Herpetofauna: One Life's List

Aspidoscelis costata barrancorum
Barranca Whiptail

Sonora, Mexico
August 19, 2011

Every once in a while I find a herp while stopping for a pee break.  Every great once in a while I see something brand new.  Such was the case for this Barranca Whiptail, basking near the roadside in east-central Sonora.  Thornscrub habitat photo is included.