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Female:
- Cuticle distictly annulated with spiny region anteriorly, annuli
less marked in the rest of body.
- Spines (cuticular projections from second cephalic annule to
level of base of esophageal isthmus.
- Lateral alae commence at level of the isthmus, within the spiny
region and extending to about 3 vbw posterior to the vulva.
- Head with bearing eight rounded paired papillae; set-off from
body by a deep groove,
- Amphids lateral, pore-like.
- Mouth circular. Stoma about four head-lengths long, surrounded
by an esophageal collar. Lumen of anterior region of stoma
triangular, with a ridge in each side.
- Esophagus with a muscular clavate procorpus, isthmus and rounded
basal bulb with well-developed valve plate
- Nerve ring encircling procorpus at about its midpoint. Excretory
pore situated at about half of body width posterior to basal bulb.
- Monodelphic-prodelphic, vulva near midbody,
- Ovary reflexed behind the excretory pore
- Eggs ovoid, shell with eight rough, longitudinal, ridges.
- Tail conical, subulate, ending in a sharp point.
Ref: Morffe and Garcia, 2013
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