sea cucumber, holothurian
['Dungeness crab, Cancer magister', 'echidna, spiny anteater, anteater', 'amphibian, amphibious vehicle', 'tailed frog, bell toad, ribbed toad, tailed toad, Ascaphus trui', 'great white shark, white shark, man-eater, man-eating shark, Carcharodon carcharias', 'cucumber, cuke', 'wreck']