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Lizards
| Abronia | Arboreal Alligator Lizards |
| Abronia bogerti | Bogert's Arboreal Alligator Lizard |
| Abronia chiszari | Chiszar's Arboreal Alligator Lizard |
| Abronia deppei | Deppe's Arboreal Alligator Lizard |
| Abronia fuscolabialis | Mount Zempoaltepec Alligator Lizard |
| Abronia graminea | Sierra De Tehuacan Arboreal Alligator Lizard |
| Abronia leurolepis | Flat-scaled Arboreal Alligator Lizard |
| Abronia lythrochila | Red-lipped Arboreal Alligator Lizard |
| Abronia martindelcampoi | Martin Del Campos Arboreal Alligator Lizard |
| Abronia matudai | Matuda's Arboreal Alligator Lizard |
| Abronia mitchelli | Mitchell's Arboreal Alligator Lizard |
| Abronia mixteca | Mixtecan Arboreal Alligator Lizard |
| Abronia oaxacae | Oaxacan Arboreal Alligator Lizard |
| Abronia ochoterenai | Ochoterena's Arboreal Alligator Lizard |
| Abronia ornelasi | Ornelas's Arboreal Alligator Lizard |
| Abronia ramirezi | Ramirez Arboreal Alligator Lizard |
| Abronia reidi | Reid's Arboreal Alligator Lizard |
| Abronia smithi | Smith's Arboreal Alligator Lizard |
| Abronia taeniata | Banded Arboreal Alligator Lizard |
| Agama | Agamas |
| Agama agama | African Rainbow Lizard |
| A. a. africana | West African Rainbow Lizard |
| Ameiva | Ameivas |
| Ameiva ameiva | Giant Ameiva |
| Ameiva chaitzami | Chaitzam's Ameiva |
| Ameiva festiva | Middle American Ameiva |
| A. f. edwardsii | Edward's Middle American Ameiva |
| Ameiva undulata | Rainbow Ameiva |
| Anelytropsis | Mexican Blind Lizards |
| Anelytropsis papillosus | Mexican Blind Lizard |
| Anniella | Legless Lizards |
| Anniella geronimensis | Baja California Legless Lizard |
| Anniella pulchra | California Legless Lizard |
| A. p. nigra | Black Legless Lizard |
| A. p. pulchra | Silvery Legless Lizard |
| Anolis | Anoles |
| Anolis allisoni | Allison's Anole |
| Anolis alvarezdeltoroi | Alvarez Del Toro's Anole |
| Anolis anisolepis | Chiapan Ornate Anole |
| Anolis baccatus | Bocourt's Anole |
| Anolis barkeri | Barker's Anole |
| Anolis biporcatus | Giant Green Anole |
| A. b. biporcatus | Neotropical Green Anole |
| Anolis breedlovei | Breedlove's Anole |
| Anolis capito | Big-headed Anole |
| Anolis carolinensis | Green Anole |
| A. c. carolinensis | Northern Green Anole |
| A. c. seminolus | Southern Green Anole |
| Anolis chlorocyanus | Hispaniolan Green Anole |
| Anolis compressicauda | Malposo Scaly Anole |
| Anolis crassulus | Ornate Anole |
| Anolis cristatellus | Crested Anole |
| A. c. cristatellus | Puerto Rican Crested Anole |
| Anolis cumingi | Balsas Anole |
| Anolis cuprinus | Copper Anole |
| Anolis cybotes | Large-headed Anole |
| A. c. cybotes | Common Large-headed Anole |
| Anolis cymbops | Cope's Veracruz Anole |
| Anolis damulus | Cope's Smooth Anole |
| Anolis distichus | Bark Anole |
| A. d. dominicensis | Green Bark Anole |
| A. d. floridanus | Florida Bark Anole |
| Anolis dollfusianus | Coffee Anole |
| Anolis duellmani | Duellman's Pygmy Anole |
| Anolis dunni | Dunn's Anole |
| Anolis equestris | Knight Anole |
| A. e. equestrius | Western Knight Anole |
| Anolis ferreus | Comb Anole |
| Anolis forbesi | Forbes's Anole |
| Anolis garmani | Jamaican Giant Anole |
| Anolis godovii | Gadow's Anole |
| Anolis hobartsmithi | Northern Chiapas Anole |
| Anolis isthmicus | Tehuantepec Anole |
| Anolis laeviventris | White Anole |
| Anolis lemurinus | Ghost Anole |
| A. l. bourgeaei | Bourgeae's Ghost Anole |
| A. l. lemurinus | Central American Ghost Anole |
| Anolis liogaster | Guerrero Anole |
| Anolis macrinii | Macrinius's Anole |
| Anolis matudai | Matuda's Anole |
| Anolis megapholidotus | Large-scaled Anole |
| Anolis microlepidotus | Guerreran Oak Anole |
| Anolis microlepis | Chiapan Smooth Anole |
| Anolis milleri | Miller's Anole |
| Anolis naufragus | Hidalgo Anole |
| Anolis nebuloides | False Clouded Anole |
| Anolis nebulosus | Clouded Anole |
| Anolis omiltemanus | Omilteme Anole |
| Anolis parvicirculata | Berriozabal Anole |
| Anolis pentaprion | Lichen Anole |
| A. p. beckeri | Becker's Lichen Anole |
| A. p. cristifier | Crested Lichen Anole |
| Anolis petersii | Peter's Anole |
| Anolis polyrhachis | Sierra Juarez Anole |
| Anolis porcatus | Cuban Green Anole |
| Anolis pygmaeus | Chiapan Pigmy Anole |
| Anolis quercorum | Gray Anole |
| Anolis rodriquezi | Rodriguez's Anole |
| A. r. rodriquezi | Slender Anole |
| Anolis sagrei | Brown Anole |
| A. s. mayensis | Mayan Coastal Anole |
| A. s. sagrei | Cuban Brown Anole |
| Anolis schiedeii | Schiede's Anole |
| Anolis schmidti | Schmidt's Anole |
| Anolis sericus | Silky Anole |
| Anolis serranoi | Serrano's Anole |
| Anolis simmonsi | Simmons's Anole |
| Anolis subocularis | Pacific Anole |
| Anolis taylori | Taylor's Anole |
| Anolis tropidonotus | Greater Scaly Anole |
| A. t. spilorhipes | Upland Scaly Anole |
| A. t. tropidonotus | Greater Scaly Anole |
| Anolis uniformis | Lesser Scaly Anole |
| Anolis utowanae | Utowana Anole |
| Aristelliger | Eyelash Geckos |
| Aristelliger georgeensis | Saint George Island Gecko |
| Aspidoscelis | Whiptails & Racerunners |
| Aspidoscelis alpina | Alpine Whiptail |
| Aspidoscelis angusticeps | Yucatán Whiptail |
| A. a. angusticeps | Narrowhead Yucatan Whiptail |
| Aspidoscelis arizonae | Arizona Striped Whiptail |
| Aspidoscelis bacatus | San Pedro Nolasco Whiptail |
| Aspidoscelis burti | Canyon Spotted Whiptail |
| A. b. burti | Canyon Spotted Whiptail |
| A. b. stictogramma | Giant Spotted Whiptail |
| A. b. xanthonota | Red-backed Whiptail |
| Aspidoscelis calidipes | Rio Tepalcatepic Valley Whiptail |
| Aspidoscelis cana | Salsipuedes Island Whiptail |
| Aspidoscelis carmenensis | Carmen Island Orange-throated Whiptail |
| Aspidoscelis catalinensis | Santa Catalina Island Whiptail |
| Aspidoscelis celeripes | San Jose Island Whiptail |
| Aspidoscelis ceralbensis | Cerralvo Island Whiptail |
| Aspidoscelis communis | Giant Whiptail |
| A. c. communis | Colima Giant Whiptail |
| A. c. mariarum | Tres Marias Islands Whiptail |
| Aspidoscelis costata | Western México Whiptail |
| A. c. barrancorum | Barranca Whiptail |
| A. c. costata | Balsas Basin Whiptail |
| A. c. griseocephala | Blue-throated Whiptail |
| A. c. huico | Blue-chested Whiptail |
| A. c. mazatlanensis | Sinaloan Whiptail |
| A. c. nigrigularis | Black-throated Whiptail |
| A. c. occidentalis | Western Mexico Whiptail |
| A. c. zweifeli | Zweifel's Whiptail |
| Aspidoscelis cozumelae | Cozumel Racerunner |
| A. c. cozumelae | Brownback Yucatecan Racerunner |
| Aspidoscelis danheimae | San Jose Island Blue-throated Whiptail |
| Aspidoscelis deppei | Black-bellied Racerunner |
| A. d. deppei | Black-bellied Racerunner |
| A. d. infernalis | Deppe's Inferno Racerunner |
| A. d. schizophora | Deppe's Split Racerunner |
| Aspidoscelis dixoni | Gray-checkered Whiptail |
| Aspidoscelis espiritensis | Espiritu Santo Island Whiptail |
| Aspidoscelis estebanensis | San Esteban Whiptail |
| Aspidoscelis exsanguis | Chihuahuan Spotted Whiptail |
| Aspidoscelis flagellicauda | Gila Spotted Whiptail |
| Aspidoscelis franciscensis | San Francisco Island Whiptail |
| Aspidoscelis gularis | Common Spotted Whiptail |
| A. g. colossa | Colossal Spotted Whiptail |
| A. g. gularis | Texas Spotted Whiptail |
| A. g. pallida | Pallid Spotted Whiptail |
| A. g. rauni | Raun's Spotted Whiptail |
| A. g. scalaris | Western Spotted Whiptail |
| A. g. semiannulata | Zacatecan Spotted Whiptail |
| A. g. semifasciata | Southern Coahuila Spotted Whiptail |
| Aspidoscelis guttata | Mexican Racerunner |
| A. g. flavilineata | Yellow-striped Racerunner |
| A. g. guttata | Mexican Racerunner |
| A. g. immutabilis | Cope's Racerunner |
| Aspidoscelis gypsi | Little White Whiptail |
| Aspidoscelis hyperythra | Orange-throated Whiptail |
| A. h. beldingi | Belding's Orange-throated Whiptail |
| A. h. hyperythra | Cape Orange-throated Whiptail |
| A. h. schmidti | Schmidt's Orange-throated Whiptail |
| Aspidoscelis inornata | Little Striped Whiptail |
| A. i. chihuahuae | Chihuahua Striped Whiptail |
| A. i. cienegae | Quatro Cienegas Whiptail |
| A. i. heptagramma | Trans-Pecos Striped Whiptail |
| A. i. inornata | Little Striped Whiptail |
| A. i. junipera | Woodland Striped Whiptail |
| A. i. llanuras | Plains Striped Whiptail |
| A. i. paulula | Durangan Striped Whiptail |
| Aspidoscelis labialis | Baja California Whiptail |
| Aspidoscelis laredoensis | Laredo Striped Whiptail |
| Aspidoscelis lineatissima | Many-lined Whiptail |
| A. l. duodecemlineata | Twelve-lined Whiptail |
| A. l. exorista | Michoacán Many-lined Whiptail |
| A. l. lineatissima | Many-lined Whiptail |
| A. l. livida | Blue Many-lined Whiptail |
| Aspidoscelis marmorata | Marbled Whiptail |
| A. m. marmorata | Western Marbled Whiptail |
| A. m. reticuloriens | Eastern Marbled Whiptail |
| Aspidoscelis maslini | Maslin's Racerunner |
| Aspidoscelis maxima | Cape Region Whiptail |
| Aspidoscelis mexicana | Mexican Whiptail |
| Aspidoscelis motaguae | Giant Whiptail |
| Aspidoscelis neomexicana | New Mexico Whiptail |
| Aspidoscelis neotesselata | Colorado Checkered Whiptail |
| Aspidoscelis opatae | Opata Whiptail |
| Aspidoscelis pai | Pai Striped Whiptail |
| Aspidoscelis parvisocia | Mexican Pygmy Whiptail |
| Aspidoscelis picta | Monserrate Island Whiptail |
| Aspidoscelis rodecki | Rodeck's Whiptail |
| Aspidoscelis sackii | Sack's Spotted Whiptail |
| A. s. gigas | Giant Spotted Whiptail |
| A. s. sackii | Sack's Spotted Whiptail |
| Aspidoscelis septemvittata | Plateau Spotted Whiptail |
| A. s. septemvittata | Plateau Spotted Whiptail |
| Aspidoscelis sexlineata | Six-lined Racerunner |
| A. s. sexlineata | Six-lined Racerunner |
| A. s. stephensae | Texas Yellowhead Racerunner |
| A. s. viridis | Prairie Racerunner |
| Aspidoscelis sonorae | Sonoran Spotted Whiptail |
| Aspidoscelis tesselata | Common Checkered Whiptail |
| Aspidoscelis tigris | Western Whiptail |
| A. t. aethiops | Sonoran Tiger Whiptail |
| A. t. dickersonae | Dickerson's Desert Whiptail |
| A. t. munda | California Whiptail |
| A. t. nigroriens | Eastern Blackthroat Whiptail |
| A. t. pulcher | Beautiful Marbled Whiptail |
| A. t. punctata | Spotted Tiger Whiptail |
| A. t. punctilinealis | Southern Whiptail |
| A. t. rubida | Pinktail Whiptail |
| A. t. septentrionalis | Northern Whiptail |
| A. t. stejnegeri | Coastal Whiptail |
| A. t. tigris | Great Basin Whiptail |
| A. t. vandenburghi | Carmen Island Whiptail |
| A. t. variolosa | Spotted Western Whiptail |
| A. t. vivida | South Coronado Island Whiptail |
| Aspidoscelis uniparens | Desert Grassland Whiptail |
| Aspidoscelis velox | Plateau Striped Whiptail |
| Aspidoscelis xanthonota | Redback Whiptail |
| Barisia | Mexican Alligator Lizards |
| Barisia ciliaris | Northern Alligator Lizard |
| Barisia herrerae | Herrera's Alligator Lizard |
| Barisia imbricata | Transvolcanic Alligator Lizard |
| Barisia jonesi | Jones's Alligator Lizard |
| Barisia levicollis | Chihuahuan Alligator Lizard |
| Barisia planifrons | Oaxacan Alligator Lizard |
| Barisia rudicollis | Rough-necked Alligator Lizard |
| Basiliscus | Basilisks |
| Basiliscus vittatus | Brown Basilisk |
| Callisaurus | Zebratail Lizards |
| Callisaurus draconoides | Zebratail Lizard |
| C. d. bogerti | Bogert's Zebra-tailed Lizard |
| C. d. brevipes | Short-footed Zebra-tailed Lizard |
| C. d. carmenensis | Carmen Island Zebra-tailed Lizard |
| C. d. crinitus | Viscaino Zebra-tailed Lizard |
| C. d. draconoides | Common Zebra-tailed Lizard |
| C. d. inusitatus | Sonoran Zebra-tailed Lizard |
| C. d. myurus | Northern Zebra-tailed Lizard |
| C. d. rhodostictus | Western Zebra-tailed Lizard |
| C. d. splendidus | Angel Island Zebra-tailed Lizard |
| C. d. ventralis | Eastern Zebra-tailed Lizard |
| Calotes | Bloodsuckers |
| Calotes mystaceus | Indochinese Bloodsucker |
| Calotes versicolor | Variable Bloodsucker |
| Chamaeleo | Chameleons |
| Chamaeleo calyptratus | Veiled Chameleon |
| Chamaeleo jacksonii | Jackson's Chameleon |
| Chondrodactylus | Sand Geckos |
| Chondrodactylus bibronii | Bibron's Sand Gecko |
| Cnemidophorus | Tropical Whiptails |
| Cnemidophorus lemniscatus | Rainbow Whiptail |
| Coleonyx | Banded Geckos |
| Coleonyx brevis | Texas Banded Gecko |
| Coleonyx elegans | Elegant Banded Gecko |
| C. e. elegans | Yucatan Banded Gecko |
| C. e. nemoralis | Colima Banded Gecko |
| Coleonyx fasciatus | Black Banded Gecko |
| Coleonyx gypsicolus | San Marcos Island Gecko |
| Coleonyx reticulatus | Reticulate Gecko |
| Coleonyx switaki | Penninsular Banded Gecko |
| Coleonyx variegatus | Western Banded Gecko |
| C. v. abbotti | San Diego Banded Gecko |
| C. v. bogerti | Tucson Banded Gecko |
| C. v. peninsularis | San Lucan Banded Gecko |
| C. v. sonoriensis | Sonoran Banded Gecko |
| C. v. utahensis | Utah Banded Gecko |
| C. v. variegatus | Desert Banded Gecko |
| Cophosaurus | Greater Earless Lizards |
| Cophosaurus texanus | Greater Earless Lizard |
| C. t. reticulatus | Sonoran Earless Lizard |
| C. t. scitulus | SouthWestern Earless Lizard |
| C. t. texanus | Texas Earless Lizard |
| Corytophanes | Helmeted Basilisks |
| Corytophanes cristatus | Smooth-headed Helmeted Basilisk |
| Corytophanes hernandezii | Hernandez's Helmeted Basilisk |
| Corytophanes percarinatus | Keeled Helmeted Basilisk |
| Cosymbotus | Asian House Geckos |
| Cosymbotus platyurus | Flat-tailed House Gecko |
| Crotaphytus | Collared Lizards |
| Crotaphytus antiquus | Venerable Collared Lizard |
| Crotaphytus bicinctores | Great Basin Collared Lizard |
| Crotaphytus collaris | Eastern Collared Lizard |
| C. c. baileyi | Western Collard Lizard |
| C. c. collaris | Eastern Collared Lizard |
| C. c. fuscus | Chihuahuan Collared Lizard |
| C. c. melanomaculatus | Black-spotted Collared Lizard |
| Crotaphytus dickersonae | Mexican Blue-collared Lizard |
| Crotaphytus grismeri | Sierra Los Cucupas Collared Lizard |
| Crotaphytus insularis | Desert Collared Lizard |
| Crotaphytus nebrius | Sonoran Collared Lizard |
| Crotaphytus reticulatus | Reticulate Collared Lizard |
| Crotaphytus vestigium | Baja California Collared Lizard |
| Cryptoblepharus | Snake-eyed Skinks |
| Cryptoblepharus poecilopleurus | Mottled Snake-eyed Skink |
| Ctenosaura | Spiny-tailed Iguanas |
| Ctenosaura acanthura | Mexican Spiny-tailed Iguana |
| Ctenosaura alfredschmidtii | Campeche Spiny-tailed Iguana |
| Ctenosaura clarkii | Michiocan Club Tail |
| Ctenosaura conspicuosa | San Esteban Island Spiny-tailed Iguana |
| Ctenosaura defensor | Yucatán Spiny-tailed Iguana |
| Ctenosaura hemilopha | Cape Spiny-tailed Iguana |
| C. h. hemilopha | Peninsular Spiny-tailed Iguana |
| C. h. interrupta | Cap San Lucas Iguana |
| Ctenosaura macrolopha | Sonoran Spiny-tailed Iguana |
| Ctenosaura nolascensis | San Pedro Nolasco Spiny-tailed Iguana |
| Ctenosaura oaxacana | Oaxaca Spiny-tailed Iguana |
| Ctenosaura pectinata | Mexican Spiny-tailed Iguana |
| Ctenosaura quinquecarinatus | Oaxacan Spiny-tailed Iguana |
| Ctenosaura similis | Gray's Spiny-tailed Iguana |
| C. s. similis | Gray's Spiny-tailed Iguana |
| Cyrtopodion | Bowfoot Geckos |
| Cyrtopodion scabrum | Rough-tailed Gecko |
| Diploglossus | Galliwasps |
| Diploglossus enneagrammus | Huaxteca Lesser Galliwasp |
| Diploglossus legnotus | Pueblan Galliwasp |
| Diploglossus rozellae | Rozella's Canopy Lizard |
| Dipsosaurus | Desert Iguanas |
| Dipsosaurus catalinensis | Santa Catalina Island Desert Iguana |
| Dipsosaurus dorsalis | Desert Iguana |
| D. d. dorsalis | Northern Desert Iguana |
| D. d. lucasensis | San Lucan Desert Iguana |
| D. d. sonoriensis | Sonoran Desert Iguana |
| Elgaria | Western Alligator Lizards |
| Elgaria cedrosensis | Cedros Island Alligator Lizard |
| Elgaria coerulea | Northern Alligator Lizard |
| E. c. coerulea | San Francisco Alligator Lizard |
| E. c. palmeri | Sierra Alligator Lizard |
| E. c. principis | Northwestern Alligator Lizard |
| E. c. shastensis | Shasta Alligator Lizard |
| Elgaria kingii | Madrean Alligator Lizard |
| E. k. ferruginea | Rusty Alligator Lizard |
| E. k. kingii | Madrean Alligator Lizard |
| E. k. nobilis | Arizona Alligator Lizard |
| Elgaria multicarinata | Southern Alligator Lizard |
| E. m. ignava | San Martin Alligator Lizard |
| E. m. multicarinata | California Alligator Lizard |
| E. m. scincicauda | Oregon Alligator Lizard |
| E. m. webbii | San Diego Alligator Lizard |
| Elgaria nana | Islas Coronados Alligator Lizard |
| Elgaria panamintina | Panamint Alligator Lizard |
| Elgaria parva | Pigmy Alligator Lizard |
| Elgaria paucicarinata | San Lucan Alligator Lizard |
| Elgaria velazquezi | Central Baja California Alligator Lizard |
| Emoia | Emoias |
| Emoia cyanura | Copper-tailed Skink |
| Emoia impar | Azure-tailed Skink |
| Eumeces | Skinks |
| See Plestiodon | |
| Furcifer | Madagascar Chameleons |
| Furcifer oustaleti | Oustalet's Chameleon |
| Gambelia | Leopard Lizards |
| Gambelia copei | Cope's Leopard Lizard |
| Gambelia sila | Bluntnose Leopard Lizard |
| Gambelia wislizenii | Longnose Leopard Lizard |
| G. w. maculosus | Lohontan Basin Leopard Lizard |
| G. w. neseotes | Cedros Island Leopard Lizard |
| G. w. punctata | Pale Leopard Lizard |
| G. w. wislizenii | Long-nosed Leopard Lizard |
| Gehyra | Dtellas |
| Gehyra mutilata | Mutilating Gecko |
| Gekko | Tropical Asian Geckos |
| Gekko gecko | Tokay Gecko |
| G. g. gecko | Common Tokay Gecko |
| Gekko ulikovskii | Golden Gecko |
| Gerrhonotus | Eastern Alligator Lizards |
| Gerrhonotus infernalis | Texas Alligator Lizard |
| G. i. austrinus | Alligator Snake Lizard |
| G. i. infernalis | Texas Alligator Lizard |
| G. i. loweryi | Lowery's Alligator Lizard |
| G. i. taylori | Taylor's Alligator Lizard |
| Gerrhonotus liocephalus | Weigman's Alligator Lizard |
| Gerrhonotus lugoi | Lugo's Alligator Lizard |
| Gerrhonotus ophiurus | Snake Lizard |
| Gonatodes | Bent-toed Geckos |
| Gonatodes albogularis | Yellow-headed Gecko |
| G. a. fuscus | Dusky Yellow-headed Gekco |
| Gymnophthalmus | |
| Gymnophthalmus speciosus | Golden Spectacled Lizard |
| G. s. sumichrasti | Sumichrast's Golden Spectacled Lizard |
| Heloderma | Gila Monsters |
| Heloderma horridum | Beaded Lizard |
| H. h. alvarezi | Black Beaded Lizard |
| H. h. exasperatum | Rio Fuertes Beaded Lizard |
| H. h. horridum | Mexican Beaded Lizard |
| Heloderma suspectum | Gila Monster |
| H. s. cinctum | Banded Gila Monster |
| H. s. suspectum | Reticulate Gila Monster |
| Hemidactylus | House Geckos |
| Hemidactylus brooki | Brook's Gecko |
| H. b. brooki | Brook's Gecko |
| Hemidactylus frenatus | Common House Gecko |
| Hemidactylus garnotii | Indo-Pacific Gecko |
| Hemidactylus mabouia | Wood Slave |
| Hemidactylus platyurus | Asian Flat-tailed House Gecko |
| Hemidactylus turcicus | Mediterranean House Gecko |
| H. t. turcicus | Turkish House Gecko |
| Hemiphyllodactylus | Gypsy Geckos |
| Hemiphyllodactylus typus | Indo-pacific Tree Gecko |
| Holbrookia | Earless Lizards |
| Holbrookia approximans | Speckled Earless Lizard |
| Holbrookia elegans | Elegant Earless Lizard |
| H. e. elegans | Canyon Earless Lizard |
| H. e. thermophila | Sonoran Earless Lizard |
| Holbrookia lacerata | Spot-tailed Earless Lizard |
| H. l. lacerata | Northern Spot-tailed Earless Lizard |
| H. l. subcaudalis | Southern Spot-tailed Earless Lizard |
| Holbrookia maculata | Lesser Earless Lizard |
| H. m. approximans | Speckled Earless Lizard |
| H. m. bunkeri | Bunker's Earless Lizard |
| H. m. flavilenta | Striped Earless Lizard |
| H. m. maculata | Great Plains Earless Lizard |
| H. m. perspicua | Prairie Earless Lizard |
| H. m. pulchra | Huachuca Earless Lizard |
| H. m. ruthveni | Bleached Earless Lizard |
| Holbrookia propinqua | Keeled Earless Lizard |
| H. p. piperata | Southern Keeled Earless Lizard |
| H. p. propinqua | Northern Keeled Earless Lizard |
| Iguana | Green Iguanas |
| Iguana iguana | Green Iguana |
| Lacerta | Lacertas |
| Lacerta bilineata | Western Green Lizard |
| Lacerta viridis | European Green Lizard |
| Laemanctus | Casque-headed Iguanas |
| Laemanctus longipes | Eastern Casque-headed Iguana |
| L. l. deborrei | Smooth Casque-headed Iguana |
| L. l. longipes | Casque-headed Basilisk |
| Laemanctus serratus | Serrated Casque-headed Iguana |
| L. s. alticoronatus | Serrated Casque-headed Iguana |
| L. s. mccoyi | McCoy's Casque-headed Iguana |
| L. s. serratus | Serrated Casque-headed Basilisk |
| Lampropholis | Sunskinks |
| Lampropholis delicata | Plague Skink |
| Leiocephalus | Curly-tailed Lizards |
| Leiocephalus carinatus | Northern Curly-tailed Lizard |
| L. c. armouri | Little Bahama Curly-tailed Lizard |
| Leiocephalus schreibersii | Red-sided Curly-tailed Lizard |
| Leiolepis | Butterfly Lizards |
| Leiolepis belliana | Butterfly Lizard |
| Lepidodactylus | Indo-Pacific Geckos |
| Lepidodactylus lugubris | Mourning Gecko |
| Lepidophyma | Tropical Night Lizards |
| Lepidophyma alvarezi | Alvarez Del Toro's Night Lizard |
| Lepidophyma chicoasensis | Sumidero Tropical Night Lizard |
| Lepidophyma dontomasi | MacDougall's Tropical Night Lizard |
| Lepidophyma flavimaculatum | Yellow-spotted Night Lizard |
| L. f. flavimaculatum | Yellow-spotted Night Lizard |
| L. f. tehuanae | Tehuana - Tropical Night Lizard |
| Lepidophyma gaigeae | Gaige's Tropical Night Lizard |
| Lepidophyma lineri | Liner's Tropical Night Lizard |
| Lepidophyma lipetzi | Lipetz's Tropical Night Lizard |
| Lepidophyma lowei | Lowe's Tropical Night Lizard |
| Lepidophyma micropholis | Cave Tropical Night Lizard |
| Lepidophyma occulor | Jalpan Tropical Night Lizard |
| Lepidophyma pajapanensis | Pajapan Tropical Night Lizard |
| Lepidophyma radula | Yautepec Tropical Night Lizard |
| Lepidophyma sawini | Sawin's Tropical Night Lizard |
| Lepidophyma smithi | Smith's Tropical Night Lizard |
| Lepidophyma sylvaticum | Madrean Tropical Night Lizard |
| Lepidophyma tarascae | Tarascan Tropical Night Lizard |
| Lepidophyma tuxtlae | Tuxtla Tropical Night Lizard |
| Lipinia | Lipinias |
| Lipinia noctua | Moth Skink |
| Mabuya | American Shiny Skinks |
| Mabuya multifasciata | Brown Mabuya |
| Mabuya unimarginata | Central American Mabuya |
| Mesaspis | Middle American Alligator Lizards |
| Mesaspis antauges | Mount Orizaba Alligator Lizard |
| Mesaspis gadovii | Gadow's Alligator Lizard |
| M. g. gadovii | Godow's Alligator Lizard |
| M. g. levigata | Smoth Alligator Lizard |
| Mesaspis juarezi | Sierra Juarez Alligator Lizard |
| Mesaspis moreleti | Morelet's Alligator Lizard |
| M. m. rafaeli | Rafael's Alligator Lizard |
| M. m. temporalis | Temporal Alligator Lizard |
| Mesaspis viridiflava | Dwarf Alligator Lizard |
| Mesoscincus | Middle American Skinks |
| Mesoscincus altamirani | Tepalcatepec Skink |
| Mesoscincus schwartzei | Schwartze's Skink |
| Neoseps | Sand Skinks |
| See Plestiodon | |
| Ophisaurus | Glass Lizards |
| Ophisaurus attenuatus | Slender Glass Lizard |
| O. a. attenuatus | Western Slender Glass Lizard |
| O. a. longicaudus | Eastern Slender Glass Lizard |
| Ophisaurus ceroni | Ceron's Glass Lizard |
| Ophisaurus compressus | Island Glass Lizard |
| Ophisaurus incomptus | Plain-necked Glass Lizard |
| Ophisaurus mimicus | Mimic Glass Lizard |
| Ophisaurus ventralis | Eastern Glass Lizard |
| Pachydactylus | Thick-toed Geckos |
| Pachydactylus bibronii | Bibron's Thick-toed Gecko |
| Petrosaurus | Rock Lizards |
| Petrosaurus mearnsi | Banded Rock Lizard |
| Petrosaurus repens | Short-nosed Rock Lizard |
| Petrosaurus slevini | Slevin's Banded Rock Lizard |
| Petrosaurus thalassinus | San Lucan Rock Lizard |
| Phelsuma | Day Geckos |
| Phelsuma guimbeaui | Orange-spotted Day Gecko |
| P. g. guimbeaui | Guimbeau's Day Gecko |
| Phelsuma laticauda | Gold Dust Day Gecko |
| P. l. laticauda | Gold Dust Day Gecko |
| Phelsuma madagascariensis | Madagascar Day Gecko |
| P. m. grandis | Giant Madagascar Day Gecko |
| Phrynosoma | Horned Lizards |
| Phrynosoma asio | Giant Horned Lizard |
| Phrynosoma blainvillii | Blainville's Horned Lizard |
| Phrynosoma braconnieri | Short-tailed Horned Lizard |
| Phrynosoma cerroense | Vizcaíno Horned Lizard |
| Phrynosoma cornutum | Texas Horned Lizard |
| Phrynosoma coronatum | Cape Horned Lizard |
| Phrynosoma ditmarsi | Rock Horned Lizard |
| Phrynosoma douglasii | Pygmy Short-horned Lizard |
| Phrynosoma goodei | Goode's Horned Lizard |
| Phrynosoma hernandesi | Greater Short-horned Lizard |
| P. h. brachycercum | Smith's Short-horned Lizard |
| P. h. hernandesi | Hernandez's Short-horned Lizard |
| Phrynosoma mcallii | Flat-tailed Horned Lizard |
| Phrynosoma modestum | Round-tailed Horned Lizard |
| Phrynosoma orbiculare | Mountain Horned Lizard |
| P. o. boucardii | Boucard's Horned Lizard |
| P. o. bradti | Sierra Madre Horned Lizard |
| P. o. cortezii | Cortez's Horned Lizard |
| P. o. dugesii | Dugès's Horned Lizard |
| P. o. orbiculare | Mountain Horned Lizard |
| P. o. orientale | Eastern Mountain Horned Lizard |
| Phrynosoma platyrhinos | Desert Horned Lizard |
| P. p. calidiarum | Southern Desert Horned Lizard |
| P. p. platyrhinos | Northern Desert Horned Lizard |
| Phrynosoma solare | Regal Horned Lizard |
| Phrynosoma taurus | Mexican Horned Lizard |
| Phrynosoma wigginsi | Concepción Horned Lizard |
| Phyllodactylus | Leaf-toed Geckos |
| Phyllodactylus angelensis | Angel Island Leaf-toed Gecko |
| Phyllodactylus apricus | Las Animas Island Gecko |
| Phyllodactylus bordai | Guerreran Leaf-toed Gecko |
| Phyllodactylus bugastrolepis | Catalina Island Leaf-toed Gecko |
| Phyllodactylus davisi | Davis's Leaf-toed Gecko |
| Phyllodactylus delcampoi | Del Campos's Leaf-toed Gecko |
| Phyllodactylus duellmani | Duellman's Pygmy Leaf-toed Gecko |
| Phyllodactylus homolepidurus | Sonoran Leaf-toed Gecko |
| P. h. homolepidurus | Sonoran Leaf-toed Gecko |
| P. h. nolascoensis | San Pedro Nolasco Gecko |
| Phyllodactylus lanei | Lane's Leaf-toed Gecko |
| P. l. isabelae | Islas Marietas Leaf-toed Gecko |
| P. l. lanei | Lane's Leaf-toed Gecko |
| P. l. rupinus | Michoacán Leaf-toed Gecko |
| Phyllodactylus muralis | Oaxacan Leaf-toed Gecko |
| P. m. isthmus | Isthmian Leaf-toed Gecko |
| P. m. muralis | Oaxacan Leaf-toed Gecko |
| Phyllodactylus nocticolus | Penninsular Leaf-toed Gecko |
| P. n. acorius | San Diego Island Leaf-toed Gecko |
| P. n. angulus | Salsipuedes Islands Leaf-toed Gecko |
| P. n. circus | San Ildefonso Island Leaf-toed Gecko |
| P. n. coronatus | Coronados Island Leaf-toed Gecko |
| P. n. estebanensis | San Esteban Island Leaf-toed Gecko |
| P. n. nocticolus | Peninsula Leaf-toed Gecko |
| P. n. sloani | Sloan's Leaf-toed Gecko |
| P. n. zweifeli | Zweifel's Leaf-toed Gecko |
| Phyllodactylus partidus | Isla Pardita Norte Leaf-toed Gecko |
| Phyllodactylus paucituberculatus | Rio Marquez Valley Gecko |
| Phyllodactylus santacruzensis | Santa Cruz Leaf-toed Gecko |
| Phyllodactylus tinklei | Raza Island Leaf-toed Gecko |
| Phyllodactylus tuberculosus | Yellow-bellied Gecko |
| P. t. ingeri | Inger's Yellow-bellied Gecko |
| P. t. magnus | Greater Yellow-bellied Gecko |
| P. t. saxatilis | Stone Yellow-bellied Gecko |
| Phyllodactylus unctus | San Lucan Gecko |
| Phyllodactylus xanti | Xantus Leaf-toed Gecko |
| Plestiodon | Skinks |
| Plestiodon anthracinus | Coal Skink |
| P. a. anthracinus | Northern Coal Skink |
| P. a. pluvialis | Southern Coal Skink |
| Plestiodon brevirostris | Shortnose Skink |
| P. b. bilineatus | Two-lined Shortnose Skink |
| P. b. brevirostris | Eastern Shortnose Skink |
| P. b. dicei | Dice's Shortnose Skink |
| P. b. indubitus | Mexican Shortnose Skink |
| P. b. pineus | Pine Woods Shortnose Skink |
| Plestiodon callicephalus | Mountain Skink |
| Plestiodon colimensis | Colima Skink |
| Plestiodon copei | Cope's Skink |
| Plestiodon dugesii | Dugès's Skink |
| Plestiodon egregius | Mole Skink |
| P. e. egregius | Florida Keys Mole Skink |
| P. e. insularis | Cedar Key Mole Skink |
| P. e. lividus | Bluetail Mole Skink |
| P. e. onocrepis | Peninsula Mole Skink |
| P. e. similis | Northern Mole Skink |
| Plestiodon fasciatus | Five-lined Skink |
| Plestiodon gilberti | Gilbert's Skink |
| P. g. arizonensis | Arizona Skink |
| P. g. cancellosus | Variegated Skink |
| P. g. gilberti | Greater Brown Skink |
| P. g. placerensis | Northern Brown Skink |
| P. g. rubricaudatus | Western Redtail Skink |
| Plestiodon inexpectatus | Southeastern Five-lined Skink |
| Plestiodon lagunensis | San Lucan Skink |
| Plestiodon laticeps | Broadhead Skink |
| Plestiodon lynxe | Oak Forest Skink |
| P. l. belli | Bell's Oak Forest Skink |
| P. l. lynxe | Eastern Oak Forest Skink |
| Plestiodon multilineatus | Chihuahuan Skink |
| Plestiodon multivirgatus | Many-lined Skink |
| P. m. epipleurotus | Variable Skink |
| P. m. multivirgatus | Northern Many-lined Skink |
| Plestiodon obsoletus | Great Plains Skink |
| Plestiodon ochoterenae | Guerreran Skink |
| Plestiodon parviauriculatus | Northern Pygmy Skink |
| Plestiodon parvulus | Southern Pygmy Skink |
| Plestiodon reynoldsi | Sand Skink |
| Plestiodon septentrionalis | Northern Prairie Skink |
| P. s. obtusirostris | Southern Prairie Skink |
| P. s. pallidus | Pallid Skink |
| P. s. septentrionalis | Northern Prairie Skink |
| Plestiodon skiltonianus | Western Skink |
| P. s. interparietalis | Coronado Island Skink |
| P. s. skiltonianus | Western Skink |
| P. s. utahensis | Great Basin Skink |
| Plestiodon sumichrasti | Sumichrast's Skink |
| Plestiodon tetragrammus | Four-lined Skink |
| P. t. brevilineatus | Short-lined Skink |
| P. t. tetragrammus | Long-lined Skink |
| Podarcis | Wall Lizards |
| Podarcis muralis | Common Wall Lizard |
| Podarcis sicula | Italian Wall Lizard |
| Sauromalus | Chuckwallas |
| Sauromalus ater | Common Chuckwalla |
| S. a. ater | Espiritu Santo Chuckwalla |
| S. a. obesus | Western Chuckwalla |
| S. a. shawi | San Marcos Island Chuckwala |
| S. a. townsendi | Sonoran Island Chuckwalla |
| S. a. tumidus | Arizona Chuckwalla |
| Sauromalus australis | Peninsular Chuckwalla |
| Sauromalus hispidus | Spiny Chuckwalla |
| Sauromalus klauberi | Spotted Chuckwalla |
| Sauromalus slevini | Monserrat Chuckwalla |
| Sauromalus varius | Piebald Chuckwalla |
| Sceloporus | Spiny Lizards |
| Sceloporus acanthinus | Bocourt's Spiny Lizard |
| Sceloporus adleri | Adler's Spiny Lizard |
| Sceloporus aeneus | Black-bellied Bunchgrass Lizard |
| S. a. aeneus | Anahuacan Bunchgrass Lizard |
| S. a. subniger | Plateau Bunchgrass Lizard |
| Sceloporus anahuacus | Anahuacan Bunchgrass Lizard |
| Sceloporus angustus | Santa Cruz Island Sator |
| Sceloporus arenicolus | Dunes Sagebrush Lizard |
| Sceloporus asper | Boulenger's Scaly Lizard |
| Sceloporus bicanthalis | Trans-volcanic Bunchgrass Lizard |
| Sceloporus bimaculosus | Twin-spotted Spiny Lizard |
| Sceloporus bulleri | Buller's Spiny Lizard |
| Sceloporus carinatus | Keeled Spiny Lizard |
| Sceloporus cautus | Shy Spiny Lizard |
| Sceloporus chaneyi | Chaney's Spiny Lizard |
| Sceloporus chrysostictus | Yellow-spotted Spiny Lizard |
| Sceloporus clarkii | Clark's Spiny Lizard |
| S. c. boulengeri | Southern Clark's Spiny Lizard |
| S. c. clarkii | Sonoran Spiny Lizard |
| S. c. vallaris | Plateau Spiny Lizard |
| Sceloporus consobrinus | Prairie Lizard |
| Sceloporus couchii | Couch's Spiny Lizard |
| Sceloporus cowlesi | Southwestern Fence Lizard |
| Sceloporus cozumelae | Cozumel Spiny Lizard |
| Sceloporus cryptus | Sierra Juarez Spiny Lizard |
| Sceloporus cupreus | Golden Longtail Spiny Lizard |
| Sceloporus cyanogenys | Blue-chinned Rough-scaled Lizard |
| Sceloporus cyanostictus | Blue Spiny Lizard |
| Sceloporus dugesii | Dugès's Spiny Lizard |
| S. d. dugesii | Eastern Dugès's Spiny Lizard |
| S. d. intermedius | Western Dugés's Spiny Lizard |
| Sceloporus edbelli | Bell's Lizard |
| Sceloporus edwardtaylori | Taylor's Spiny Lizard |
| Sceloporus exsul | Queretaran Desert Lizard |
| Sceloporus formosus | Mexican Emerald Spiny Lizard |
| S. f. formosus | Common Mexican Emerald Spiny Lizard |
| S. f. scitulus | Striated Mexican Emerald Spiny Lizard |
| Sceloporus gadovae | Gadow's Spiny Lizard |
| Sceloporus goldmani | Goldman's Bunchgrass Lizard |
| Sceloporus graciosus | Common Sagebrush Lizard |
| S. g. gracilis | Western Sagebrush Lizard |
| S. g. graciosus | Northern Sagebrush Lizard |
| S. g. vandenburgianus | Southern Sagebrush Lizard |
| Sceloporus grammicus | Graphic Lizard |
| S. g. disparilis | Northeastern Graphic Lizard |
| S. g. grammicus | Southern Plateau Graphic Lizard |
| S. g. microlepidotus | Mesquite Lizard |
| S. g. tamaulipensis | Sierra Tamaulipas Mesquite Lizard |
| Sceloporus grandaevus | Cerralvo Island Sator |
| Sceloporus halli | Hall's Spiny Lizard |
| Sceloporus heterolepis | Odd-scaled Spiny Lizard |
| Sceloporus horridus | Rough Lizard |
| S. h. horridus | Southern Rough Lizard |
| S. h. oligoporus | Few-pored Rough Lizard |
| Sceloporus hunsakeri | Hunsaker's Spiny Lizard |
| Sceloporus insignis | Coalcoman Black-collared Lizard |
| Sceloporus internasalis | Mail-snouted Spiny Lizard |
| Sceloporus jalapae | Xalapa Spiny Lizard |
| Sceloporus jarrovii | Yarrow's Lizard |
| Sceloporus lemosespinali | Lemos-Espinal's Spiny Lizard |
| Sceloporus licki | Cape Arboreal Spiny Lizard |
| Sceloporus lineatulus | Santa Catalina Spiny Lizard |
| Sceloporus lineolateralis | Yarrow's Durangle Spiny Lizard |
| Sceloporus lundelli | Lundell's Spiny Lizard |
| S. l. gaigeae | Gaige's Spiny Lizard |
| S. l. lundelli | Lundell's Spiny Lizard |
| Sceloporus macdougalli | MacDougall's Spiny Lizard |
| Sceloporus maculosus | Spotted Spiny Lizard |
| Sceloporus magister | Desert Spiny Lizard |
| S. m. cephaloflavus | Orange-headed Spiny Lizard |
| S. m. magister | Purple-backed Spiny Lizard |
| S. m. transversus | Barred Spiny Lizard |
| Sceloporus megalepidurus | Cursorial Spiny Lizard |
| S. m. megalepidurus | White-bellied Cursorial Spiny Lizard |
| S. m. pictus | Painted Cursorial Spiny Lizard |
| Sceloporus melanorhinus | Black-nosed Lizard |
| S. m. calligaster | Pastel-bellied Tree Lizard |
| S. m. melanorhinus | Southern Black-nosed Lizard |
| Sceloporus merriami | Canyon Lizard |
| S. m. annulatus | Big Bend Canyon Lizard |
| S. m. australis | Southeastern Canyon Lizard |
| S. m. ballingeri | Ballinger's Canyon Lizard |
| S. m. longipunctatus | Presidio Canyon Lizard |
| S. m. merriami | Merriam's Canyon Lizard |
| S. m. sanojae | Sanoja's Canyon Lizard |
| S. m. williamsi | Williams' Canyon Lizard |
| Sceloporus minor | Minor Lizard |
| S. m. cyaneus | Northern Blue Mountain Lizard |
| S. m. erythrocyaneus | Red-spotted Minor Lizard |
| S. m. immucronatus | Southern Blue Minor Lizard |
| S. m. minor | Red Minor Lizard |
| Sceloporus mucronatus | Cleft Lizard |
| S. m. aureolus | Eastern Cleft Spiny Lizard |
| S. m. mucronatus | Central Cleft Spiny Lizard |
| S. m. olsoni | Olson's Cleft Spiny Lizard |
| S. m. omiltemanus | Southern Cleft Spiny Lizard |
| Sceloporus nelsoni | Nelson's Spiny Lizard |
| S. n. barrancarum | Northern Nelson's Spiny Lizard |
| S. n. nelsoni | Southern Nelson's Spiny Lizard |
| Sceloporus oberon | Royal Lesser Minor Lizard |
| Sceloporus occidentalis | Western Fence Lizard |
| S. o. becki | Island Fence Lizard |
| S. o. biseriatus | San Joaquin Fence Lizard |
| S. o. bocourtii | Coast Range Fence Lizard |
| S. o. longipes | Great Basin Fence Lizard |
| S. o. occidentalis | NorthWestern Fence Lizard |
| S. o. taylori | Sierra Fence Lizard |
| Sceloporus ochoterenae | Ochoterena's Snub-nosed Spiny Lizard |
| Sceloporus olivaceus | Texas Spiny Lizard |
| Sceloporus orcutti | Granite Spiny Lizard |
| Sceloporus ornatus | Ornate Spiny Lizard |
| S. o. caeruleus | Blue Ornate Spiny Lizard |
| S. o. ornatus | Ornate Spiny Lizard |
| Sceloporus palaciosi | Palacios's Bunchgrass Lizard |
| Sceloporus parvus | Blue-bellied Lizard |
| Sceloporus poinsettii | Crevice Spiny Lizard |
| S. p. axtelli | Texas Crevice Spiny Lizard |
| S. p. macrolepis | Western Crevice Spiny Lizard |
| S. p. poinsettii | New Mexico Crevice Spiny Lizard |
| S. p. polylepis | Smallscale Spiny Lizard |
| Sceloporus prezygus | Chiapan Rough-scaled Lizard |
| Sceloporus pyrocephalus | Red-headed Spiny Lizard |
| Sceloporus rufidorsum | Mexican Desert Spiny Lizard |
| Sceloporus salvini | Salvin's Spiny Lizard |
| Sceloporus samcolemani | Coleman's Bunchgrass Lizard |
| Sceloporus scalaris | Light-bellied Bunchgrass Lizard |
| S. s. brownorum | Brown's Bunchgrass Lizard |
| S. s. scalaris | Highlands Bunchgrass Lizard |
| S. s. unicanthalis | Southwestern Bunchgrass Lizard |
| Sceloporus serrifer | Rough-scaled Lizard |
| S. s. plioporus | West Gulf Rough-scaled Lizard |
| S. s. serrifer | Yucatecan Rough-scaled Lizard |
| Sceloporus shannonorum | Shannon's Spiny Lizard |
| Sceloporus siniferus | Long-tailed Spiny Lizard |
| Sceloporus slevini | Slevin's Bunchgrass Lizard |
| Sceloporus smaragdinus | Bocourt's Emerald Spiny Lizard |
| Sceloporus smithi | Smith's Rose-bellied Lizard |
| Sceloporus spinosus | Eastern Spiny Lizard |
| S. s. apicalis | Miahuatlan Spiny Lizard |
| S. s. caeruleopunctatus | Blue-spotted Spiny Lizard |
| S. s. spinosus | Wiegmann's Spiny Lizard |
| Sceloporus squamosus | Dwarf Spiny Lizard |
| Sceloporus stejnegeri | Stejneger's Spiny Lizard |
| Sceloporus subpictus | Soutern Cursorial Lizard |
| Sceloporus sugillatus | Zempoala Bar-bellied Lizard |
| Sceloporus taeniocnemis | Nuclear Emerald Spiny Lizard |
| S. t. hartwegi | Hartweg's Emerald Spiny Lizard |
| S. t. taeniocnemis | Guatemalan Emerald Spiny Lizard |
| Sceloporus tanneri | Tanner's Spiny Lizard |
| Sceloporus teapensis | Teapen Rose-bellied Lizard |
| Sceloporus torquatus | Torquate Lizard |
| S. t. binocularis | Nuevo Leon Torquate Lizard |
| S. t. madrensis | Lesser Torquate Lizard |
| S. t. melanogaster | Central Plateau Torquate Lizard |
| S. t. mikeprestoni | Preston's Torquate Lizard |
| S. t. torquatus | Wiegmann's Torquate Lizard |
| Sceloporus tristichus | Plateau Fence Lizard |
| Sceloporus undulatus | Eastern Fence Lizard |
| S. u. speari | Spear's Prairie Lizard |
| Sceloporus uniformis | Yellow-backed Spiny Lizard |
| Sceloporus variabilis | Rose-bellied Lizard |
| S. v. marmoratus | Texas Rose-bellied Lizard |
| S. v. olloporus | Southern Rosebelly Lizard |
| S. v. variabilis | Mexican Rosebelly Lizard |
| S. v. variabilis | Southern Rose-bellied Lizard |
| Sceloporus virgatus | Striped Plateau Lizard |
| Sceloporus woodi | Florida Scrub Lizard |
| Sceloporus zosteromus | Baja California Spiny Lizard |
| S. z. monserratensis | Central Baja Spiny Lizard |
| S. z. rufidorsum | Red-backed Spiny Lizard |
| S. z. zosteromus | San Lucan Spiny Lizard |
| Scincella | Ground Skinks |
| Scincella gemmingeri | Forest Ground Skink |
| S. g. forbesorum | Forbes's Forest Ground Skink |
| S. g. gemmingeri | Cope's Forest Ground Skink |
| Scincella lateralis | Little Brown Skink |
| Scincella silvicola | Taylor's Ground Skink |
| S. s. caudaequinae | Horsetail Falls Ground Skink |
| S. s. silvicola | Taylor's Ground Skink |
| Sphaerodactylus | Dwarf Geckos |
| Sphaerodactylus argus | Ocellated Gecko |
| S. a. argus | Common Ocellated Gecko |
| Sphaerodactylus elegans | Ashy Gecko |
| S. e. elegans | Cuban Ashy Gecko |
| Sphaerodactylus glaucus | Dwarf Gecko |
| Sphaerodactylus millepunctatus | Spotted Gecko |
| Sphaerodactylus notatus | Reef Gecko |
| S. n. notatus | Florida Reef Gecko |
| Sphenomorphus | Forest Skinks |
| Sphenomorphus assatus | Ground Skink |
| S. a. assatus | Red Forest Skink |
| S. a. taylori | Taylor's Forest Skink |
| Sphenomorphus cherriei | Brown Forest Skink |
| S. c. cherriei | Brown Ground Forest Skink |
| S. c. ixbaac | Ixbaac Brown Forest Skink |
| S. c. stuarti | Stuart's Brown Forest Skink |
| Sphenomorphus incertus | Stuart's Forest Skink |
| Tarentola | Wall Geckos |
| Tarentola annularis | Ringed Wall Gecko |
| Tarentola mauritanica | Moorish Wall Gecko |
| Thecadactylus | Turniptail Geckos |
| Thecadactylus rapicaudus | Tuniptail Gecko |
| Tupinambis | Tegus |
| Tupinambis merianae | Argentine Giant Tegu |
| Uma | Fringe-toed Lizards |
| Uma exsul | Fringe-toed Sand Lizard |
| Uma inornata | Coachella Valley Fringe-toed Lizard |
| Uma notata | Colorado Desert Fringe-toed Lizard |
| Uma paraphygas | Chihuahuan Fringe-toed Lizard |
| Uma rufopunctata | Yuman Fringe-toed Lizard |
| Uma scoparia | Mojave Fringe-toed Lizard |
| Urosaurus | Tree & Bush Lizards |
| Urosaurus auriculatus | Socorro Island Tree Lizard |
| Urosaurus bicarinatus | Tropical Tree Lizard |
| U. b. anonymorphus | Mittleman's Tree Lizard |
| U. b. bicarinatus | Carinate Tree Lizard |
| U. b. nelsoni | Nelson's Tree Lizard |
| U. b. spinosus | Spiny Tree Lizard |
| U. b. tuberculatus | Tubercular Tree Lizard |
| Urosaurus clarionensis | Clarion Island Tree Lizard |
| Urosaurus gadovi | Gadow's Tree Lizard |
| Urosaurus graciosus | Long-tailed Brush Lizard |
| U. g. graciosus | Western Long-tailed Brush Lizard |
| U. g. shannoni | Arizona Long-tailed Brush Lizard |
| Urosaurus irregularis | Mexican Brush Lizard |
| Urosaurus lahtelai | Baja California Brush Lizard |
| Urosaurus nigricaudus | Black-tailed Brush Lizard |
| Urosaurus ornatus | Ornate Tree Lizard |
| U. o. caeruleus | Blue Tree Lizard |
| U. o. lateralis | Mexican Tree Lizard |
| U. o. levis | Smooth Tree Lizard |
| U. o. ornatus | Texas Tree Lizard |
| U. o. schmidti | Big Bend Tree Lizard |
| U. o. schottii | Schott's Tree Lizard |
| U. o. symmetricus | Colorado River Tree Lizard |
| U. o. wrighti | Northern Tree Lizard |
| Uta | Side-blotched Lizards |
| Uta antiqua | San Lorenzo Islands Lizard |
| Uta encantadae | Enchanted Side-blotched Lizard |
| Uta lowei | El Muerto Side-blotched Lizard |
| Uta nolascensis | San Pedro Nolasco Side-blotched Lizard |
| Uta palmeri | San Pedro Martir Side-blotched Lizard |
| Uta squamata | Santa Catalina Side-blotched Lizard |
| Uta stansburiana | Common Side-blotched Lizard |
| U. s. elegans | Western Side-blotched Lizard |
| U. s. nevadensis | Nevada Side-blotched Lizard |
| U. s. stansburiana | Northern Side-blotched Lizard |
| U. s. stejnegeri | Eastern Side-blotched Lizard |
| U. s. taylori | Taylor's Side-blotched Lizard |
| U. s. uniformis | Plateau Side-blotched Lizard |
| Uta stellata | San Benito Island Lizard |
| Uta tumidarostris | Swollen-nosed Side-blotched Lizard |
| Varanus | Monitor Lizards |
| Varanus niloticus | Nile Monitor |
| Xantusia | Night Lizards |
| Xantusia arizonae | Arizona Night Lizard |
| Xantusia bezyi | Bezy's Night Lizard |
| Xantusia bolsonae | Bolson Night Lizard |
| Xantusia extorris | Durangan Night Lizard |
| Xantusia gracilis | Sandstone Night Lizard |
| Xantusia henshawi | Granite Night Lizard |
| Xantusia riversiana | Island Night Lizard |
| X. r. reticulata | San Clemente Night Lizard |
| X. r. riversiana | San Nicolas Night Lizard |
| Xantusia sanchezi | Sanchez's Night Lizard |
| Xantusia sherbrookei | Sherbrooke's Night Lizard |
| Xantusia sierrae | Sierra Night Lizard |
| Xantusia vigilis | Desert Night Lizard |
| X. v. gilberti | Baja California Night Lizard |
| X. v. vigilis | Desert Night Lizard |
| Xantusia wigginsi | Wiggins's Desert Night Lizard |
| Xenosaurus | Mexican Knob-scaled Lizards |
| Xenosaurus grandis | Knob-scaled Lizard |
| X. g. agrenon | Mountain Know-scaled Lizard |
| X. g. arboreus | Arboreal Knob-scaled Lizard |
| X. g. grandis | Mexican Knob-scaled Lizard |
| X. g. rackhami | Rackham's Knob-scaled Lizard |
| X. g. sanmartinensis | San Martin Knob-scaled Lizard |
| Xenosaurus newmanorum | Newman's Knob-scaled Lizard |
| Xenosaurus penai | Pena's Knob-scaled Lizard |
| Xenosaurus phalaroanthereon | Chin Spotted Knob-scaled Lizard |
| Xenosaurus platyceps | Flathead Knob-scaled Lizard |
| Xenosaurus rectocollaris | Pallid Knob-scaled Lizard |