Family HOPLOLAIMIDAE
 Classification:
            
Chomadorea
            
Chromadoria
             
Rhabditida
      
       Tylenchina
       
        Tylenchoidea 
         
                  Hoplolaimidae 
Filip'ev, 1934
   
         Synonyms:
      Nemonchidae 
Skarbilovich, 1959
               
Aphasmatylenchidae Sher, 1965
      Rotylenchulidae 
Husain & Khan, 1965
      Pararotylenchidae
Baldwin & Bell, 198
      
Interrotylenchidae Eroshenko, 1984
 Morphology and Anatomy:
  - Female vermiform to kidney-shaped.  
- Lip region higher than 0.5 the diameter of the basal lip annulus, with rounded or trapezoidal outline in
  
 lateral view.
-   Lateral field generally with four lines.  
  
-   Phasmids generally located anterior to anus, rarely on the tail 
  (except in the case of Scutellonema).  
  
- Tail two anal body diameters long or less, generally curved dorsally, sometimes
  
 hemispherical.
-   Deirids absent.  
  
- Stylet strong, 2.5-3 times longer than the diameter of the basal lip annulus.  
  
-   Esophageal glands overlapping the anterior intestine (exception: 
  Pararotylenchus).  
  
- Females with two genital branches, posterior branch may be reduced to post-uterine sac.  
  
- Columned uterus with three rows of four cells.  
- Eggs laid in a gelatinous matrix in Rotylenchulinae.  
- Males may show sexual dimorphism in some taxa with feeding apparatus non-functional.  
  
-   Caudal alae of male    
  leptoderan.  
  
-   Gubernaculum with titillae.  
  
- Obligate higher plant parasites with a migratory ecto-endoparasitic habit, sometimes semi-endo-sedentary parasites. 
  
[Ref: Fortuner, Rev. Nematol.  10(2):219-232 (1987), and H. Ferris.]
Three subfamilies are considered: 
Return to Hoplolaimidae
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