Verutus

 

Contents

 

Rev 09/14/2023

  Classification Hosts
Morphology and Anatomy Life Cycle
Return to Verutus Menu Economic Importance Damage
Distribution Management
Return to Heteroderidae Menu Feeding  References
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Classification:

      Tylenchida
       Tylenchina
        Tylenchoidea
         Heteroderidae
          Verutinae

           Verutus Esser, 1981

Type species of the genus: Verutus volvingentis Esser, 1981
   

Synonyms:
      None.

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Morphology and Anatomy:

Cystoid nematodes in which the body wall of the female does not harden into a cyst.

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Females: No cyst stage.  Body saccate, sausage-shaped, or kidney-shaped. 

Cuticle thick, annulated over total body length; D-layer absent; multiple B-layer present; subcrystalline layer present [For information on ultrastructure of the cuticle and definition of its layers, see Shepherd, Clark & Dart (1972) and Baldwin (1983)].  

Vulva submedian, large, with protruberant vulva lips.  

No phasmids.  

Remnant of tail very short to absent.

Eggs not retained in body, but deposited individually, without gelatinous matrix.  

Males: Body not twisted. 

Stylet under 30 �m long.

Lateral field with four lines.

Spicules strong, slightly curved.  

No phasmids.  

Tail short.  

Second-stage juveniles: Lateral field with four lines.

Esophageal glands filling body cavity.  

Tail pointed, with long, hyaline, terminal part. 

Phasmids punctiform, small, devoid of lens-like structure.  

[Luc, Maggenti & Fortuner (1988).]


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

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Distribution:

 

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Economic Importance:

 

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Feeding:

Nurse cell system is a syncytium.      

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Hosts:

 
For an extensive host range list for this genus, click
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Life Cycle:

For Ecophysiological Parameters for this genus, click 
 
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Damage:

 

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Management:

 

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References:

Luc, Maggenti & Fortuner, Rev. Nematol. 11:159-176 (1988).]

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Copyright © 1999 by Howard Ferris.
Revised: September 14, 2023.