Genus: Elongate reniform (kidney-shaped); typically one postoral ciliary row; cytostome small, triangular,
1/4 from anterior end toward right side; macronucleus rounded; a micronucleus; a contractile
vacuole (Kudo, 1966).
Species: Cell body 50-70 μm long (How to know the protozoa, 1979; Kudo, 1966).
27-30 ciliary rows; preoral suture curved to right (Kudo, 1966).
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