I believe there are a couple others. I know when Tom Crutchfield first posted his albinos I spents some time trying to find out what the others could be. The image url is of four iguanas one is an albino, a blue one, a white one, and what I assume to be a normal. The white one has pink eyes which may mean it is just a lighter albino, but I think there is something else going on there. It is white. The blue is really cool also. The image is from reptilechannel.com. These may or not be proven by now, I just have the picture saved on my computer. I hope this helps as I do not know much more about the iggys.

Jon Drawdy