1. エビ   crab   dolphin   lobster   shrimp   Hint Half-n-half Clue   2. ウナギ   snail   oyster   lobster   eel   Half-n-half Clue   3. ヘビ   octopus   snail   shrimp   swordfish   Half-n-half Clue   4. クラゲ   crab   otter   jellyfish   whale   Half-n-half Clue   5. ヒトデ   mussel   lobster   starfish   eel   Half-n-half Clue   6. シーライオン   seal   snail   oyster   otter   Half-n-half Clue   7. エビ   shark   manatee   lobster   crab   Half-n-half Clue