Paraphelenchus intermedius
Thorne, 1968

0.7-1.0 mm; a = 24-28; b = 4.3-5.6; c = 23-26; V = 76

     Body tapering both ways from near middle. Lateral field variable, often appearing as a plain band or with 4 or 6 minute incisures 1/4 body width.  Cheilorhabdions refractive, remainder of cepahlic framework moderately sclerotized.  Spear 15u-19u long without basal knobs.  Excretory pore opposite anterior end of basal bulb.  Hemizonid immediately posterior. Deirids usually visible, about opposite nerve ring.  Basal bulb elongate with 3 and occasionally 5 nuclei visible. Cardia extending into base of bulb and anterior intestine.  Intestinal cells adjacent to cardia without granules.  Vulva with elevated labia. Ovaryoutstretched, sometimes reaching to nerve ring in old females. Spermatheca or spermagonium not seen.  Posterior uterine branch collapsed.  Taildorsally convex conoid, ending  in a blunt, mucronate terminus. Phasmids subterminal.  Males unknown.
     Most closely related to Paraphelenchus acontioides  Taylor and Pillai which has 8 incisures instead of 6 and  P. pseudoparietinus  Micol. in which the lip region is set off by slight constriction.
     Habitat:  Generally distributed in both virgin and cultivated soil throughtout South Dakota.  One collection from cultivated field near Minden, Nebraska.