Hello,
I agree, that does appear to be scraped up skin. A lot of dragons like to squeeze their
body through crevices, etc & end up scraping the scales up like that.
If you have any raw, unpasteurized honey you can put that on the area, daily, at night, so
that it stays on. Just be sure that there aren't any bugs that might be attracted to the honey
left in his tank.
Tracie