Genus Trichotylenchus

Lip region continuous with body contour. In SEM face views, oral disc lemon- shaped, submedian lobes low and flattened, lateral lobes completely regressed, amphid apertures appear as slits or pores at lateral edge of labial disc. Stylet attenuated, 15-25 um long, with needle-like cone (somewhat stronger in T. palustris). Lateral field areolated, with three lines. Deirids absent. Tail long, three to six times as long as wide, cylindroid, with a broadly rounded or clavate end, sometimes with thicker cuticle at tail tip. Male spicules with well developed velum, and bent gubernaculum.