Sea Creatures and Treasures

Across

1. Shellfish known for producing pearls

3. Shellfish with fan shaped shell edges

5. Reef building marine organisms skeleton material

10. Independent ruler or supreme authority

Down

2. Brownish tone of old photographs

4. Sea creature with eight flexible arms

6. Large aquatic herbivore found in warm waters

7. Sea god with a conch shell trumpet

8. Unexpected stroke of luck or chance

9. Arctic whale known for pale color