Hypotrichida

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Hypotrichida (class Ciliatea, subclass Spirotrichia) An order of ciliate protozoa which are mostly ovoid and flattened, with few or no cilia on the dorsal surface. Cirri occur in groups on the ventral surface. There are three families, and many genera. They are free-living in fresh or brackish water, and feed mainly on bacteria.

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Hypotrichida

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