And the answer is.....who the hell knows. I mean kinda, why is it so important? Aha, it just struck me, you're making "Roadkill Stew" and aren't sure.which species is OK and what is not. Well, I do believe some mountain man has probably penned just such a cookbook. I'd check on Amazon if it were.me.
When Iived in rural NC it was possum, but I think city folks call it opossum. Either way it the same large tasty, rodent. BTW they may "play dead" when confronted, but do NOT corner one if you are trying to hunt one