Across
- 1. Ray family.
- 3. Bivalve mollusk.
- 5. Transparent drifter.
- 8. Snake-like fish.
- 10. Ocean giant.
- 12. Eight arms.
- 15. Reef fish.
- 17. Marine plant.
- 19. Algae type.
- 20. Reef builder.
- 21. Intelligent mammal.
- 22. Drifting organisms.
- 23. Unique fish.
Down
- 2. Shell carrier.
- 4. Clownfish home.
- 6. Apex predator.
- 7. Seaweed forest.
- 9. Clawed crustacean.
- 11. Swift predator.
- 13. Cephalopod.
- 14. Coastal tree.
- 16. Spiny sea creature.
- 18. Echinoderm.
- 20. Pincer-clad.