sea cucumber, holothurian
["yellow lady's slipper, yellow lady-slipper, Cypripedium calceolus, Cypripedium parviflorum", 'grey whale, gray whale, devilfish, Eschrichtius gibbosus, Eschrichtius robustus', "plunger, plumber's helper", 'rhinoceros beetle', 'platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'tick', 'ringneck snake, ring-necked snake, ring snake']