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Reptiles & Amphibians of Saguaro National Park

The reptiles & amphibians most often spotted in Saguaro, ranked by recent research-grade observations.

41,004
recent observations
50
species listed
50
reptiles & amphibians

Naturalists have logged 41,004 research-grade observations across the 50 most-recorded species in Saguaro. The most frequently seen is the Desert Spiny Lizard, with 4,640 recorded sightings.

Rarer finds confirmed in Saguaro include Regal Horned Lizard and Sonoran Desert Tortoise - uncommon enough that a sighting is worth logging.

Regal Horned LizardSonoran Desert Tortoise

Most-observed reptiles & amphibians in Saguaro

Desert Spiny Lizard
Sceloporus magister
4,640 observations
Western Diamond-backed Rattlesnake
Crotalus atrox
3,368 observations
Ornate Tree Lizard
Urosaurus ornatus
2,615 observations
Zebra-tailed Lizard
Callisaurus draconoides
2,587 observations
Common Side-blotched Lizard
Uta stansburiana
2,019 observations
Red-spotted Toad
Anaxyrus punctatus
1,697 observations
Sonoran Desert Toad
Incilius alvarius
1,608 observations
Pond Slider
Trachemys scripta
1,454 observations
San Esteban Island × Sonoran Spiny-tailed Iguana
Ctenosaura conspicuosa × macrolopha
1,376 observations · iNaturalist
Western Whiptail
Aspidoscelis tigris
1,314 observations
Greater Earless Lizard
Cophosaurus texanus
1,157 observations
Canyon Tree Frog
Dryophytes arenicolor
1,083 observations
Gopher Snake
Pituophis catenifer
1,056 observations
Couch's Spadefoot
Scaphiopus couchii
1,000 observations
Regal Horned Lizard
Phrynosoma solare
958 observations
Gila Monster
Heloderma suspectum
952 observations
American Bullfrog
Lithobates catesbeianus
879 observations
Western Banded Gecko
Coleonyx variegatus
858 observations
Sonoran Spotted Whiptail
Aspidoscelis sonorae
853 observations
Clark's Spiny Lizard
Sceloporus clarkii
813 observations
Sonoran Desert Tortoise
Gopherus morafkai
743 observations
Mediterranean House Gecko
Hemidactylus turcicus
708 observations
Greater Short-horned Lizard
Phrynosoma hernandesi
708 observations
Southwestern Fence Lizard
Sceloporus cowlesi
622 observations
Long-nosed Snake
Rhinocheilus lecontei
590 observations
Tiger Rattlesnake
Crotalus tigris
449 observations
Black-necked Garter Snake
Thamnophis cyrtopsis
447 observations
Desert Coachwhip
Masticophis piceus
433 observations · iNaturalist
Western Black-tailed Rattlesnake
Crotalus molossus
395 observations
Desert Kingsnake
Lampropeltis splendida
300 observations
Desert Iguana
Dipsosaurus dorsalis
298 observations
Desert Nightsnake
Hypsiglena chlorophaea
297 observations
California King Snake
Lampropeltis californiae
297 observations
Sonoran Whipsnake
Masticophis bilineatus
242 observations
Arizona Black Rattlesnake
Crotalus cerberus
206 observations
Sonoran Mud Turtle
Kinosternon sonoriense
181 observations
Sonoran Coralsnake
Micruroides euryxanthus
172 observations
Great Plains Toad
Anaxyrus cognatus
170 observations
Eastern Collared Lizard
Crotaphytus collaris
166 observations
Western Threadsnake
Rena humilis
162 observations
Banded Sand Snake
Sonora cincta
151 observations
Checkered Garter Snake
Thamnophis marcianus
136 observations
Spiny Softshell
Apalone spinifera
133 observations
Sonoran Lyre Snake
Trimorphodon lambda
121 observations
Lowland Leopard Frog
Lithobates yavapaiensis
115 observations
Mojave Rattlesnake
Crotalus scutulatus
112 observations
Western Patch-nosed Snake
Salvadora hexalepis
96 observations
Giant Spotted Whiptail
Aspidoscelis stictogrammus
92 observations · iNaturalist
Desert Grassland Whiptail
Aspidoscelis uniparens
91 observations
Elegant Earless Lizard
Holbrookia elegans
84 observations

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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