Sauertylenchus maximus
(Allen, 1955) Siddiqi, 2000
Syn.: Tylenchorhynchus maximus Allen, 1955
Photo Gallery- Konza Prairie
Photo Gallery- Forensic Nematology
Species Comparisons- heads
Species Comparisons- tails

L = 1.0 mm; a = 28; b = 8.3; c = 20; V = 50

Body arcuate to spiral when relaxed.  Annules coarse, interrupted by broad lateral fields with crenate borders and 2 median incisures. Phasmids very conspicuous, near middle of tails.  Lip region set off by constriction,  bearing 5 or 6 annules. Spear 15u-18u long with relatively slender, backward sloping knobs. Excretory pore and hemizonid about opposite anterior end of basal bulb.  Ovaries 2, outstretched, with oocytes in single file.  Neither spermatheca nor spermagonium observed.  Intestine extending midway into tail with rectum attached to ventral side.  Female tail tapering slightly to rounded crenate terminus.  A single male was found too late to be included herein.  Since no sperms were observed in females it is doubtful if such occasional males are functional.

Habitat:  Native grass and cultivated fields  Hot Springs, Cottonwood and Milbank, South Dakota.
(Description- Thorne, 1968)

DNA Sequences Obtained
Specimen: Collected:
KonzaIV BC-148 Konza Prairie, First survey
KonzaI AA-81 Konza Prairie, First survey
KonzaI DD-33 Konza Prairie, First survey