A small male diamondback rattlesnake crossing the Meier ranch road in Val Verde County, Texas
Mottled rock rattlesnake photographed in situ and unmolested in hunting pose.
This snake was sitting under a large rock (.6m x 1m x .3m) that was sitting on the bedrock bottom of the canyon. The snake rattled at us as we walked past. It was caught, photographed and then released at its original site.
Found dor in the vicinity of the intersection of FM 3159 and FM 2673 near Startzville. GPS coordinates approximate.
Crotalus is a genus of venomous pit vipers found only in the Americas from southern Canada to northern Argentina. The name is derived from the Greek word krotalon, which means "rattle" or "castanet", and refers to the rattle on the end of the tail which makes this group (genera Crotalus and Sistrurus) so distinctive. 32 species are currently recognized.