Family ANGUINIDAE

		                                        Rev 2/91

Classification:

      Tylenchida
       Tylenchina
        Tylenchoidea
                 Anguinidae (Nicoll, 1935 [1926])

A family of  free-living (fungus feeders) as well as facultative and obligate parasites of higher plants, frequently parasites of the above ground parts of plants.

Morphology and Anatomy:

• Body slender, vermiform or somewhat swollen in mature females.
• Lateral field with either four or six or more lines. 
• Low, flattened anterior end, small delicate stylet; labial framework lightly sclerotized.
• Amphid apertures small, lateral slits. 
• Deirids and phasmids generally absent. 
• Female genital system with sixteen-celled tubular spermatheca, in line with genital tract; columned uterus with four rows of cells or it may
   be a multicelled structure. 
• Post-uterine sac length variable from very long to none at all. 
• Female tails conoid not elongated. 
• Male caudal alae short, leptoderan, sometimes long and peloderan (Sychnotylenchus). 
• Sperm cells with large amount of cytoplasm (exception: Pseudhalenchus).
• Family contains free-living (fungus feeders) as well as facultative and obligate higher plant parasites, normally parasites of the above ground parts.

      [Ref: Fortuner & Maggenti, Rev. Nematol. 10(2):163-176 (1987) and
      H. Ferris.]

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