mud turtle
['goldfish, Carassius auratus', 'rock crab, Cancer irroratus', 'cougar, puma, catamount, mountain lion, painter, panther, Felis concolor', 'sea urchin', 'amphibian, amphibious vehicle', 'worm fence, snake fence, snake-rail fence, Virginia fence', 'chambered nautilus, pearly nautilus, nautilus']