Cervoannulatus		Contents		Rev 12/16/2024
		Classification		Hosts
		Morphology and Anatomy		Life Cycle
Return to Cervoannulatus Menu		Economic Importance		Damage
		Distribution		Management
Return to Tylenchidae Menu		Feeding		References
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Classification:

Chromadorea
       Rhabditida
       Tylenchina
        Tylenchoidea
         Tylenchidae  
          Tylenchinae

           Cervoannulatus Bajaj, 1998
  

  Synonyms:
      None.

Type and only species: Cervoannulatus graminis Bajaj, 1998.

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Morphology and Anatomy:

• Cuticle coarsely striated in neck region, otherwise smooth.
• Head high and rounded.
• Stylet short with very small knobs.
• Median bulb with valve.
• Females monodelphic, prodelphic with short postvulval sac; vulva at 70-73%
• Males with cephalated spicules, trough-shaped gubercancilum  and adcloacal caudal alae.
• Tail tip rounded.

Note: Andrassy (2007) questioned the validity of the genus and, based on the non-filifom tail and very small stylet knods, suggested that it was clos to Thada Thorne, 1941 or Neothada Khan, 1973. Geraert (2008) points out that it also resembles Polenchus.

Ref: Andrassy (2007); Geraert (2008)

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Distribution:

Type species described from soil in India.

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Economic Importance:

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Feeding:

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Hosts:

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Life Cycle:

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Damage:

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Management:

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References:

Andrassy, I. 2007. Free-living nematodes of Hungary (Nematoda, Errantia), II. Hungarian Natural History Museum, Budapest, Hungary. 496 pp.

Geraert, E. 2008. The Tylenchidae of the world: identification of the family Tylenchidae (Nematoda). Gent, Academia Press: 540 pp

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Copyright  � 1999 by Howard Ferris.
Revised: December 16, 2024.