hammerhead, hammerhead shark
['green snake, grass snake', 'paddlewheel, paddle wheel', 'boa constrictor, Constrictor constrictor', 'horned viper, cerastes, sand viper, horned asp, Cerastes cornutus', 'king snake, kingsnake', 'common newt, Triturus vulgaris', 'jackfruit, jak, jack']