Part I: Introduction -- 1. Mesophotic coral ecosystems: Introduction and Overview -- Part II: Regional Variation in Mesophotic Corarl Ecosystems -- 2. Bermuda -- 3. The Bahamas and Cayman Islands -- 4. Pulley Ridge, Gulf of Mexico, U.S.A. -- 5. The Mesoamerican Reef -- 6. Discovery Bay, Jamaica -- 7. Puerto Rico -- 8. The United States Virgin Islands -- 9. Bonaire and Curaçao -- 10. Brazil -- …