32 CALIFORNIA ACADEMY OF SCIENCES [Proc. 3D Ser. 



EXPLANATION OF PLATE IV. 



Sceloporus becki sp. nov. 



Type, Adult male, Cal. Acad. Sci. no. 4537, San Miguel Island, California, 

 R. H. Beck, March 26, 1903. 

 Fig. I. General view, natural size. 

 Fig. 2. Head from below, X 2^. 

 Fig. 3. Head from above, X 2^. 

 Fig. 4. Head from side, X 2j^. 



