sea cucumber, holothurian
['hog, pig, grunter, squealer, Sus scrofa', 'submarine, pigboat, sub, U-boat', 'horned viper, cerastes, sand viper, horned asp, Cerastes cornutus', 'goldfish, Carassius auratus', 'buckeye, horse chestnut, conker', 'mink', 'mud turtle']