(Lohmann, 1899)
Compact trunk, up to 0.6 mm long (Folia mediterranea, Folia mediterranea 2). Buccal glands large. Endostyle long. Esophagus funnel-shaped, entering the middle part of the right side of the stomach. Gonads compact, adjoining the coil of the gut. Tail with 4-5 spindle-shaped subchordal cells.