- Cuticle finely annulated.
- Lateral alae with single wing; ending at level of phasmids
in female and at base of terminal tail mucro in male.
- Labial region crown-shaped with six well-developed,
leaflike, lips with a biradial symmetry; lips separated by
narrow and internally sclerotised U-shaped clefts lacking
guarding pieces; each lip supported by a strong radial ridge;
lateral lips half as wide as subdorsal and subventral lips.
- Lip region with six labial and four cephalic papillae;
amphidial opening more or less slit-like.
- Labial and cephalic probolae absent.
- Stoma strongly anisomorphic. Cheilostom barrel-shaped;
cheilorhabdia strongly sclerotised, hook-shaped in median
optical section. Gymnostom short conoid, as wide as cheilostom;
gymnorhabdia strongly sclerotised, plate-like in median optical
section. Stegostom funnel-shaped, subdivided into four sets of
rhabdia. Dorsal prostegorhabdion strongly developed, extending
as a ridge inside stegostom cavity, tooth-shaped in appearance.
- Pharynx cephaloboid. Basal pharyngeal bulb with strongly
developed grinder.
- Phasmids located at 70-90% of taillength.
- Tail conoid, curved ventrad; tail terminus rounded with a
ventral, dorsally bent, hook-like mucro.
|
|
Female
Male
-
Reproductive system monorchic.
-
Spicules paired and symmetrical.
Gubernaculum platelike, cornua crurum absent.
-
Genital papillae: two pairs of
subventral precloacal, a single midventral papilla on anterior
cloacal lip; a ventrosublateral pair at level of cloaca; three pairs
anterior to phasmid (one pair inside lateral alae, one
ventrosublateral pair at mid-tail and one dorsosublateral pair
somewhat posteriorly); one dorsosublateral and two subventral pairs
near tail terminus
Ref: Holovachov and Bostrom, 2006 |