From EskimoBluDay: The book "Reef Life: A Guide to Tropical Marine Life" has a great breakdown by region (Tropical Indo-Pacific, Tropical Eastern Pacific, Tropical Western Atlantic) With subdivisions within region.

• The Caribbean
• The Hawaiian Islands
• French Polynesia
• The Fijian Islands
• The Philippines and South China Sea
• Micronesia
• The Indonesian Archipelago
• Papua New Guinea and the Solomon Islands
• The Great Barrier Reef
• Western Thailand and Andaman Sea
• The Maldives and Western Indian Ocean
• The Red Sea
• Tropical Eastern Pacific