Crotalus scutellatus

Crotalus atrox's more toxic little brother.

An adult in Hidalgo County, New Mexico, 1 Sep 2008.

The same critter as above, 1 Sep 2008.

A juvenile in eastern Cochise County, Arizona, 1 Sep 2008.

The same critter as above, 1 Sep 2008.

And again, 1 Sep 2008.

Hidalgo County, NM, 9/5/04.

Hidalgo County, NM, 9/5/04.