Males:  

• Body filiform, whitish, 2.72-3.59 mm long.
•  Cuticle smooth.
• Head rounded. Oral aperture very small, almost circular, surrounded by small ring of elevated tissue.
• Cephalic papillae small, in two circles; outer circle of four submedian pairs, inner circle of four single submedian papillae and a pair of lateral papillae.
•  Amphids rather small.
• Esophagus with slight inflation at anterior end; posterior portion of esophagus with well-developed, long esophageal gland with large cell nucleus at middle.
•  Posterior end of body blunt, with broad, U-shaped, lobular mound and with one pair of preanal and two pairs of postanal very flat, hardly visible caudal papillae.
•  Spicules brownish, slender, needle-like, almost equally long with somewhat expanded proximal and sharply pointed distal tips; length of spicules 6% of body length.
•  Gubernaculum narrow, with its proximal third dorsally bent;
• Spicules and gubernaculum well sclerotized

Female:  

• Body red-colored in live specimens and yellowish in smaller; posterior part of body narrower than anterior.
• Cuticle appears  smooth under LM, but SEM shows it is densely transversely striated
•  Oral aperture large, almost circular, surrounded by minute cephalic papillae arranged in two circles and slightly outlined lateral amphids; internal circle of papillae of four submedian and two lateral single papillae,  external circle of four submedian pairs of papillae of equal size and shape
• Eesophagus with anterior bulbous inflation
•  Ventriculus present,
• Eesophagus opening into intestine through distinct valve.
•  Intestine dark brown, ending blindly, its posterior end attached by long ligament ventrally to body wall near caudal end;
• Vulva and anus absent.
• Ovaries relatively short, thick, reflexed. Uterus of larger specimens occupying most of body volume; filled with numerous spherical eggs .
• Caudal end rounded, with two small, lateral papilla-like projections .

Ref: Moravecand Justine, 2008