CONTENTS. 



I'AlilS 



Ignanidce 42 



Dipsosaiirus 43 



dorsalis (Crested Lizard) 44 



Umal 46 



notata (Sand Lizard) 47 



iuornata (Plain Saud Lizard) 47 



Callisaurus 47 



ventralis (Gridirou-tailed Lizard) 48 



Holbrookia 51 



maculata approximaus (Western Earless Lizard) 51 



Crotaphytiis 53 



baileyi (Bailey's Lizard) 53 



wislizenii (Leopard Lizard) 56 



silns (Short-nosed Leopard Lizard) 59 



Sauromalus 60 



ater (Alderman Lizard. Chiick-walla) 60 



Uta. 63 



mearnsi (Mearns's Lizard) 64 



stansbiiriaiia (Brown-shonldeied Lizard) 66 



graciosa (Long-tailed Uta) 69 



symmetrica (Tree Uta) 70 



Sceloporus 73 



graciosus (Mountain Lizard) 74 



occideutalis (Blue-bellied Lizard) 77 



biseriatus (Fence Lizard) 80 



magister (Scaly Lizard) 84 



orcutti (Dusky Scaly Lizard) 86 



Phrynosoma 89 



douglassii (Pigmy Horned Toad) 90 



blainvillii (Blainville's Horned Toad) 91 



frontale (California Horned Toad) 93 



platyrhinos (Desert Horned Toad) 98 



m'callii (Flat-tailed Horned Toad) 100 



Anguidoi 101 



Gerrhonotus 102 



scincicauda (Alligator Lizard) 103 



buruettii (Burnett's Alligator Lizard) 107 



principis (Northern Alligator Lizard) 112 



palmeri (Mountain Alligator Lizard) 113 



A nniellidce 115 



Anniella 116 



pulchra (Silvery Footless Lizard) 1 16 



nigra (Black Footless Lizard) 118 



Helodermatidop. 120 



