Pratylenchus impar
Khan, E. and Singh, D.B. (1974)
5 ?? (Paratypes):  L = 0.45 mm (0.42-0.47); a = 24.0 (22.8-25.2); b = 4.4 (3.6-4.8); c = 18.0 (11.5-29.0); V = 66 (66-72); Spear = 15 u (15-17).  Female (Holotype):  L = 0.44 mm; a = 24.4; b = 3.6; c = 20.0; V = 68; Spear = 17 u.
 2?? (Ferozpur):  L = 0.35 mm (0.32-0.38); a = 20.7 (20.3-21.2); b = 4.2 (4.2-4.3); c = 16.9 (13.6-20.3); V = 72 (71-74); Spear = 15 u (15-17).
 When killed, nematode assumes only a slightly ventrally arcuate shape on death.  Body striation fine, lip-region low conoid with two annules having comparatively large first annule.  Cephalic sclerotization strong extending up to three body annules.  Spear 15 u in length (15-17 u in paratypes), spear knobs flattened rounded.  Opening of dorsal oesophageal gland located 2 u posterior to spear-knob.  Oesophagus typical of the genus.  Excretory pore located opposite oesophago-intestinal junction.  Hemizonid anteriorly adjacent to excretory pore.  Lateral field with four incisures.  Ovary single, anteriorly outstretched, Spermatheca inconspicuous without sperms.  Post uterine sac 1½ times the vulval-body-widths long.  Occasionally rudimentary posterior ovary present.  Tail conoid bearing 28 (20-35 in paratypes) annules on the ventral side, terminus indented.  Phasmid located in the posterior third of tail.
 Male:  Not found.
 Holotype:  Female on Type Slide No. 554 deposited with the National Nematode Collection, Division of Nematology, Indian Agricultural Research Institute, New Dehli-12.
 Paratypes:  5 females on Type Slide No. 552-555.  Other data same as for holotype.
 Type habitat and locality:  Soil around guava roots, at Burwala, Dehli.
 Diagnosis and relationship:  Pratylenchus impar resembles Pratylenchus alleni, Ferris, 1961 but can differentiated from the later by having comparatively bigger first annule, anteriorly located vulva, post uterine sac measuring 1½ times the vulval body width, inconspicuous Spermatheca without sperms and also by the absence of male (V = 78-83, post uterine sac slightly longer than vulval-body-width, Spermatheca with sperms and males present in P. alleni).
 Specimens collected from soil around the roots of sugarcane at Ferozpur have been identified as P. impar.