The West Indian Sea Egg is a type of sea urchin and is usually found in the Bahamas and Florida. This urchin is usually dark in color. Like all sea urchins, it has spines. These spines can grow up to about an inch long and have little tube feet at the tip. The urchin is usually found with debris such as seagrass and fragments of shell on top of their spines held in place by these tubed feet for protection from the sun. Like all echinoderms, sea urchins contain a water-vascular system and a hemal system. The fluid that flows in the main body cavity has phagocytic coelomoctyes which are key to the process of blood clotting. This is where liquid turns to a gel and prevents the loss of any more blood. Phagocytic coelomoctyes also collect and remove waste products through the gills and tube feet of the urchin.