chambered nautilus, pearly nautilus, nautilus
['sidewinder, horned rattlesnake, Crotalus cerastes', 'lampshade, lamp shade', 'platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'long-horned beetle, longicorn, longicorn beetle', 'agaric', 'leaf beetle, chrysomelid', 'leatherback turtle, leatherback, leathery turtle, Dermochelys coriacea']