This is also an interesting animal called a holothurian, or
sea cucumber. The reef bottom is covered with these animals. They eat large amounts
of sand as they slowly crawl over the bottom.
This is another beautiful seastar called a pincushion seastar. Can you guess why it is has
this name? Here you can see the stomach in the center and a groove down the center of
each arm with little tube feet on each side of it. These feet allow the animal to move.