Female, 1.32 - 1.42 mm; a = 25-26; b = 4.7 - 5.3; c = 6 - 6.8; V
= 50 - 55
Male, 1.41 - 2.05 mm; a = 27 - 31; b = 5.3 - 5.6; c = 6.5 - 7.2
De Man (1884) gave 1.4 mm as the length in both sexes. Cuticle
rather thick, with transverse striations. Body tapering a little
in front and considerably in tail region. On killing by heat, body
nearly always curved ventrally. Head region offset by a very slight
narrowing of body with practically parallel sides. Anterior end almost
flat. 3 circlets of head papillae, 16 - 20 in all, some papillae apical,
others ventro-laterally directed. Amphids very inconspicuous, located
about halfway down head. Stoma simple, only recognizable by the hyaline
lining. A small pointed tooth present on dorsal side at a distance
about equal to width of head. Oesophagus extending forward into head
and blending imperceptibly with musculature surrounding stoma. Oesophagus
more or less cylindrical throughout; at junction with intestine 3 distinct,
bi-lobed gland cells present. One large egg at a time in uteri.
A club-shaped, uninucleate, ejaculatory gland cell present on either side
of terminal region os vas deferens. Spicules paired, simple, tapering
gently from head to tip and enclosed in a muscular sheath. A simple,
rather inconspicuous gubernaculum present. There is a mid-ventral
row of 13-17 papillae extending from just in front of anus to the head
region. They are a little more than 1 body-width apart. The
male tail also bears 1 or 2 fine lateral or dorso-lateral papillae.
Caudal glands and terminal duct present in both sexes.
(Description- Raski & Luc, 1987)
