1. くじら   sea urchin   octopus   shrimp   whale   Hint Half-n-half Clue   2. へび   swordfish   whale   snail   starfish   Half-n-half Clue   3. むらさきかい   mussel   jellyfish   clam   starfish   Half-n-half Clue   4. かわうそ   eel   shrimp   manatee   otter   Half-n-half Clue   5. がい   dolphin   crab   clam   mussel   Half-n-half Clue   6. たこ   swordfish   oyster   otter   octopus   Half-n-half Clue   7. くらげ   otter   jellyfish   starfish   shark   Half-n-half Clue