A Sea Biscuit I found on Jaws Beach, New Providence, Bahamas. It was stained and discolored so I soaked it overnight in bleachy water. This type is called a Fat Sea Biscuit.
Fat Sea Biscuit
©A. Derek Catalano - Download full size
The Fat Sea Biscuit
The fat sea biscuit (Clypeaster rosaceus) is a heavy-bodied species of irregular sea urchin within the family Clypeasteridae. Inhabiting the tropical shallow-water marine environments of the western Atlantic, Caribbean, and Gulf of Mexico, it represents a remarkable evolutionary divergence from typical radial urchins.




















