Cato Reef Cato Reef Cato Reef, a part of the Cato Bank, is an area in the Coral Sea off the central coast of Queensland, Australia that is of approximately 21 km by 13 km of this 200 km area, where depth of water is typically less than 17 m. Upon Cato Bank Cato Reef encircles an area of 3.3 km by 1.8 km, area 5 km including a small shallow lagoon which contains Cato Island, a low-relief cay in the west that is approximately 650 by 300 m, area 15 hectares, 6 m high. Close to the southeast corner of Cato
Open brain coral lobed. They typically have bilateral symmetry. During the day when the polyp is closed, the coral is covered by a mantle that extends beyond the skeleton, but can retract when disturbed. Polyps and mantle are very fleshy. Colonies can be blue, green, yellow, brown, and are often vibrantly colored. The open brain coral is known to host a species of gall crab, "Lithoscaptus" "semperi." Open brain corals can be found throughout the Indo-Pacific, from the Red Sea to New Caledonia. They are found up to a maximum depth of 40 meters. Open brain corals are less common directly in coral