Gammanema

 

Contents

 

Rev: 09/06/2024

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

Chromadorea
  Chromadoria
   Chromadorida
    Selachinematidae
Choniolaiminae
       Gammanema Cobb, 1920

Type species of the genus: Gammanema uniformis (Cobb, 1920) Tchesunov& Okhlopkov, 2006

    Synonyms:
      Trogolaimus uniformis Cobb, 1920

 

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Morphology and Anatomy:

 

Females:
  • Didelphic, amphidelphic, ovaries antidromously reflexed.

Ref: Tchesunov and Okhlopkov, 2006

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

   
 

Males:  

  • .Diorchic with opposed testes,
  • Pre-cloacal, ventromedian supplementas 19-22. Each supplement cup-shaped or sucker-shaped,
  • Minute midventral spine 2 um long present just anterior to cloaca.
  • Spicules large, strong, slightly arcuate, distally acute and proximally with ventrally or laterally bent knobs.
  •  Gubernaculum  slightly arcuate and nearly parallel  to spicules. .
  • Lateroventral series of four to six conical papillae 1-2 µm long on either side of tail.

 

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Distribution:

Predatory marine nematodes. Specimens described from Kennebunk, Maine, USA

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Feeding:

Predators

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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:

Cobb, N.A. 1920. One hundred new nemas. (Type species of 100 new genera). Contributions to a Science of Nematology (Baltimore) 9, 217-343

Tchesunov, A.V. and Okhlopkov, J.R. 2006. On some selachinematid nematodes (Chromadorida: Selachinematidae) deposited in the collection of the Smithsonian National Museum of Natural History. Nematology 8:21-24.

 

Copyright 1999 by Howard Ferris.
Revised: September 06, 2024.