Dinetia

 

Contents

  

Rev: 03/17/2025

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

Chromadorea
  Chromadoria
   Desmodorida
Desmodorina
             Deamodoroidea
               Draconematidae
     Prochaetosominae
  • Dinetia Decraemer & Gourbalt, 1997

    •  Type species of the genus: Dinetia nycterobia Decraemer & Gourbalt, 1997

         

        Synonyms:
         

     

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    Morphology and Anatomy:

     

    • Slightly swollen anterior body for22-23% of total body length.

    •  Cuticle thin and smooth. Body annulation reaching the lip region and including the spiral amphids (male, female), cuticle not thickened in head region;
    • No cephalic helmet  (a distinguishing characteristic)
    • Cephalic adhesion tubes 15-19 without expanded base, located in cervical region.
    • Buccal cavity narrow, unarmed.
    • Pharynx with terminal bulb with moderately thickened lumen wall. P
    • Posteriot adhesion tubes with bell-shaped end; all anterior to cloacal opening/anus.
    • Tail cylindro-conoid with numerous annules.

    1Females:

    • Didelphic amphidelphic, ovaries refelexed
    • Spermathecae not distinct
    • Vagina short, distally sclerotized.
    • Anus with flap
    • Tail non-annulated at end withj one subdorsal somatic seta on each side.

     
     


    Males:      

    • Monorchic; testis oustretched
    • Spicules short, sligtly surced, capitulum round, knob-like
    • Gubernaculum paired, plate-like
    • Cloacal setae 2 pairs

     

    Ref: Decraemer et al., 1997; Decraemer and Gourbalst, 1997

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

    Free-living marine nematodes

     
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    Feeding:

    Microbes, epistrate feeders

     

     

     

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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:

     

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    Management:

     
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    References:

     

    Decraemer W, Gourbault N, Backeljau T 1997. Marine nematodes of the family Draconematidae (Nemata): a synopsis with phylogenetic relationships. Hydrobiologia 357: 185-202

    Decraemer, W.and.Gourbault, N. 1997.Deep-sea nematodes (Nemata, Prochaetosomatinae): new taxa from hydrothermal vents and a polymetallic nodule formation of the Pacific (East Rise: North Fiji and Lau Bassins; Clarion-Clipperton fracture zone). Zool. Script 26:1-12.

     

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    Copyright © 1999 by Howard Ferris.
    Revised: March 17, 2025.