chiton, coat-of-mail shell, sea cradle, polyplacophore
['gyromitra', 'promontory, headland, head, foreland', 'ear, spike, capitulum', 'coil, spiral, volute, whorl, helix', 'platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'banded gecko', 'jellyfish']