Family: Body long, flat, with beak-like anterior rostrum; oral area in long ventral groove behind rostrum Müllerian vesicles in endoplasm. Genus: Oral area round, behind rostrum, leads into tubular cavity (Illustrated Guide, 1985). Species Cell body lanceolate in shape, with longitudinal stripes, 150-250 μm long; two macronuclei; 5-7 Müllerian vesciles (Carey, 1972).

50 μm 100 μm 150 μm; x 400 : 31 μm 63 μm 94 μm; x 640