Photo: Jonathan Vandiveer, March 27, 2014. A visitor crawled into Vandiveer's studio yesterday. (Click on photos to enlarge.)
Photo: Jonathan Vandiveer, March 27, 2014. He estimated the Alligator Lizard at 6-8" long.
Looking at California Herps, it is most likely a male San Diego Alligator Lizard, common to Southern California.
Learn more about identify Alligator Lizards: California Herps