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Female:
- Body of heat-relaxed specimens almost straight; attenuated at both
ends,
- Cuticle annulated, annuli range between 0.75 and 2 um.
- Lip region indixtinct, not offset from body contour; probably with
two or three exceedingly fine, and almost invisible, annules.
- Cephalic sensilla in three circles: six small inner labial papillae,
six outer labial papillae and four cephalic papillae.
- Amphids posterior to lip region; fovea unispiral to circular with
posteriorly broken contour (cryptospiral), 4-6 um in diam.
- Lateral fields not differentiated, with double sublateral row
of cuticular pores 8-10 um apart on each side.
- Buccal cavity rudimentary, cheilostom weakly developed, gymnostom a
short tube with thickened cuticular lining and stegostom as
cuticularized tube surrounded by pharyngeal tissue, developed until
posterior of median bulb, 38-42 μm long.
- Stoma without teeth or denticles.
- Pharynx muscular, with narrow procorpus, fusiform
metacorpus,narrower isthmus surrounded by nerve ring and a distinct
spherical muscular bipartite basal bulb, 16-17 um long, 15-17 um wide,
with unstriated valve plates
- Pharyngeal glands and their orifices indistinct. Cardia distinct,
multicellular.
- Intestine gradually widens, three-quarter body width at the
middle, thick-walled, its cells without granules.
- Ddidelphic-amphidelphic; ovaries reflexed antidromously almost
reaching vulva.
- Ovary with a single row of gradually enlarging oocytes behind
germinal zone.
- Vulva slit-like, its lips not thickened and not protruding. Vagina
not muscular, surrounded by weakly developed constrictor muscles,
35.2-40.2% of corresponding body width long.
- Rectum ca one anal body diam. long.
- Tail elongate-conoid, anterior 33% conoid and posterior 66%
narrower, with a short spinneret at the terminus.
Male:
- Similar to female but more ventrally curved when heat relaxed
- Diorchic, anterior testis well developed and outstretched; posterior
testis outstretched but about 50% of length of anterior testis,.
- Both testes join in a seminal vesicle joining the vas
deferens.
- Faint copulatory muscles at about three body widths distance
anterior to cloacal opening.
- Cloacal lips raised.
- Four bluntly conical precloacal supplements present: three
equidistant, closely spaced, b
- Spicules paired, arcuate, about 1.3 times as long as anal body diam.
or slightly shorter than half tail length. Proximal end of spicules
slightly cephalated.
- Gubernaculum two-fifths as long as the spicules, lying parallel to
distal portion of spicules.
- Tail arcuate-conoid. The caudal glands pack in a tandem series in
the anterior half of the tail.
- Spinneret short. Caudal papilla absent.
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