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Reptiles and Amphibians

As might be expected in a warm, desert area, reptiles are common throughout the region. For the most part, they prefer the rocky slopes and dry washes where boulders and brush furnish plenty of shelter and shade. Natural foods are also.more likely to be found in this type of habitat.

Due to the great heat of the sun during the.hot summer months, many reptiles, such as snakes, come out in the late evening and search for food until the sun's rays drive them to cover again the next day. Most of the lizards are around during the daylight hours, but seldom stay out in the sunlight for any length of time. Contrary to belief, most reptiles are unable to live when subjected to the direct rays of the sun for a very long period of time. Most of the snakes and lizards in this region are very harmless, but there are two types of poisonous reptiles that live here - the rattlesnake (of which there are 5 kinds), and the Gila Monster.

Common Name Family Name Scientific Name
Yellow Mud Turtle Chelydridae Kinosternon Flavescens
Desert Tortoise Testudinidae Gopherus Agassizii
Texas Soft-Shelled Turtle Trionychidae Apclone Spiniferus
Western Banded Gecko Gekkonidae Coleonyx Variegatus
Desert Iguana Iguanidae Dipsosaurus Dorsalis
Chuckwalla Iguanidae Sauromalus Obesus
Zebra-Tailed Lizard Iguanidae Callisaurus Draconoides
Collared Lizard Iguanidae Crotaphytus Collaris
Long-Nosed Leopard Lizard Iguanidae Gabelia Wislizenii
Desert Spiny Lizard Iguanidae Sceloporus Magister
Western Fence Lizard Iguanidae Sceloporus Occidentalis
Eastern Fence Lizard Iguanidae Sceloporus Undulatus
Sagebrush Lizard Iguanidae Sceloporus Graciosus
Long-Tailed Brush Lizard Iguanidae Urosaurus Graciosus
Tree Lizard Iguanidae Urosaurus Ornatus
Side-Blotched Lizard Iguanidae Uta Stansburiana
Desert Horned Lizard Iguanidae Phrynosoma Platyrhinos
Short-Horned Lizard Iguanidae Phrynosoma Douglassii
Yucca Night Lizard Xantusidae Xantusia Vigilis
Western Whiptail Teidae Cnemidophorus Tigris
Plateau Whiptail Teidae Cnemidophorus Velox
Gila Monster Helodermatidae Heloderma Suspectum
Western Worm Snake Leptotyphlopidae Leptotyphlops Humilis
Regal Ring-Necked Snake Colubridae Diadophis Regalis
Spotted Leaf-Nosed Snake Colubridae Phyllorhynchus Decurtatus
Racer Colubridae Coluber Constrictor
Coachwhip Colubridae Masticophis Flagellum
Striped Whipsnake Colubridae Masticophis Taeniatus
Western Patch-Nosed Snake Colubridae Salvadora Hexalepis
Glossy Snake Colubridae Arizona Elegans
Gopher Snake Colubridae Pituophis Melanoleucus
Common King Snake Colubridae Lampropeltis Getula
Long-Nosed Snake Colubridae Rhinocheilus Lecontei
Western Ground Snake Colubridae Sonora Semiannulata
Western Shovel-Nosed Snake Colubridae Chionactis Occipitalis
Sonora Lyre Snake Colubridae Trimorphodon Lambda
Spotted Night Snake Colubridae Hypsiglena Torquata
Western Diamondback Rattlesnake Crotalidae Crotalus Atrox
Sidewinder Crotalidae Crotalus Cerastes
Speckled Rattlesnake Crotalidae Crotalus Mitchelli
Mojave Rattlesnake Crotalidae Crotalus Scutulatus
Tiger Salamander Ambystomidae Ambystoma Tigrinum
Southern Spadefoot Pelobatidae Scaphiopus Multriplicate
Great Plains Toad Bufonidae Bufo Cognatus
Southwestern Toad Bufonidae Bufo Microscaphus
Red-Spotted Toad Bufonidae Bufo Punctatus
Woodhouse's Toad Bufonidae Bufo Woodhouseii
Canyon Tree Frog Hylidae Hyla Arenicolor
Pacific Tree Frog Hylidae Pseudacris Regilla
Bullfrog Ranidae Rana Catesbeiana
Northern Leopard Frog Ranidae Rana Pipiens
Pond Slider Testudinidae Trachemys Scripta
Relic Leopard Frog Ranidae Rana Onca
Western Rattlesnake Crotalidae Crotalus Viridis
Spiny Softshell Turtle Trionychidae Trionyx Spiniferus
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