Description (from Thorne, 1974)
Body cylindroid except at extremities, straight to slightly arcuate when relaxed. Lateral fields 1/5 - 1/7 body width. Lip region set off by slight depression, the lips somewhat variable in prominence with the usual number of easily seen papillae. Spear 13-15 um long, with aperture 1/3 to 2/5 its length. Guiding ring single. Esophagus enlarged near middle by rather abrupt expansion. Hemizonid just anterior to nerve ring. Cardia elongate conoid, variable in length from 1/2 to more than one body width. Microvilli present but frequently difficult to see. Intestinal granules fine, dark brown. Vulva transverse, ovaries reflexed about halfway to vulva. Spermatheca and sperms absent. Rectum 1 1/2 - 2 times anal body width. Prerectum 2-3 times body width. Tail form variable.
A single male was collected from prairie sod near Fargo, North Dakota. Vas deferens filled with sperms but none found in associated females.
Habitat: A frequent species from practically all types of habitat throughout the Northern Great Plains.
DNA Sequences Obtained
|KonzaII BD-23||Konza Prairie, First survey|