Ohbayashinema

  

Contents

  

Rev: 04/11/2026

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
Return to Ohbayashinema Menu Ecosystem Functions and Services
Distribution Management
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Classification:

         Chromadorea

Chromadoria

         Rhabditida

Rhabditina

             Infraorder Rhabditomorpha
                  Heligmosomoidea
       Heligmosomidae
Heligmosominae
                   
                  Ohbayashinema Durette-Desset, 1974
  •  
    •       Type species of the genus: Ohbayashinema ochotonae Durette-Desset, 1974

        Synonyms:

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    Morphology and Anatomy:

    Characteristics of the genus:

     

    Females:

    •  Monodelphic, posterior genital branch atrophied
    • Ovejector  in 3 parts: an enlarged proximal part, strongly muscular only adjacent to the sphincter, a cylindrical narrow median part with only one row of eggs,
      and a swollen distal part, very often bulbous

    Ref: Durette-Desset et al., 2000

    Males:  

    • Caudal bursa with long papillae 1 arising at the base of rays 2;
    • Spicules with chitinoid axis doubled in their median part

     

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

    Species described from the Old World: Nepal, Buriatia (Russia), Russia, Japan, Mongolia.

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    Feeding:

    Food Sources and Feeding strategies for the genus Ohbayashinema

    Intestinal parasities of small lagomorph rodents, including pikas (Ochotona)

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    Biology and Ecology:

     

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    Life Cycle:

    Lif cycle direct. Infections were established in pikas by oral ingestion of infective ensheathed L3 larvae collected from pika feces.

    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:

    Durette-Desset, M-C. 1974. Ohbayashinema ochotonae n. gen., n. sp. (Nematoda, Trichostrongyloidea), parasite d’un Lagomorphe du Nepal; interet phyletique de ce genre. Bulletin du Museum national d’Histoire naturelle 216 (Zoologie 144):415-418.

     Durette-Desset, M-C,. Ganzorig, S., Audebert, F., Kamiya, M. 2000. A new species of the genus Ohbayashinema (Nematoda, Trichostrongylina, Heligmosomoidea), parasite of Ochotona daurica (Ochotonidae, Lagomorpha) from Buriatia. Zoosystema, 2000, 22 (4), pp.667-676.
     
    Copyright © 1999 by Howard Ferris.
    Revised: April 11, 2026.