Feather Duster - Indonesia, 2007
The feather duster like the Christmas tree filaments are actually the feeding appendages of sea worms. We don't ever see the worm part while diving. I did see a picture of this kind of sea worm in "National Geographic" and it does look like about a 4 inch earth worm. See also Swirling Filament and Right Angle Christmas Tree Filaments.
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