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