Prismatolaimus

  

Contents

  

Rev: 08/03/2020

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

Classification:

Enoplea
   Enoplia
        Triplonchida
            Tobrilina
                Prismatoloidea
                    Prismatolaimidae

Prismatolaimus De Man, 1880

 

    Synonyms:
Back to Top

Morphology and Anatomy:

  • Cuticle annulated; with submedian setae along body.

  • Head with six papilliform inner labial sensilla, six articulate, setiform outer labial sensilla and four nonarticulate setiform cephalic sensilla.

  •  Amphids with oval fovea and transverse slit-like aperture.

  •  Buccal cavity composed of flattened, hexaradiate cheilostome with weakly cuticularized walls and bipartite, triradiate pharyngostome consisting of a wide, barrel-shaped part with well sclerotized walls and a narrower, funnel- or bowl-shaped, less sclerotized part with a small tooth or with denticles.

  • Esophagus cylindrical, anteriorly surrounding buccal cavity up to base of barrel-shaped portion, slightly widening posteriorly.

  •  Esophago-intestinal junction with well-developed cardia.

  • Tail filiform, usually ending with a hook-like extension or mucron

   
   



Source:  http://www.niaes.affrc.go.jp/inventory/nemapics/Prismatolaimus intermedius.jpg
Females:
  • Monovarial, antepudendal or diovarial, with short oviduct, wide uterus and short vagina.
Males:  
  •  Diorchic; vas deferens glandular, flanked by single ejaculatory gland at each side.
  • Spicules ventrally curved, with complex musculature.
  • Gubernaculum with two sclerotized pieces behind spicules.
  • Supplements numerous, confined to posterior body region or extending to neck
Ref: Coomans and Raski, 1988

Body size range for the species of this genus in the database - Click:
Back to Top

Distribution:

Occur in moist environments, soil and moss.

Back to Top

Feeding:

Classified (somewhat tentatively) as bacterivores by Yeates et al. (1993). Rapid body movements probably result in resuspension of sedimented food sources.

Back to Top

Biology and Ecology:

Back to Top

Life Cycle:

 
For Ecophysiological Parameters for this genus, click 
Back to Top

Ecosystem Functions and Services:

 

Back to Top

Management:

 
Back to Top

References:

Coomans, A.V. and Raski, D.J. 1988. Two New Species of Prismatolaimus de Man, 1880 (Nemata: Prismatolaimidae) in Southern Chile. J. Nematology 20: 288-303.

Yeates, G.W., T. Bongers, R. G. M. De Goede, D. W. Freckman, and S. S. Georgieva. 1993. Feeding habits in soil nematode families and genera—An outline for soil ecologists. Journal of Nematology 25:315-331

Copyright 1999 by Howard Ferris.
Revised: August 03, 2020.