Subfamily TYLENCHINAE

                                   Rev 05/05/08

Classification:

      Tylenchida
       Tylenchina
        Tylenchoidea
         Tylenchidae
          Tylenchinae (Orley, 1880)
    Synonyms:
      Dactylotylenchinae (Wu, 1969)
      Duosulciinae (Siddiqi, 1979)

Morphology and Anatomy:

      Head not or slightly offset, amphidial openings variously shaped (with two
      major types, a longitudinal and a transverse slit), usually no distinct
      oral disc.  

      Stylet small to very small, usually with knobs.  

      Female genital tract short with only three or four cells in each of the four rows
      of the crustaformeria part of the uterus, spermatheca offset or not. 

      Tail elongated, top variously formed.

      This subfamily contains the Tylenchidae that are most similar to the type 
      genus Tylenchus.  

      The genus Filenchus is not always easy to distinguish 
      from Tylenchus, and several species considered to be Tylenchus by Andrássy
      (1979) are considered by  Raski & Geraert (1987) to belong to Filenchus.

      Generally the species of Filenchus are not well known.  

      Our knowledge about some of these genera is rather restricted.

      [Ref: Geraert & Raski, Rev. Nematol. 10(2):143-161 (1987).]

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