Across
- 4. Artichoke/solitary disk coral
- 5. Thin leaf lettuce coral
- 7. Scaled lettuce coral
- 9. Staghorn coral
- 12. Speckled cup coral
- 16. Ridged cactus coral
- 19. Atlantic mushroom coral
- 20. Rose coral
- 22. Low relief lettuce coral
- 23. Spiny flower coral
- 24. Dimpled sheet coral
- 25. Rough cactus coral
- 26. Fragile saucer coral
- 27. Hidden cup coral
- 28. Sunray lettuce coral
- 29. Rough star coral
Down
- 1. Pillar coral
- 2. Knobby brain coral
- 3. Blushing star coral
- 6. Lettuce coral
- 8. Grooved brain coral
- 10. Purple lettuce coral
- 11. Symmetrical brain coral
- 13. Knobby cactus coral
- 14. Elkhorn coral
- 15. Golfball coral
- 17. Boulder brain coral
- 18. Orange cup coral
- 21. Whitestar sheet coral