Ribbon ID, western or eastern?

[hjelte]

Damnit, I don´t have my copy of the Rossman book here at home now, I´ts in a friends basement. thanks for the scan Steve

[guidofatherof5]

I've got all the range maps. Let me know if you need any others.

[hjelte]

Great, thanks!
Here, I found this pic and think it looks pretty much exactly like my ribbon:

Ribbon Snakes - <i>Thamnophis sauritus</i> and <i>Thamnophis proximus</i>/P1060896

The orarius appears to be more "spotty" on the sides, but then again this of course could be individual variations I guess.

[guidofatherof5]

Tough to ID these ribbons.
They are such beautiful snakes.