Pratylenchus barkati
Das, V.M. and Sultana, Sabiha, 1979

 10 ?? (Paratypes):  L = 0.49-0.55 mm; a = 25-29.1; b = 8.3-9.6; c = 17-21; V = 74-79; stylet = 18-19.3 um.
 Holotype (female):  L = 0.55 mm; a = 29.1; b = 9.6; c = 19.9; V = 74.2; stylet = 19.3 um.

 Cuticle finely annulated, annules 1 um apart in mid-body region.  Lateral field with 4 crenate incisures occupying ? body width.  Head region flattened, about ½ as wide as high, bearing 3 annules; strongly sclerotized.  Stylet measures 19.3 um long, with anteriorly directed knobs.  Shaft of the spear 9.6 um.  Orifice of dorsal oesophageal gland lies 3.2 um behind base of spear.  Oesophageal glands in the form of a ventral lobe, extending over the intestine for 3-4 times body width.  Excretory pore 85.6 um (83-85.6 um in paratypes) from the anterior end, more than one body width below nerve ring.  A large hemizonid lies 2-3 annules above the excretory pore and measures 2-3 um in length.
 Ovary single reflexed, the flexture is about ½ body diameter.  Oocytes are arranged in a single row.  Spermatheca is small, oval in shape, filled with sperms.  Crusta formaria is present, followed by a short uterus.  Post-uterine vulval sac measures one vulval body diameter in length.  Tail is conoid, with a bluntly ending annulated terminus, 2½ anal body widths in length; phasmids located in the middle of tail.
 Male:  Unknown.
 Type habitat:  Soil around roots of Brassica oleracea var. botrytis L.
 Type locality:  Malkajgiri, Hyderabad (A.P.), India.
 Type specimen:  Holotype slide deposited in the Zoology Museum, Osmania University, Hyderabad (A.P.), India.
 Diagnosis:  This species differs from all other existing species in the presence of a reflexed ovary, but comes close to P. crenatus Loof, 1960 and P. thornei Sher & Allen, 1953 in the presence of 3 labial annules and in the shape of tail.  It differs from P. crenatus in having a shorter oesophagus, presence of spermatheca with sperms, and length of post-uterine vulval sac.  It differs from P. thornei in the position of excretory pore, short oesophagus, conspicuous oval spermatheca and position of phasmids.  It also differs from P. singhi sp. n. in being longer and more slender, a small flexture of the ovary, small oval spermatheca with sperms, length of the post-uterine vulval sac and shape of tail.  It can be differentiated from P. capitatus sp.n. by flattened lip region, shape of stylet knobs, position of dorsal oesophageal gland orifice, position of excretory pore, presence of a reflexed ovary, and shape of tail terminus.