terrapin
['puffer, pufferfish, blowfish, globefish', 'isopod', 'megalith, megalithic structure', 'king penguin, Aptenodytes patagonica', 'electric ray, crampfish, numbfish, torpedo', 'African chameleon, Chamaeleo chamaeleon', 'gar, garfish, garpike, billfish, Lepisosteus osseus']