Length, female: 0.66-0.72 mm long. T.
annulatus = (T. martini)
Female: Body ventrally arcuate; cuticle
moderately thick, distinctly annulated by deep striae
1.7-1.9 µm apart near midbody; no longitudinal striae.
Lateral
fields 0.30-0.35 times body width, with 4 incisures making 3 almost
equally wide longitudinal bands; outer incisures crenate; outer bands
irregularly areolated in places.
Deirids
absent.
Phasmids
distinct, pore-like, 13-17 µm or 7-8 annules
behind anus, anterior to middle of tail.
Lip region rounded, slightly marked off from body by increased
width, with 3 transverse striae (occasionally 2); 7.0-7.5 µm wide and 4 µm
high; framework lightly sclerotized with outer margins extending 2 to 3 annules
into body.
Stylet is 17-18 µm long, in two almost equal parts, anterior
conical part solid, needle-like in distal half, posterior part with distinct,
rounded basal knobs, about 3 µm across and with flattened to convex anterior
surfaces.
Orifice of dorsal esophageal gland 1.5-2 µm from stylet base,
rather obscure.
Median esophageal bulb oval, occupying 6 to 7 body annules, with
oval valve near center.
Basal esophageal bulb sac-like, with a large
cardia
pushing into
its base slightly ventrally; nucleus of dorsal gland conspicuous, in posterior
half of bulb; nuclei of subventral glands inconspicuous, about middle of bulb.
Nerve ring at middle of
isthmus.
Excretory
pore 52-59 annules behind lip region, opposite base of
isthmus.
Hemizonid
prominent, 2 body annules long, just in front of excretory pore.
Intestine with fasciculi (serpentine canals) and scattered
granules.
Rectum shorter than anal body width, partially overlapped by
intestine; anus distinct.
Tail elongate sub-cylindrical, 3.1-3.6 times anal body width
long, almost straight to slightly arcuate ventrally, with 18-22 annules
ventrally and a broadly round, unstriated terminus.
Vulva transverse; vagina straight, extending half-way into
body.
Spermatheca
absent.
Ovaries paired, outstretched, opposed, with a single row of
oocytes.
Male: absent. Not found among 80,000 specimens examined by
Fielding (1956).
[Ref: CIH Descriptions of Plant-parasitic Nematodes, Set 6, No.
85 (1976)]
|