species identification question

[Loohan]

Apparently there is more than 1 species of box turtle in North-Central Arkansas. Here are pics of one who visited me several times in Aug and Sep of '07. Once i opened my cabin door in the morning, and it was just outside, looking up at the door expectantly.
It kind of resembles a Gulf Coast Tortoise, but this is too far north.

 

[Yvonne G]

That's a three toe (Terrapene carolina triunguis).

 

[Loohan]

Thanks. Must be a pretty mature one. Wikipedia says
"Three-toed box turtles have a domed shell which grows to an average 4.5 to 5 inches in length. The record shell length for this subspecies is 7 inches."
That white lid is probably a bit over 4" diameter.