• Small nematodes, 441-561 �m long. Body cylindrical, tapering towards both ends, more so posteriad.
•  Cuticle with distinct transverse striations or annuli, about 1 �m wide at midbody.
• Lateral field with five incisures or four ridged wings at midbody, two at posterior region which fade out near anus.
• Lip region with six small lips, more or less rounded; papillae visible.
• Stoma rhabditoid, lacking glottoid apparatus. Cheilostom with weakly refractive walls. Buccal ring  lower in longitudinal section. Buccal prism with straight walls, very long and narrow.
• Esophageal collar very short. Procorpus cylindrical. Metacorpus swollen, almost ovoid, with its inner walls more refractive. Isthmus almost as long as procorpus.
• Basal bulb small, ovoid or pyriform. Cardia conoid to hemispherical, surrounded by intestinal tissue.
• Nerve ring at 71-80% of neck length, surrounding the isthmus.
• Excretory pore at 82-92% of neck length, at level of isthmus base or basal bulb, behind the hemizonid.
• Deirid at basal bulb level, at 90-97% of neck length.

Female:

• Didelphic-amphidelphic, with anterior branch dextral and posterior branch sinistral.
• Ovaries with a flexure.
• Uterus two times the corresponding body diameter long, having thicker walls at proximal portion and distinct lumen at distal one.
• Vagina extending inwards to one-third of body diameter, with thicker walls at proximal portion.
• Rectum 1.1-1.3 times as long as anal body diameter.
• Tail conical-elongate, and terminus with acute mucro. Phasmid near anus.

Male:

• Reproductive system monorchic. Testis reflexed ventrally anteriorly.
• Tail conical.
• Bursa peloderan, closed anteriorly, and with eight papillae (1+2+1+1+3).
• Spicules free: manubrium rounded; lamina bent at its middle, with well developed dorsal hump and ventral wing at its middle; terminus ventrad curved, with acute tip and a subdorsal crest.
• Gubernaculum sigmoid.
• The specific epithet refers to the presence of a subdorsal crest in the spicules, a remarkable morphological feature of this species.