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Length, female: 1.38 mm average; length, male: 1.04-1.19 mm.
Female:
-
:Body cylindrical, straight to slightly arcuate ventrally when
relaxed by gradual heating.
-
Cuticle
annules
distinct, about 2 µm wide; subcuticular annules about 1 µm wide.
-
Lip region hemispherical, set-off from body by a constriction,
with a terminal disc and usually 4 distinct annules; sometimes with 3 annules on
one side and 4 on the other; as many as 6 annules may be present.
Longitudinal striae on
lip annules variable in number, on basal annule 7 to 25 striae may be seen in
face views.
-
Labial framework hexaradiate, heavily sclerotized; lateral
sectors smaller than submeridians.
-
Lateral
fields reduced and variable, represented by interruption of body annules or
by a single incisure towards the extremities or along the entire body length; 2
to 3 incomplete incisures are sometimes seen, especially in badly fixed
specimens.
-
Phasmids as
enlarged scutella, about 5 µm in diameter, anterior one at 24 to 52% and
posterior one at 58 to 89% of body length from anterior end; anterior one may be
on right side and posterior one on the left, or vice versa.
-
Excretory pore
distinct, usually opposite the median esophageal bulb, but may be anterior or
posterior to it, yet always anterior to the
hemizonid
which is about 2 body annules long.
-
Stylet well developed, about 38 to 49 µm long, composed of two
almost equal parts; basal knobs tulip-shaped, with 2 or more anterior
projections or "teeth."
-
Orifice of dorsal esophageal gland behind spear base.
-
Esophagus typical of the genus;.
-
Median bulb
rounded, very muscular and with a distinct valve.
-
Three uni-nucleate
esophageal glands
extending dorsally or dorso-ventrally over the intestine, dorsal gland and its
nucleus anteriormost;
isthmus enveloped by nerve ring, connected to intestine
through an indistinct junction.
-
Intestine with refractive spherical granules, overlaps
rectum.
-
Vulva a transverse slit;
epiptygma
usually single, anterior or posterior; vagina at right angles to body
axis.
-
Gonads paired, symmetrical, opposed, may lie on right or left
side of intestine.
-
Spermathecae
spherical, axial, with sperms.
-
Ovaries with oocytes in tandem.
-
Tail short, rounded, usually hemispherical and with 7 to 15
annules.
Male:
-
Common.
-
Body ventrally arcuate.
-
Lip region rounded, higher than in female, with 3 to 5 (usually
4) annules.
-
Excretory
pore near metacorpus, 8-23 annules in front of
hemizonid.
-
Stylet, esophagus,
lateral
field, and phasmids
as in female.
-
Testis
single, anteriorly outstretched.
-
Spicules
ventrally arcuate, slightly cephalated, with large flanges in distal
half.
-
Gubernaculum
trough-like, protrusible through
cloaca, with titillae on distal
end.
-
Bursa large, with crenate margins, originating near level of
retracted spicule head and enclosing tail, which is
conoid.
[Ref: CIH Descriptions of Plant-parasitic Nematodes, Set 3, No. 33 (1974)]
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:
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