Need help IDing a cory

Siren

Mythological Creature
Okay, so I'm not hugely familiar with cory species,. I mean, I can tell that it's a cory and that's about it....I think they will be in the next tank that I buy, but I need to know much more information first....

The one I saw at the LFS was most transparent (you could see some of it's organs), about 1 inch long, and it had an iridescent green patch behind it's eye, on the gill flap. No other colouring. Any ideas what it could be? A link to a species fact sheet would be really helpful too...thanks!
 
Nope, no dye....it was the same green cast a betta has if it has a green wash.
dark eyes, so not an albino...checking the websites above. I'll let you know what I find.
 
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