Description (from Thorne, 1974):
Female body straight when relaxed, young specimens being much narrower than adults. Lip region set off by slight narrowing with low rounded lips and obscure papillae. Amphid aperture oval, 1/3 width of head. Spear 16 um long of usual complicated structure as illustrated. Protrudor muscles a conspicuous feature. Esophagus almost completely hidden by dense granular body contents, the basal bulb being elongate conoid. Cardia not seen. Vulva transverse. Ovaries reflexed. Female tail convex-conoid to rounded terminus.
Male much more slender than female, cylindroid throughout most of its length. Posterior portion of body slightly arcuate. Spicula tapering, arcuate, probably resting on a thin trough-like gubernaculum. Two pore-like ventromedian supplements, their positions indicated by depressed points in the thick cuticle. Males almost as numerous as females.
Habitat: Native prairie sod on summit of Medicine Butte and in pasture plots Cottonwood Experiment Station, South Dakota.
DNA Sequences Obtained
|9 Mile 1-28 LP2-03||9-Mile Prairie, First Survey|