Genus Duotylenchus
Duosulciinae.
Body ventrally arcuate upon relaxation, in type-species 0.39-0.65 mm
long. Annules fine, continuous, not sculptured. Lateral field with single
ridge. Cephalic region continuous, smooth, anteriorly truncate, framework
weakly sclerotized. Amphidial aperture longitudinal slit, said to be sublabial
in position. Stylet knobs rounded, slightly asymmetrical. Postcorpus a
non-muscular, spindle-shaped swelling lacking valve plates. Terminal bulb
elongated-saccate. Cardia distinct. Vulva closed. Vagina at right angle
to body axis. Postvulval uterine sac present, about half body width long.
Spermatheca round, with small round sperm. Tail elongate-filiform. Bursa
adanal, with convex, crenate margins. Spicules tylenchoid; gubernaculum
fixed.
Type-species: Duotylenchus bilineatus Saha & Khan, 1982
From: Tylenchida. Siddiqi, Mohammad Rafiq. 1986