CONTENTS. 



Iguanida> 42 



Dipsosaurus 43 



dorsalis (Crested Lizard) 44 



Uma' .* 46 



notata (Sand Lizard) 47 



iuornata (Plain Sand Lizard) 47 



Callisaurus 47 



ventralis (Gridiron -tailed Lizard) 48 



Holbrookia 51 



macnlata approximaus (Western Earless Lizard) 51 



I Crotaphytus 53 



baileyi (Bailey's Lizard) 53 N/ 



wislizenii (Leopard Lizard) 56 



silus (Short-nosed Leopard Lizard) 59 



Sauromalus 60 



ater (Alderman Lizard. Chuc^k-walla) 60 



Uta. 63 



. niearnsi (Mearns's Lizard) 64 \/ 



* stansburiana (Brown-shouldered Lizard) 66 



graciosa (Long-tailed Uta) 69 



symmetrica (Tree Uta) 70 



Sceloporus 1 73 



graciosus (Mountain Lizard) 74 



occidentalis (Blue-bellied Lizard) 77 



biseriatus (Fence Lizard) 80 



' magister (Scaly Lizard) 84 



v orcutti (Dusky Scaly Lizard) , 86 



Phrynosoma 89 



. douglassii (Pigmy Horned Toad) 90 



> blainvillii (Blainville's Horned Toad) 91 



frontale (California Horned Toad) 93 



> platyrhiiios (Desert Horned Toad) 98 



m'callii (Flat-tailed Horned Toad) 100 



Anguidce 101 



Gerrhonotus 102 



v scincicauda (Alligator Lizard) 103 



burnettii (Burnett's Alligator Lizard) 107 



principis (Northern Alligator Lizard) 112 



- palmeri (Mountain Alligator Lizard) 113 



Anniellidce 115 



Anniella 116 



, pulchra (Silvery Footless Lizard) 116 



nigra (Black Footless Lizard) 118 



HelodermatidcK .... . . 120 



