• Body length up to 120 mm, greatest diameter 3 mm.
• Head 0.5 mm. in diameter, lips twice as broad at base as high, somewhat rounded.
• Cuticle transversely striated at intervals of 6um.. Body without alae.
•  Intestinal caecum slightly more than half length of, and about one-fourth as thick as, the esophagus.
• Esophagus 6.6% of the total body length.
• Posterior terminus of body mucronate.
•  Anus subterminal.

Male:

• Spicules subequal in length (1.4 and 1.3 mm.), one much thinner (28um) than the other (85um.
• Cloaca about 150 um in front of the posterior extremity.
• Posterior to cloaca are five pairs of papillae and two single glandular papilliform structures,
• Anterior to cloaca is a transverse sinuous line of five papillae and, extending anteriorly from the second and fourth papillae of this row are two files, each of 16 papillae,

Female:

• Vulva a transverse slit just anterior to mid-body.
•  Vagina about 4 mm. long, uteri double and convergent, reaching nearly to
  posterior extremity of worm, ovaries intricately coiled about the uteri throughout their length.
• Anus about 1 mm.from tail tip.
• Eggs 114-142 by 71-85 um with thick smooth shell.

Ref: Chapin, 1924