Family Agamidae

agamas

Family Chamaeleonidae

chameleons

Family Iguanidae

iguanas

Family Crotaphytidae

collared and leopard lizards

Family Phrynosomatidae

horned lizards

Family Polychrotidae

anoles

Family Hoplocercidae

wood lizards

Family Tropiduridae

Neotropical ground lizards

Family Gekkonidae

geckos

Family Pygopodidae

legless lizards

Family Dibamidae

blind lizards

Family Cordylidae

spinytail lizards

Family Gerrhosaurida

plated lizards

Family Gymnophthalmidae

spectacled lizards

Family Teiidae

whiptails and tegus

Family Lacertidae

lacertids

Family Scincidae

skinks

Family Xantusiidae

night lizards

Family Anguidae

glass lizards

Family Anniellidae

American legless lizards

Family Xenosauridae

knob-scaled lizards

Family Helodermatidae

Gila monsters

Family Gerrhosaurida

earless monitor lizards

Family Varanidae

monitor lizards

Family Amphisbaenidae

worm lizards

Family Trogonophidae

shorthead worm lizards

Family Bipedidae

two-legged worm lizards

Family Acrochordidae

wart snakes

Family Aniliidae

false coral snakes

Family Anomochilidae

dwarf pipe snakes

Family Atractaspididae

African burrowing asp

stiletto snakes

Family Boidae

boas

anacondas

Family Bolyeriidae

Mauritius snakes

Family Colubridae

Colubrids

typical snakes

Family Cylindrophiidae

Asian pipe snakes

Family Elapidae

Cobras

coral snakes

mambas

sea snakes

Family Loxocemidae

Mexican pythons

Family Pythonidae

pythons

Family Tropidophiidae

dwarf boas

Family Uropeltidae

pipe snakes

shield-tailed snakes

Family Viperidae

vipers

pitvipers

Family Xenopeltidae

sunbeam snakes

Family Anomalepididae

primitive blind snakes

Family Leptotyphlopidae

slender blind snakes

thread snakes

Family Typhlopidae

blind snakes

typical blind snakes