1. kame、umigame   otter   turtle   oyster   eel   Hint Half-n-half Clue   2. unagi   eel   dolphin   lobster   snail   Half-n-half Clue   3. kawauso   otter   shark   snail   turtle   Half-n-half Clue   4. tako   octopus   clam   turtle   sea urchin   Half-n-half Clue   5. mekajiki   dolphin   swordfish   manatee   crab   Half-n-half Clue   6. murasakai   sea urchin   mussel   dolphin   jellyfish   Half-n-half Clue   7. manati   whale   manatee   sea urchin   mussel   Half-n-half Clue