flatworm, platyhelminth
['Gila monster, Heloderma suspectum', 'barracouta, snoek', 'breakwater, groin, groyne, mole, bulwark, seawall, jetty', 'Band Aid', 'bullfrog, Rana catesbeiana', 'coil, spiral, volute, whorl, helix', 'porcupine, hedgehog']