Hystrignathus

  

Contents

  

Rev 03/06/2023

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
Return to Hystrignathus Menu Ecosystem Functions and Services
Distribution Management
Return to Hystrignathidae Menu Feeding  References
    Go to Nemaplex Main Menu   Go to Dictionary of Terminology

 

Classification:

Enoplea
Rhabditida
    Spirurina
                             Thelastomatoidea
Hystrignathidae

Hystrignathus Leidy, 1850

      Back to Top

Morphology and Anatomy:

.
  • Cuticle in cervical region with transverse rows of spines;  first row with 16 elements .
  •  Cephalic region formed by two annules
  • Esophageal corpus divided, posterior portion clavate .

    Female:      
  •  Didelphic
  • Tail region subulate to attenuated . 
  • Comments: The only other didelphic hystrignathid with 16 spines in the first row of cervical spines is Soaresnema
Males:

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

Back to Top

Distribution:

Reported from Australia, North and South America, Africa and Madagascar .

Back to Top

Feeding:

Intestinal parasites of insects, especially Coleoptera.
Back to Top

Biology and Ecology:
Back to Top

Life Cycle:

For Ecophysiological Parameters for this genus, click 
Back to Top

Ecosystem Functions and Services:

 

Back to Top

Management:

 

Back to Top

References:

Adamson, M.L. and Van Waerebeke, D. 1992. Revision of the Thelastomatoidea, Oxyurida of invertebrate hosts III . Hystrignathidae. Systematic Parasitology 22:111-130

Back to Top
Copyright © 1999 by Howard Ferris.
Revised: March 06, 2023.