08/03/2020
Tylenchida
Tylenchina
Tylenchoidea
Anguinidae
Anguininae
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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