Helgenema

  

Contents

  

Rev: 08/24/2026

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

        

 Chromadorea

Chromadoria

         Rhabditida

Rhabditina

             Infraorder Rhabditomorpha
                  Heligmosomoidea
       Heligmonellidae
                    Nippostrongylinae
                  Helgenema Smales, 2020
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    •  Type speciesof genus: Helgenema keablei Smales. 2020

        Synonyms:
         

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    Morphology and Anatomy:

     

     

     

    Females:

      
     

    Males:  

    • Bursal pattern 2-3,  dorsal ray divided within distal half.
    • Spicule to body length ratio 7.2%.

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

    Type species described from small intestine of Paramelomys levipes (Muridae) from Papua New Guinea

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    Feeding:

    Food Sources and Feeding strategies for the genus Helgenema

    Gastro-intestinal parasites of murid rodents. Species reported from Paramelomys levipes, Chirurumys forbesi, C. lamia (Durette-Desset and Digiani, 2023).

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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:

    Durette-Desset, M-C. Digiani, M.C., 2023. Revision of the genera of Heligmonellidae (Nematoda, Heligmosomoidea), parasitic in Muridae from New Guinea. Parasite 2023 Dec 20;30:63. doi: 10.1051/parasite/2023058

    Smales, L.. 2020. Gastrointestinal nematodes of Paramelomys levipes and P. mollis (Rodentia: Muridae) from Papua, Indonesia and Papua New Guinea with the descriptions of three new genera and nine new species (Nematoda). Zootaxa 4861:544-572.

     

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    Revised by Howard Ferris.
    Revised: August 24, 2026.