Posted: Sat Jul 05, 2008 2:01 pm
Welcome. It's my understanding that aquatics have greatly reduced salivary glands (one of the reasons why food has to be in water for them to eat), but perhaps yours is a little different(?) If the black area doesn't appear to be spreading, it sounds like a bit of whatever your turtle ingested is stuck on the interior of the mouth.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-