sea snake
['tench, Tinca tinca', 'coil, spiral, volute, whorl, helix', 'peacock', 'puffer, pufferfish, blowfish, globefish', 'chambered nautilus, pearly nautilus, nautilus', 'bullfrog, Rana catesbeiana', 'chiton, coat-of-mail shell, sea cradle, polyplacophore']