Genus: Oral area round, behind rostrum, leads into tubular cavity (Illustrated Guide, 1985).
Species: Extended about 700 μm long; dark brown;
twelve to twenty or more Müllerian vesicles in a row along dorsal border (Kudo, 1966).
Cell body elongated ovoid in shape, posterior end rounded, up to 635 μm long
(or 400-800 μm long by Dragesco); ventral surface slightly flattened, buccal groove reached
approximately 1/7 of the body length; numerous Müllerian vesciles,
macronuclei; 13-23 in number (Carey, 1972).
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