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Vorticella are bell-shaped ciliates live in fresh or salt water attached by a slender, unciliated stalk to aquatic plants, surface scum, submerged objects, or aquatic animals. They eat bacteria and small protozoans, using their cilia to sweep prey into their mouth-like openings.
Although vorticellas are often found in clusters, each stalk is individually attached to the surface. When disturbed, the vorticella contracts and the stalk thread is shortened, causing the sheath to coil tightly like a spring.* |
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*Information from: Nikon - Microscopy U: Vorticella (Protozoan) Videos: https://www.microscopyu.com/search/results
