1. jellyfish   tricheco   delfino   riccio di mare   medusa   Hint Half-n-half Clue   2. seal   medusa   granchio   anguilla   foca   Half-n-half Clue   3. oyster   ostrica   tartaruga   balena   aragosta   Half-n-half Clue   4. mussel   tartaruga   cozza   medusa   ostrica   Half-n-half Clue   5. eel   polpo   anguilla   tartaruga   lumaca   Half-n-half Clue   6. crab   tricheco   granchio   balena   stella marina   Half-n-half Clue   7. shark   stella marina   gamberetto   pescecane   balena   Half-n-half Clue