Here are some links to good pages about color and pattern morphs of cornsnakes. The first site is a sister site to ballpythonmorphs.com

http://cornsnakemorphs.com/photos.html
http://www.serpwidgets.com/Morphs/morphs.html


An excellent forum with some very knowledgeable cornsnake enthusiasts on it is...
http://www.cornsnakesource.com/forum/


And a link for the site of the person who probably is the leading expert on corn snakes...
Kathy Love's site
http://www.cornutopia.com/

And incidentally, Kathy is a friendly helpful person who would probably answer your question if you email her a photo of your snake. I'm in the process of buying some babies from her and have found her to be wonderful to deal with.

It's been a great surprise to find that both Kathy and Scott Felzer (probably the leading garter expert and breeder) to be excellent to deal with, ask questions and get help from, and communicate with.