Coral Reefs In UV Light

• Ribbon reef – long, narrow, possibly winding reef, usually associated with an atoll lagoon
• Table reef – isolated reef, approaching an atoll type, but without a lagoon
• Habili – reef specific to the Red Sea; does not reach the surface near enough to cause visible surf; may be a hazard to ships (from the Arabic for "unborn")
• Microatoll – community of species of corals; vertical growth limited by average tidal height; growth morphologies offer a low-resolution record of patterns of sea level change; fossilized remains can be dated using radioactive carbon dating and have been used to reconstruct Holocene sea levels