Thorne, 1974
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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
| Specimen: | Collected: |
| 9 Mile 1-28 LP2-03 | 9-Mile Prairie, First Survey |
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