THE REPTILE BOOK 



PLATE XLVI 



*3 14 15 



HEADS OF HORNED LIZARDS, Phrynosoma 

 5 Hernandez's Horned Lizard, P. dovglassii hernandezi. 0,13 Texas Horned Liiaiid 'P. c.>rnu.u,n. 



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



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



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- coronatum. 



