THE REPTILE BOOK. 



PtATE XLVII 



DOUC.LASS'S HdRXKD LIZARD. 1'hryiwsxm.i dmifLi^ii 

 The horns are reduced to mere tubercles. Inhabits the northern Pacific region 



I'AI.Yn.l) HOKM.Ii I.I/AK'h. /' ..'."< i-/.; is,.. ' ,>r,:.itiimnm 



This desert variety shows in its markings remarkable 

 similarity t the soil 



1 1 IK \ AXDEZ'S HORNED LIZARD, P. dovglassiihernandesi 



( >n this variety the horns are much more developed than with 



the typical form. Common in the Western Plains region 



