chambered nautilus, pearly nautilus, nautilus
['sunscreen, sunblock, sun blocker', 'quill, quill pen', 'ostrich, Struthio camelus', 'grey whale, gray whale, devilfish, Eschrichtius gibbosus, Eschrichtius robustus', 'Dungeness crab, Cancer magister', 'ear, spike, capitulum', 'scorpion']