0.58 mm; a = 22; b = 4.8; c = ?; V = 95
Body cylindroid except extremities. Annules without anastomosis
except in rare instances. Sublateral labial lobes conspicuous.
Perioral disc rounded. First cephalic annule indented, not circular,
somewhat cupped; second slightly wider, definantly set off by constriction.
Remaining body annules rounded, slightly retrorse, numbering about 112.
Spear massive, 55u long, its muscles somewhat sclerotized in in
basal third. Median bulb massive, tapering to a broad isthmus.
A minute cardia present. Excretory pore and hemizonid not observed.
Vulva usually on 6th or 7th annule from terminus. Ovary outstretched,
oocytes in single file except for a short region of multiplication.
Anus not definantly seen.
Habitat: Numerous females and young from Medicine Butte, S. Dakota
and one female from Fairmont, Nebraska.
