Western Diamondback Rattlesnake

My bad, I must have misread the map on here. I could've sworn that it marked the spotting much more toward the center of Texas. porcoby is right about the scales, the only way to tell for sure involves getting closer than you probably want to.

I am going to say he is a diamond back. This picture seems to show multiple rows of small scales between the eyes. A mojave would have 2 rows of larger scales. To my knowledge that is the only dependable way to differentiate between the 2 species. The population densities in this region are pretty much equal between the 2 with the mojave being slightly more common.

@ John. Both species occur in the far west of Texas. How is it too far east to be a Mojave? http://www.herpsoftexas.org/content/moja...

Found him near Terlingua, TX. Mojaves are very common there.