THE REPTILE BOOK 



PLATE XLVI 



14 15 



HEADS OF HORNED LIZARDS, Phrynosoma 

 Hernandez's Horned Lizard, P. douglassii hernandezi. g, 13 Texas. Horned Lizard, P. cornutum. 



2, 6 Douglass's Horned Lizard, P. douglassii (typical). 



3, 7 Ditmars's Horned Lizard, P. ditmarsii. 



4, 8 Mexican Horned Lizard, P. orbiculare. 



10, 14 Ashy Horned Lizard, P. cdidiarum. 



11, 15 Regal Horned Lizard, P. regale. 



12, 16 Pacific Horned Lizard, P- coronatum. 



