Genus Leptolaimus
de Man, 1876
Photo Gallery- Konza Prairie

Definition:  Leptolaiminae.  Cuticle transversely striated with an occasional bristle here and there.  Head offset, without lips, papillae or setae.  Lateral fields narrow.  Amphids circular, situated a short distance behind head  constriction.  Stoma in form of a narrow, straight-sided tube lined with delicate rods.  Oesophagus almost cylindrical in shape, narrowing to an isthmus and then expanding to terminal bulb.  Apparently no oesophageal-intestinal valve cells present.  Rectum short.  Tail in both sexes tapering to terminus which is in form of a swollen knob carrying opening of caudal glands.  Vulva slightly pre-equatorial; gonads paired, opposed and reflexed.  Spicules slightly arcuate, knobbed anteriorly, shafts tapering to sharp points.  Gubernaculum about 1/2 as long as spicules, bifurcate for a short distance under points of spicules.  A row of 22-25 mid-ventral pre-anal supplements present, the 4 just in front of anus being tubular ducts of gland cells, the remaining supplements, which extend forward to the region of the terminal bulb of the oesophagus, being boss-like and somewhat ovoid when seen in face view.  On the male tail are 4 pairs of subventral setae.

Type species: Leptolaimus papilliger de Man, 1876

-Goodey, 1963