|
Description (from Thorne, 1974)
Body robust, slightly arcuate. Lip region
1/4 width of neck base. Cuticle near head greatly thickened. Spear
22 um long, with aperture occupying slightly more than half its length.
Esophagus
enlarged very
gradually from near middle. Cardiac disc prominent,
cardia
slightly
concave conoid, completely surrounded by intestinal cells. Vulva
with massive sclerotized labia. Ovaries reflexed about halfway to
vulva. Prerectum length
about twice body width. Tail
dorsally convex conoid to blunt rounded terminus. Cuticle in 2 thick
layers with exceedingly coarse radial striae. Only 1 male collected,
similar to those of other species of the genus. Supplements 8, mammiform,
irregularly spaced.
Aporcelaimellus porcus is distinctive because
of the intestinal cells surrounding the cardia, and strong radial striae
of the dorsally arcuate rounded tails.
Habitat: Cultivated field, Highmore Experiment
Station, South Dakota.