.
|
-
Body small-sized (less than 1 mm long),
distinctly striated.
-
Lateral fields with 4 distinct incisures.
-
Lip region low, flattened, with
moderate to indistinct annulation; framework hexaradiate, lightly
sclerotized. Stylet about 10 um long, with rounded knobs.
-
Median bulb
oval, valvate.
-
Sub-ventral esophageal glands forming a
pseudobulb at base of esophagus but the dorsal gland lobelike and
extends over intestine laterally
-
Amphids are longitudinal slits.
-
Deirids present near excretory pore.
-
Tail in both sexes elongate-conoid, straight
to arcuat
Female:
-
Prodelphic monodelphic. Vulva at 70-80% of
body length
-
Ovary outstretched; oocytes in one/two
rows.
-
Spermatheca
short, rounded, containing sperm.
-
Columned uterus with four rows of four cells.
-
Post-uterine sac
(PUS) present.
-
Mature females not
swollen.
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|
Males:
- Testis without
flexures.
- Spicules slender, arcuate, cephalated but not prominently
expanded anteriorly.
- Gubernaculum small, trough-shaped, fixed.
- Caudal alae
leptoderan, short, adanal.
- Sperm cells small, with little cytoplasm.
Ref: Tarjan, 1958; Siddiqi, 1980
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|
Fortuner and Maggenti, 1987. Rev. Nematol. 10(2):163-176.
Siddiqi, M.R. 1980. Two new nematode genera, Safianema (Anguinidae)
and Discotylenchus (Tylenchidae), with descriptions of three new
species. Proc. Helminthol. Soc. Wash. 47:85-94.
Tarjan, A.C. 1958. A new genus, Pseudhalenchus (Tylenchinae:
Nematoda), with descriptions of two new species. Proc. Helminth. Soc.
Washington 20:20-25.