lophophore

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lophophore In invertebrates (e.g. Brachiopoda and Bryozoa), the circular or horseshoe-shaped feeding organ composed of ciliated tentacles surrounding the mouth. Each tentacle is hollow and contains an outgrowth of the coelom which keeps it rigid. The cilia drive a current of water through the lophophore, and plankton is collected in the process.

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lophophore See BRACHIOPODA; BRYOZOA; and PTEROBRANCHIA.

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lophophore An organ characteristic of aquatic invertebrates of the phyla Bryozoa, Phoronida, and Brachiopoda that functions in filter feeding. It consists of a ridge of hollow tentacles bearing cilia, which waft food particles into the mouth.