CONTENTS. 



Heloderma 120 



suspectnm (Gila Monster) 120 



, Xanliimdai 122 



, Xantusia 123 



vigilis (Desert Night Lizard) 123 



heushawi (Henshaw's Night Lizard) 128 



. riversiana (Islaud Night Lizard) 130 



Teiidce 132 



s Cnemidophoms 133 



tigris (Desert Whip-tail) 134 



undulatus (California Whip-tail) 137 



stejnegeri (Stejneger's Whip-tail) 139 



. Verticaria 140 \ 



hyperythra beldingi (Belding's Orange-throat) 141 



1 Scincidie 143 



Eumeces 143 



skiltoniauus (Western Skiuk) 144 



* gilberti (Ked-headed Skink) 147 



Serpentes 150 



Leptotyphlopidie 150 



Siagonodon 150 



humilis ( Worm Snake) 150 



BoidoE 152 



Lichanura 152 



roseofusca (California Boa) 152 



Charina 154 



bottse (Kubber Snake) 154 



Colubridce 157 



Chiloineniscus 158 



ephippicus (Burrowing Snake) 159 



Chionact is 159 



occipitalis (Desert Snake) 160 



Contia 161 



mitis (Sharp-tailed Snake) 162 



Diadophis 1 64 



arnabilis (Western Ring-neck Snake) 164 



Lampropeltis 166 



zonata (Californian King Snake) 167 



boylii (Boyle's Milk Snake) 169 



California (California Milk Snake) 172 . 



Rhinocheilus 174 



lecontei (Long-nosed Snake) 174 



Tantilla 176 



eiseni (California Tantilla) 177 



