1. えび   jellyfish   dolphin   shrimp   snail   Hint Half-n-half Clue   2. さめ   otter   manatee   shark   snail   Half-n-half Clue   3. ひとで   starfish   mussel   shrimp   dolphin   Half-n-half Clue   4. へび   whale   snail   swordfish   shark   Half-n-half Clue   5. かに   crab   shark   dolphin   mussel   Half-n-half Clue   6. むらさきかい   clam   mussel   dolphin   octopus   Half-n-half Clue   7. くじら   oyster   whale   turtle   snail   Half-n-half Clue