|Searching, searching ...|
|Zooming in to see the rows of paddle feet, each with its long spine. This is the underside, so at the head what is visible is the mouth, the stubby palps, and assorted tentacles, good for sniffing out yummy meals.|
These worms tie together bits of shell, sand, rotting seaweeds, and anything else they can gather, live or dead, into messy clumps and strings. When I take this hodge-podge out of the water and pull on a shell, it's usually so well glued on that I can't get it off without ripping the whole shebang apart and killing the worm.
Wonderful glue; I wish I could find some that good in the stores!