great looking gars, and thanks for posting the updated pics! all that being said, they have quite the interesting pattern...i'll see what Richard thinks of this too. they look pretty atypical of spotted gars we have seen in IL and other locations...do you know what river system/watershed you got them from? that would help with a bit of a mystery.
along those lines, xander, i would be wary of using the photos as representative of the species just yet if i were you--
--solomon