Holotype (Female): L = 0.42 mm; a = 31; b = 5.7;
c = 4.8; V = 69.
Body slender, ventrally arcuate, tapering towards both ends. Cuticle finely striated; lateral field marked with 4 incisures, measuring 1/4 of body width. Head continuous, rounded, striations not seen; amphidial openings about 1/4th of head-width across. Excretory pore located posterior to nerve ring 72um from the anterior end. Buccal spear 6.6um long with small rounded knobs, the former measuring 1/11th of oesophageal length (1/10th to 1/12th in paratypes); opening of dorsal oesophageal gland 2.5um posterior to spear-base; oesophagus typical of the genus; median bulb oval, located anterior to middle of oesophagus dividing it in ratio of about 2:3; basal bulb pyriform, cardia present. Ovary single, anteriorly outstretched; oocytes in single row. Post-vulval sac small, about 3/4th of corresponding body width in length. Rectum and anus distinct. The former measures about 3/4th of corresponding body width in length.
Allotype (Male): L = 0.45; a = 33; b = 6; c = 5.5; T = 35
Testes single anteriorly outstretched; spicules paired, similar, ventrally arcuate, measuring about 13um in length (along median curved line); gubernaculum 4um long. Bursa small, measuring about 1/6th of tail-length. Tail gradually tapering to an acute terminus, measuring about 9 times the anal body-diameters in length.
Type habitat: Soil about the roots of Rye (Brassica juncea).
Type locality: Kanpur, U.P., India
Diagnosis and relationship: T. (L.) microdorus n. sp. comes
close to T. (L.) minutus (Cobb, 1893) Andrassy, 1954 T.(L.) aberrans
1952. It can readily be distinguished from T. (L.) minutus by
having a long body (L = 0.37-0.4 in T.(L.) minutus), small spear
(spear = 8-10um in T.(L.) minutus), more posteriorly located
excretory pore (excretory pore anterior to nerve ring in T. (L.) minutus)
broad Lateral field (1/5.3-1/6.3 in T. (L.) minutus), and wide amphidial
apertures. From T. (L.) aberrans it differs in having a distinct
bursa and gubernaculum (Bursa and Gubernaculum absent in T. (L.) aberrans).
(Description- Chawla, Prasad, Khan & Nand, 1969)