Tube worm Espirógrafo (Spirographis spallanzani)

Pure poetry and grace.  Watching one of these gracefully swaying in a lazy current is hypnotizing and peaceful.  And it´s a worm!!  What you see here are its feeding "arms" which have tiny "hairs" which capture prey and bring it to its mouth, in the center and hidden within its tube.  The tube can be very large, measuring over 50 cm for the really large tube worms, though 15cm-20cm in length would be the more common length one would find.