Genus: Body form barrel-shaped; with regularly arranged ectoplasmic plates; cytostome at
anterior end, surrounded by slightly longer cilia; often spinous projection at or near posterior end;
one or more long caudal cilia (Kudo, 1966).
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50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
