Odontopharynx longicaudata

 

Contents

 

Rev: 03/08/2023

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

Classification:

Chromadorea
  Diplogastria
   Diplogastrida
    Diplogastroidea
Odontopharyngidae
        Odontopharynx longicaudata De Man, 1912
 
  Odonopharynx longicaudata is the type species of the genus.   
    Synonyms:
      
Back to Top

Morphology and Anatomy:

51Predator.jpg (50143 bytes)

Anterior of Odontopharynx longcaudata

Photo by J. Chitamber

Females:

  •  Usually larger than males.
  • Monodelphiic prodelphic, ovary reflexed, sometimes reflex extends posterior to vulva.
  • Vulva lips may protrude.
  •  Spermatheca absent.
  •  Two postuterine sacs, left sac usually longest, both filled with sperm.
  •  Anus crescent shaped; posterior lip with one punctation, obscure.

  
 

Males:

  •  Monorchic, testis reflexed.
  • Two spicules, unequal size; left spicule well developed, arcuate; right spicule reduced, one-sixth length of left, narrowly triangular.
  •  Gubernaculum well developed. Three distinct cloacal glands.
  • Papillae numerous, positions detailed in original description,.

  Ref: Chitambar and Noffsinger, 1989

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

 

Back to Top

Distribution:

Originally described by de Man in 1912 from a rotting hyacinth bulb in Wageningen, Netherlands. In Europe, O. longicaudata has been found in coastal saline soils and ground water and in soil around the roots of various salt tolerant plants.

The rpecies was discovered in California, USA, in nonsaline sandy soil around roots of Poa annua (annual bluegrass) growing on a golf course in San Francisco. (Chitambar and Noffsinger, 1989).

Back to Top

Economic Importance:

 

 

Back to Top

Feeding:

Predator on other nematodes.

Back to Top

Biology and Ecology:

Odontopharynx longicaudata can be cultured on the bacterivore, Acrobeloides sp. as prey on 1.5% water agar. Such cultures faciliate study of the development and predaceous behavior of the nematode.

Odontopharynx longicaudata attacked and killed 6 out of 17 prey species provided and 100 of the individuals of Anguina pacificae were killed (Chitamber and Noffsinger, 1989b).

 

Back to Top

Life Cycle:

Life cycle completed in 13-14 days when feeding on Acrobeloiodes sp on agar plates (Chitambar and Noffinger, 1989).

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters
Back to Top

Ecosystem Functions and Services:

Predator on other nematodes.

Back to Top

Management:

 
Back to Top

References:

Chitambar, J.J., Noffsinger, E.M. 1989. Taxonomy and postembryonic stages of the nematode predator Odontopharynx longicaudata de Man, 1912 (Diplogasterida). J. Nematology, 21:189-201.

Chitambar, J.J., Noffsinger, E.M. 1989b. Predaceous Behavior and Life History of Odontopharynx longicaudata (Diplogasterida). J. Nematology 21:284-291,

De Man, J.G. 1912. Odontopharynx longicaudata n.g. n.sp. Zoologische Jahrbucher 32:637-643.

Copyright © 1999 by Howard Ferris.
Revised: March 08, 2023.