weird looking scale

[Yness]

I was just handling my male king and i discovered what looked like a dried out scale on his back, when I said it out loud my brother said there was two or three of them. I told him to tell me about things like that no matter what. I am wondering if anyone has any idea what it could be...It doesn't seem to bother him, he doesn't do anything when it is touched. If I had a digicam I would post a picture