Tylenchinae (Orley, 1880)
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, to variously formed.
- This subfamily contains the
Tylenchidae that are most similar to the type genus
- The genus Filenchus is not always easy to distinguish from
Tylenchus, and several species considered to be Tylenchus by Andrássy (1979)
were considered by Raski & Geraert (1987) to belong to Filenchus.
- Generally the species of Filenchus are not well known
but F. misellus has been demonstrated to
be a fungivore.
- Our knowledge about some of these genera is rather restricted.
[Ref: Geraert & Raski, Rev. Nematol. 10(2):143-161 (1987).]
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