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).
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