# List of reptiles of Colorado

This is a list of individual, wild species of lizards, snakes, and turtles currently extant in the U.S. State of Colorado

## Lizards

| Family | Species | Common Name |
| Crotaphytidae | Crotaphytus collaris | Common collared lizard |
| Crotaphytidae | Gambelia wislizenii | Long-nosed leopard lizard |
| Phrynosomatidae | Holbrookia maculata | Lesser earless lizard |
| Phrynosomatidae | Phrynosoma cornutum | Texas horned lizard |
| Phrynosomatidae | Phrynosoma hernandesi | Greater short-horned lizard |
| Phrynosomatidae | Phrynosoma modestum | Roundtail horned lizard |
| Phrynosomatidae | Sceloporus graciosus | Sagebrush lizard |
| Phrynosomatidae | Sceloporus magister | Desert spiny lizard |
| Phrynosomatidae | Sceloporus undulatus | Eastern fence lizard |
| Phrynosomatidae | Urosaurus ornatus | Ornate tree lizard |
| Phrynosomatidae | Uta stansburiana | Common side-blotched lizard |
| Scincidae | Plestiodon obsoletus | Great Plains skink |
| Scincidae | Plestiodon multivirgatus epipleurotus $^§$ | Variable skink |
| Scincidae | Plestiodon multivirgatus multivirgatus $^§$ | Many-lined skink |
| Teiidae | Aspidoscelis neotesselatus * | Colorado checkered whiptail |
| Teiidae | Aspidoscelis sexlineata | Six-lined racerunner |
| Teiidae | Aspidoscelis tesselata | Common checkered whiptail |
| Teiidae | Aspidoscelis tigris | Western whiptail |
| Teiidae | Aspidoscelis velox * | Plateau striped whiptail |
$^§$Article exists for this species, but not the subspecies.
*Article exists for this genus, but not the individual species.

## Snakes

| Family | Species | Common Name |
| Colubridae | Pantherophis emoryi | Great Plains rat snake |
| Colubridae | Arizona elegans | Glossy snake |
| Colubridae | Coluber constrictor mormon $^§$ | Western yellow-bellied racer |
| Colubridae | Diadophis punctatus | Ring-necked snake |
| Colubridae | Heterodon nasicus | Western hognose snake |
| Colubridae | Hypsiglena chlorophaea | Desert night snake |
| Colubridae | Hypsiglena jani | Chihuahuan night snake |
| Colubridae | Lampropeltis holbrooki | Speckled kingsnake |
| Colubridae | Lampropeltis californiae | California kingsnake |
| Colubridae | Lampropeltis gentilis | Western milk snake |
| Colubridae | Opheodrys vernalis | Smooth green snake |
| Colubridae | Masticophis flagellum | Coachwhip |
| Colubridae | Masticophis taeniatus | Striped whipsnake |
| Colubridae | Nerodia sipedon | Northern water snake |
| Colubridae | Pituophis catenifer deserticola | Great Basin gopher snake |
| Colubridae | Pituophis catenifer sayi | Bullsnake |
| Colubridae | Rhinocheilus lecontei | Long-nosed snake |
| Colubridae | Sonora semiannulata | Western ground snake |
| Colubridae | Tantilla hobartsmithi | Southwestern blackhead snake |
| Colubridae | Tantilla nigriceps | Plains blackhead snake |
| Colubridae | Thamnophis cyrtopsis | Blackneck garter snake |
| Colubridae | Thamnophis elegans | Western terrestrial garter snake |
| Colubridae | Thamnophis proximus | Western ribbon snake |
| Colubridae | Thamnophis radix | Plains garter snake |
| Colubridae | Thamnophis sirtalis | Common garter snake |
| Colubridae | Tropidoclonion lineatum | Lined snake |
| Leptotyphlopidae | Leptotyphlops dulcis | Texas blind snake |
| Viperidae | Crotalus concolor | Midget faded rattlesnake |
| Viperidae | Crotalus viridis | Prairie rattlesnake |
| Viperidae | Sistrurus tergeminus | Western massasauga |
$^§$Article exists for this species, but not the subspecies.

## Turtles

| Family | Species | Common Name |
| Chelydridae | Chelydra serpentina | Common snapping turtle |
| Emydidae | Chrysemys picta bellii | Painted turtle |
| Emydidae | Terrapene ornata | Ornate box turtle |
| Emydidae | Trachemys scripta elegans | Red-eared slider$^†$ |
| Kinosternidae | Kinosternon flavescens | Yellow mud turtle |
| Trionychidae | Apalone spinifera | Spiny softshell turtle |
$^†$Red-eared sliders are an introduced and invasive species to Colorado.