water snake
['king crab, Alaska crab, Alaskan king crab, Alaska king crab, Paralithodes camtschatica', 'fiddler crab', 'snail', 'submarine, pigboat, sub, U-boat', 'hippopotamus, hippo, river horse, Hippopotamus amphibius', 'limpkin, Aramus pictus', 'rock crab, Cancer irroratus']