Diphtherophora lata
Thorne, 1974
Measurements (from Thorne, 1974):
L = 0.5 mm; a = 13-18; b = 4.7; c = 40; V = 55
L = 0.6 mm; a = 20; b = 4.6; c = 39; T = 44
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