1. manatee   lumaca   aragosta   tricheco   ostrica   Hint Half-n-half Clue   2. starfish   stella marina   balena   anguilla   medusa   Half-n-half Clue   3. swordfish   tricheco   anguilla   pesce spada   stella marina   Half-n-half Clue   4. snail   delfino   lumaca   tartaruga   riccio di mare   Half-n-half Clue   5. otter   granchio   riccio di mare   lontra   balena   Half-n-half Clue   6. oyster   medusa   lumaca   anguilla   ostrica   Half-n-half Clue   7. seal   gamberetto   lumaca   foca   cozza   Half-n-half Clue