Prionchulus

 

Contents

 

Rev 12/09/2022

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

Enoplea
        Mononchida

Mononchidae   

Prionchulus (Cobb, 1916) Wu and Hoeppli, 1929

 

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Morphology and Anatomy:

 

 

Prionchulus head: offset lip region, prominent labial papillae, anteriorly directed dorsal tooth and subventral denticles.

 




Prionchulus esophageal region



Prionchulus tail region: no spinneret, poorly developed caudal glands


Prionchulus female: diovarial, amphidelphic, sclerotized pieces surrounding vulva
 
Photomicrographs by Howard Ferris  





Males:
 

  • Rare.
  • Stout spicules,
  • Ventral row of supplements anterior to cloaca.

Female:  

  • Large nematodes, 1-3 mm length.
  • Lip region slightly offset, prominent labial papillae.
  • Large buccal cavity with dorsal tooth pointing forward, located in anterior region. 
  • Two rows of subventral denticles opposite dorsal tooth.
  • Diovarial, amphidelphic.
  • Spinneret absent..


Body size range for the species of this genus in the database - Click:
Photomicrographs and comparative schematic drawings of buccal cavities of genera of Mononchida
   
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Distribution:

Cosmopolitan distribution, with Europe being particularly rich in species (Andr�ssy, 2006). As of 2018, 30 species have been described  worldwide (Kim et al., 2018). Most of the species in the genus have been collected from moss, leaf litter, and forest soil (van Rensburg, 2021).

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Feeding:

Predaceous on other organisms, especially nematodes.

Prionchulus sp. feeding on nematode prey
From moss, La Mancha, Veracruz, México;  photographs by Ignacio Cid del Prado
      
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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:

Prionchulus spp. and other mononchids play important roles in bioregulation of litter and soil communities (Dipchikova et al., 2019).

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Management:

 

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References:

Andr�ssy, I. 1985. �On the genera Mononchus Bastian, 1865 and Prionchulus (Cobb, 1916) Wu and Hoeppli, 1929 (Nematoda: Mononchidae)�, Opuscula Zoologica 21:9-22

Dipchikova, S., Mladenov, A., Peneva, V. and Lazarova, S. 2019. Predatory nematodes of the order Mononchida from riparian habitats in Bulgaria. ARPHA Conference Abstracts 2:e46458, doi: 10.3897/ aca.2.e46458.

Jairajpuri, M.S. and Khan, W.U. 1982. Predatory Nematodes (Mononchida). Associated Publishing, New Delhi 131p.

Kim, J., Kim, T., Ryu, H. N. and Park, J. -K. 2018. Prionchulus oleksandri (Nematoda: Mononchida) from Korea. Animal Systematics, Evolution and Diversity 34:194-198.

Van Rensburg, C.J., Fourie, H., Ashrafi, F., Rashidifard, M. 2021. Description of Prionchulus jonkershoekensis n. sp. (Nematoda: Mononchida), a new predatory species from South Africa. J. Nematology 53: | DOI: 10.21307/jofnem-2021-039

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Copyright © 1999 by Howard Ferris.
Revised: December 09, 2022.