sea cucumber, holothurian
['king crab, Alaska crab, Alaskan king crab, Alaska king crab, Paralithodes camtschatica', 'American lobster, Northern lobster, Maine lobster, Homarus americanus', 'ringneck snake, ring-necked snake, ring snake', 'platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'tailed frog, bell toad, ribbed toad, tailed toad, Ascaphus trui', 'grey whale, gray whale, devilfish, Eschrichtius gibbosus, Eschrichtius robustus', 'diamondback, diamondback rattlesnake, Crotalus adamanteus']