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Photo take at -50 ft on a coral reef this beauty is attach to a brain coral This feather worm has a double fold of radioles that form a U-shaped crown. The opening of the tube has a simple lid (operculum) that consists of a series of discs. The tubes are hard, calcareous. The color of the crown is variable, most common are shades of red, orange, yellow or white. The crown can be almost uniformly colored, or banded. Size: whole animal up to 10 cm, crowns up to 4 cm.
This feather worm occurs all over the reefs. Tubes usually encased in living coral. Ranges from 3 m down to 30 m. Florida all the Caribbean sea to North Brazil. found worldwide as well.