Bluntly conoid lip region without visible annules. Spear 23u long with moderately large, slightly cupped knobs. Dorsal esophageal gland outlet about 2u behind spear knobs. Tail with 40-45 annules and massive thick cuticle around hemispheroid terminus.
Tylenchorhynchus robustoides is immediately recognized by the long cylindroid female tail with smooth rounded terminus, and bluntly rounded lip region without visible annules.