outlets for the three caudal glands is common among the genera of the Epsilonematidae.

     

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

     

     

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    Distribution:

    Described from a deep-sea cold-water coral degradation zone at 1005 meters depth off the coast of Belgium.  Coral fragments are an ideal substrate.

     

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    Feeding:

     

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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:

    Raes, M., W. Decraemer and A. Vanreusel. 2006. Postembryonic morphology in Epsilonematidae, with a discussion on the variability of caudal gland outlets.  J. Nematology 38:97-118.

    Raes, M. Vanreusel, A. Decraemer, W. 2003. Epsilonematidae (Nematoda) from a cold-water coral environment in thePorcupine Seabight, with a discussion on the status of the genus Metaglochinema  Gourbault & Decraemer, 1986. Hydrobiologia 505:49-72.

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    Copyright © 1999 by Howard Ferris.
    Revised: March 08, 2022.