sipunculan worm

Walking Coral - Sipunculid Worm Ned DeLoach BlennyWatcher.com

Photo Friday: Structure

July 16, 2013

This is my entry for the Photo Friday: Structure challenge. This is an interesting relationship between the coral and sipunculid worm. A coral larva settles on a shell already occupied by a sipunculid worm. The coral grows over the shell, leaving an opening on the bottom for the worm. The worm feeds through the hole and drags the coral structure around, righting it if it gets turned over in the soft sediment. If you are interested in reading more, take … Read more

Walking Coral

April 28, 2012

Bali, Indonesia March 2012 ~ I am certain I just saw a coral move across the sand. I don’t have time to stop because I am swimming rapidly to keep up with Ned and our guide Eddy, but now I’m paying more attention to the individual corallites, scattered over the otherwise empty expanse of black sand. There are hundreds of them, spaced from inches to a few feet apart and when I see a second one move, I have to … Read more