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Vorticellidae

Vorticellidae is a family of ciliates belonging to the order Sessilida. They are colonial or unicellular organisms that are attached to a substrate via a stalk. The distinguishing characteristic of the family is a helical spasmoneme within the stalk that is contractile.

Members of this family are common in marine, freshwater, and terrestrial habitats around the world.

Genera

Genera:

References