TRANSACTIONS OF THE SAN DIEGO SOCIETY OF NATURAL HISTORY Vol. VII, No. 1, pp. 1-16, plate 1, map A NEW SPECIES OF XANTUSIA FROM ARIZONA, WITH A SYNOPSIS OF THE GENUS BY Laurence M. Klauber Curator of Reptiles and Amphibians, San Diego Society of Natural History SAN DIEGO, CALIFORNIA Printed for the Society October 6, 193 1