LIST OF ILLUSTRATIONS 



Xlll 



Fig. 63. Desert whip-tailed lizard {Cnemidophorus tessellatus) 



at Carlsbad Cavern 167 



Fig. 64. Tiger lizard (Crotaphytus wislizenii) 168 



Fig. 65. Western collared lizard {Crotaphytus collaris baileyi) . . 168 



Fig. 66. Horned toad (Phrynosoma cornutum) 173 



Fig. 67. The vinegaroon or whip scorpion 173 



