THE REPTILE BOOK 



PLATE XLVI 









.. 



10 



II 



I. 5 

 2,6 



3,7 



Hernandez's Horned Lizard, P. douglassii hernandezi. 

 Douglass's Horned Lizard, P. douglassii (typical). 

 Ditmars's Horned Lizard, P. ditmarsii. 



14 15 



HEADS OF HORNED LIZARDS, Phrynosoma 



p, 13 Texas Horned Lizard, P. cornulum. 



4, 8 Mexican Horned Lizard, P. orbiculare. 



10, 14 Ashy Horned Lizard, P. calidiarum. 



11, 15 Regal Horned Lizard, P. regale. 



12, 16 Pacific Horned Lizard, P- cnronatum. 



