The three-toed box turtle is a subspecies of the same box turtle species as the recently posted Florida box turtle.
Three-toed box turtles are probably even more common in the pet trade than other subspecies of Terrapene carolina. They do adapt well to captivity, in fact many specimens in the pet trade are captive bred.
Three-toed box turtles.
Three Toed Box Turtle – Terrapene carolina triunguis on Box Turtles.
Box turtle on Wikipedia.