CONTENTS. 



F.MiE 



Iguanidcv 42 



Dipsosaurus 43 



dorsalis (Crested Lizard) 44 



Uma' 46 



notata (Sand Lizard) 47 



inornata (Plain Sand Lizard) 47 



Callisaiirns 47 



ventralis (Gridiron-tailed Lizard). 48 



Holbrookia 51 



macnlata approximans (Western Earless Lizard) 51 



Crotapbytiis 53 



baileyi (Bailey's Lizard) 53 



wislizenii (Leopard Lizard) 56 



silus (Short-nosed Leopard Lizard) 59 



Sauromalus 60 



ater (Alderman Lizard. Chi;ek-walla). . 60 



Uta 63 



mearnsi (Mearns's Lizard) 64 



stansbiiriana (Brown-shonldeied Lizard) 66 



graciosa (Long-tailed Uta) 69 



symmetrica (Tree Uta) 70 



Sceloporus 73 



graciosns (Mountain Lizard) 74 



occidentalis (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 



Anguidce 101 



Gerrhonotus 102 



scincicauda (Alligator Lizard) 103 



burnettii (Burnett's Alligator Lizard) 107 



principis (Northern Alligator Lizard) 112 



palmeri (Mountain Alligator Lizard) 113 



AnnielUdce 115 



Anniella 116 



pulchra (Silvery Footless Lizard) 116 



nigra (Black Footless Lizard) 118 



Helodermatidce 120 



