Need help with identification of Iguana
 

I was given this little iguana because the previous owner was tired of being bitten. I don't know much about lizards. I've got a Gila and my daughters have leopard geckos. I'm a snake guy. I tried looking at pics and trying to figure it out that way but there are some that look very similar as babies. It's approx 3.5 inch from snout to vent. Any help would be great.

Ctenosaura Similis :)