Thankyou! Before people accuse me of being an uber cory geek-the only reason I got that was this-
I googled corydoras elegans before I ordered my 4, this pic came up. I showed the LFS cus I wanted some and they said that's napoensis (hence why I put that first!) and that I could pre order them. I showed my landlady, she was like let me check. She then showed the pic to her friend who happens to be Ian Fuller (he wrote the book identifying corydoras) and he id'd it as undulatus.
PHEW!
Plus I have been going up and down that list on planet catfish for days...ANYWAY...
here's mine.