Western Diamondback or Mojave?

I was out hiking yesterday and came across this snake sleeping in the sand by the trail.

Can anyone one determine if it's a WDB or a Mojave.

Sorry the photo isn't that great, didn't want to get too close.

David

I don't know for certain, but living in California I can tell you the Mojave is usually going to look more green than the Western. The diamond pattern fades are you get close to the tail on the Mojave (can't see in this picture) while on the Western it's pretty consistent throughout with minor fading.

From the looks of the head scalation, that's an atrox (WDB).

Originally Posted by Hearts-a-Glow

I don't know for certain, but living in California I can tell you the Mojave is usually going to look more green than the Western. The diamond pattern fades are you get close to the tail on the Mojave (can't see in this picture) while on the Western it's pretty consistent throughout with minor fading.

Head scalation (enlarged between the supraoculars in mohaves) and tail banding (white and black bands are approx. 50/50 in atrox, with the white 2x wider than the black in mohaves) are the most reliable methods of identification between atrox and scutulatus. Some examples that contradict fading for IDing:

Great pics!!

Originally Posted by Nanci

Great pics!!

I try. Took me a while to get my site back up a running. But these and all my other NM herp pics are up once again.

id say atrox. you can tell them apart by the eye stripe. On the westerns the eye stripe is for more forward and on the mojaves it starts further back.

Those are some awesome photos Chris!!! PM Sent

Great pic. Where were you hiking?

Really David. Why wouldn't you want to get too close? Great shot. They look wicked.

I'm leaning more towards Atrox, but could possibly be a naturally occurring intergrade.