scuba diver
['platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'whistle', 'chiton, coat-of-mail shell, sea cradle, polyplacophore', 'hard disc, hard disk, fixed disk', 'Polaroid camera, Polaroid Land camera', 'seat belt, seatbelt', 'eel']