Cuticle- weakly annulated, minute punctations; pores anteriorly and along
lateral fields. Cephalic sense organs- subdorsal and subventral lips
bear two setiform sensilla, lateral lips bear one setiform sensillum. Amphids-
postlabial, large, round (semi-spiral), 10-12 um posterior to base
of head. Excretory pore- minute opening (about 1 um in diameter).
Lateral field- coarsely punctated anteriorly, expanded cuticle posteriorly.
Vulva opening- transverse slit with numerous radially arranged cuticular
ridges. Anal aperture- transverse slit with long posterior lip and
post-anal depression. Phasmids- possibly analogous lateroventral
setiform papillae just posterior to anal aperture.
(Description from Boström, 1989)
