Quinisulcius acutus
(Allen, 1955)
Syn.: Tylenchorhynchus acutus Allen, 1955
Photo Gallery- Konza Prairie
Photo Gallery- Mead, NE meadow

0.75 mm; a =  35; b = 5.5; c = 23; V = 58
Body definitely arcuate when relaxed.  Five lines in lateral field.  Lip region with 5 or 6 annules, set off by deep constriction.  Annules adjacent to lip region much narrower than opposite spear base.  Spear 15u long with massive cupped knobs, the muscles attached to labial arches and a sclerotized band about base of head.  Eslpagus tapering to a narrow tube where it attaches to the median bulb.  Basal bulb somewhat longer than neck width with usually one huge gland nucleus visible.  Cardia somewhat discoid, usually difficult to see because of pressure from intestine.  Hemizonid 2 annules anterior to pore.  Deirids about opposite pore.  Intestine packed with large dark granules, often obscuring details of reproductive system.  Ovaries outstretched.  Spermatheca or spermagonium not observed.  Eggs about 3 times as long as body width.  Tails with 15 to 20 ventral annules.  Phasmids somewhat variable in position.

Habitat:  Tylenchorhynchus acutus is widely distributed throughout the Great Plains, being the most common species of the genus.
(Description- Thorne & Malek, 1968)

DNA Sequences Obtained
Specimen: Collected:
Konza VIAA-74 Konza Prairie, First survey