Tyleptus projectus
Thorne, 1939
Photo Gallery- 9-Mile Prairie
Photo Gallery- Forensic Nematology

Female: 1.0 mm; a = 28; b = 4.5; c = 60-80; V = 36
Body rather cylindroid, tapering in the anterior third of the neck until the lip region is two-fifths as wide as the neck base.  Cuticle without visible transverse striae but with innumerable refractive radial elements.  Lateral cords one-third as wide as body with two lines of coarse ducts reaching to their large pores.  Amphid almost as wide as head.  Lip region set off by depression.  Six conspicuous projecting liplets around the oral opening.  Vestible muscular without cuticularized elements.  Guiding ring simple.  Spear dorylaimoid but somewhat angular in contour, the aperture occupying only about one-fifth of its length.  Spear extensions well cuticularized, surrounded by a muscular bundle.  Esophagus a slender tube until it expands to form the pyriform basal bulb.  This bulb is about as long as the neck width and its lumen is divided into two sections, the shorter, posterior one apparently forming a narrow, triquetrous, valvular chamber.  Three esophageal gland nuclei are usually visible.  Cardia cylindroid, often forming a short isthmus between the esophagus and intestine.  Intestinal cells obscure, containing fine scattered, light brown grannules.  Prerectum length about twice body width. Vulva a transverse slit half as wide as the body.  Anterior female sexual branch a short rudimentary pouch;  posterior branch normal., the ovary reflexed halfway back to vulva.  Eggs twice as long as body width.  Tail hemispheroid, the core imperfect, leaving an irregular chamber.  Males unknown and the many gravid females contained no sperms.
Habitat:  Moist soil, Arlington Farm and Broad Run, Virginia, U.S.A.
(Description- Thorne, 1939)

DNA Sequences Obtained
Specimen: Collected:
FenJV2-1b Jumbo Valley fen, Nebraska sandhills