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chaeta

A Dictionary of Biology | 2004 | 301 words | Copyright

chaeta (pl. chaetae) A bristle, made of chitin, occurring in annelid worms. In the earthworm they occur in small groups projecting from the skin in each segment and function in locomotion. The chaetae of polychaete worms (e.g. ragworm) are borne in larger groups on paddle-like appendages (parapodia).

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