Oesophageal glands in line, with moderate dorsal overlap of the intestine. Oesophago-intestinal valve undeveloped. Posterior genital branch reduced to a post uterine sac. Tail elongate-conical, rounded terminaly. Male lip region, high, asymmetrical (dorsal sectors higher), not or only slightly set-off; cephalic sclerotization weak; stylet and oesophagus reduced. Gubernaculum not protruding. Caudal alae sub-terminal.