I'm guessing it's not a retained shed, though I must say, St. George handled being in the bucket with damp paper towels floating in warm water very well. I'd shredded the paper towels and he'd been digging through them. Might have to try that with dry paper towels in his tank later.

Anyhow, I uploaded a photo to try and show what's going on. The black circle is an attempt at showing the 'cracking' of the top of the scales, which seem almost to be a crease in the scale? The red circle is where one of the scales had mostly peeled away to show the underpart of the scale, and is now black and slightly wrinkled, similar to the scales on the back. I don't think it's scale rot, but since I've never seen what that looks like in person I can't be completely sure....

Garter Snake Gallery - Help?