Oc. PAPERS, CAL. ACAD. Sci., Vol.. X 



[VAN DENBURGH] 



PI.ATK 125 



s agassizii, Desert Tortoise 

 Figs. 1, 2 & 3. Young collected near Mecca, Riverside County, California. .May, 1912. 

 Fig. 4. Collected near Tucson. Pima County. Arizona, June, 1912. 



