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Sabellidae, or feather duster worms, are sedentary marine polychaete tube worms where the head is mostly concealed by feathery branchiae. The epithet feather-duster refers to the multicoloured crown of finely divided tentacles that are attached in two groups, one on either side of the worm’s head.
The worm extends the tentacles for feeding and breathing but quickly retracts them at the first sign of danger.Image credit: Dr. Anthony R. Picciolo, NOAA NODC
