1. ostrica   whale   mussel   oyster   sea urchin   Hint Half-n-half Clue   2. medusa   sea urchin   crab   starfish   jellyfish   Half-n-half Clue   3. delfino   swordfish   octopus   dolphin   lobster   Half-n-half Clue   4. gamberetto   shrimp   otter   dolphin   oyster   Half-n-half Clue   5. polpo   lobster   shark   octopus   sea urchin   Half-n-half Clue   6. tartaruga   dolphin   eel   turtle   sea urchin   Half-n-half Clue   7. lumaca   shrimp   snail   lobster   mussel   Half-n-half Clue