1. シーライオン   sea urchin   lobster   swordfish   seal   Hint Half-n-half Clue   2. ウナギ   oyster   eel   otter   jellyfish   Half-n-half Clue   3. カメ、ウミガメ   otter   jellyfish   manatee   turtle   Half-n-half Clue   4. クジラ   lobster   sea urchin   starfish   whale   Half-n-half Clue   5. ヒトデ   turtle   starfish   swordfish   jellyfish   Half-n-half Clue   6. カニ   crab   seal   snail   shrimp   Half-n-half Clue   7. イルカ   starfish   dolphin   eel   oyster   Half-n-half Clue