Plate L 



Fig. 1. Sauromalus hispidus Stejneger. A. M. N. H. No. 5608, Angel de la 

 Guardia Island. To show spinous character of nuchal scales in the adult. 



Fig. 2. Sauromalus hispidus Stejneger, U. S. N. M. Xo. 64572, same locality. 

 To show transverse dorsal bands of the juvenile coloration. (Neck constricted by 

 label.) 



Fig. 3. Sauromalus ater Dumcril. A. AI. X. H. No. 6808, La Paz. To show the 

 similarity of the juvenile coloration and the difference in nuchal scales in a specimen 

 of approximately the same size as S. hispidus in Fig. 2. 



