CONTENTS 



PAGE 



SYSTEMATIC DESCRIPTION 48 



Class REPTILIA 48 



Order I. SQUAMATA 48 



Suborder I. Sauna (Lizards) 51 



Family 1. GEKKONID^E 51 



1. Phyllodactylus 51 



tuberculosus (Tubercular Gecko) 51 



unctus (San Lucan Gecko) 55 



Family 2. EUBLEPHARID^E 57 



2. Coleonyx 57 



variegatus (Banded Gecko) 58 



Family 3. IGUANID;E 61 



3. Ctenosaura 64 



multispinus (Black Spiny-tailed Iguana) 64 



hemilopha (San Lucan Spiny-tailed Iguana) 66 



4. Dipsosaurus 71 



dorsalis 



dorsalis (Northern Crested Lizard) '. 73 



lucasensis (San Lucan Crested Lizard) 78 



carmcnensis (Carmen Island Crested Lizard) 81 



catalinensis (Catalina Island Crested Lizard) 83 



5. Sauromalus 84 



ater (Northern Chuckwalla) 86 



townsendi (Tiburon Island Chuckwalla) 93 



interbrachialis (Espiritu Santo Island Chuckwalla) 95 



slevini (Slevin's Chuckwalla) 97 



hispidus (Spiny Chuckwalla) . 99 



varius (San Esteban Island Chuckwalla) 101 



6. Crotaphytus 104 



collaris 



baileyi (Western Collared Lizard) 104 



insularis (Angel Island Collared Lizard) 114- 



wislizenii (Leopard Lizard) 116 



silus (Short-nosed Leopard Lizard) 128 



7. Uma 131 



notata (Ocellated Sand Lizard) 132 



8. Callisaurus 138 



crinitus (Cope's Gridiron-tailed Lizard) 140 



