Tylopharynx

 

Contents

 

Rev: 11/03/2021

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

Chromadorea
  Diplogastria
   Diplogastrida
    Diplogastroidea
Tylopharyngidae
        Tylopharynx De Man, 1876
  •  
  •  Andrassy (1984) erected the family Tylopharyngidae to accomodae the single genus, Tylopharynx. That genus has often been seen as indicative of the origins and relationships of Tylenchida  because of the apparent similarity of its stoma armature to the tylenchid stylet (Andrassy, 1984; Wu et al., 2001). Later studies by De Ley et al. (1993) suggested that there is no strong relationship between the stoma of Tylopharynx and the stylet of the Tylenchida.

        Synonyms:
         

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    Morphology and Anatomy:

    Females:

      
     

    Drawings of the head region of Tylopharynx (from Wu et al., 2001)
    Males:  

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

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    Feeding:

    Tylopharynx foetida feeds on fungal hyphae by ripping apart the cell wall with stegostomatal teeth. The teeth are pushed out of the buccal cavity by elongation of the pharynx during each pumping cycle (Forst von Lieven, 2002).

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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:

    Andassy, I. (2005) Free-living Nematodes of Hungary, Part I. (Nematoda errantia). Hungarian Natural History Museum 518p.

    De Ley, P., A. T. De Grisse, M. C. Van de Velde, and A. Coomans. 1993. Ultrastructure of the stoma in Tylopharynx. Mededelingen Fakulteit Landbouwwetenschappen Universiteit Gent 58:763�777.

    De Man, J. G., 1876. Onderzoekingen over vrij in de aarde levende Nematoden. Tijdschr. ned. dierk. Ver., 2:78�196.

    Forst von Lieven, A. (2002). Functional morphology, origin and phylogenetic implications of the feeding mechanism of Tylopharynx foetida (Nematoda: Diplogastrina). Russian Journal of Nematology 10:11-23.

    Wu, J., P. De Ley, Y. Liang. 2001 Description of a New Species of the Genus Tylopharynx (Nemata: Diplogasteroidea), T. clariamphida sp. n., with a Redescription of T. foetida (Butschli, 1874) Goffart, 1930. J. Nematology 33:83-90.

     
    Copyright © 1999 by Howard Ferris.
    Revised: November 03, 2021.