I'm looking into do a trade with someone and he has this sentinel male, but these guys are so close to being 'normal' and there is so little information out there that I'm having a hard time figuring out the difference between a nice dinker normal and a sentinel. I can pick out stuff that's not 'normal', but I don't know if that means sentinel.
What do you think?
http://farm8.staticflickr.com/7234/7...1543ce53_b.jpg
http://farm9.staticflickr.com/8141/7...7afdd84a_b.jpg






