Brittle stars

Yesterday and today, by lifting several small hiding places and peeking underneath, I uncovered two brittle stars.  They forage about the bottom at night, but hide during the day.  Their central disc is less than an inch across, their arms extend out 4 or 5 inches.  Brittle stars are echinoderms like sea stars (also know as starfish).

The photos above were taken at a depth of about 15 feet.  I'm guessing this was a banded-arm brittle star.

This photo was taken at a depth of about 35 feet.  This appears to be a ruby brittle star.