University of Michigan 



PLATE V. 



Figure i. Sceloporus graciosus (right) ana ^celoporus biseriatus 

 (left) in their natural habitats. S. graciosus is on the ground on the 

 litter under a sagebrush; S. biseriatus is on a rock clifif. 



Figure 2. A specimen of the variety of Phrynosoma hernandesi 

 which inhabits Maggie Basin. 



