thunder snake, worm snake, Carphophis amoenus
['scorpion', 'chambered nautilus, pearly nautilus, nautilus', 'rubber eraser, rubber, pencil eraser', 'crayfish, crawfish, crawdad, crawdaddy', 'leatherback turtle, leatherback, leathery turtle, Dermochelys coriacea', 'beaver', 'echidna, spiny anteater, anteater']