Reptiles

Alligator

Order: Crocodylia

Family: Alligatoridae

Alligator mississippiensis

Crocodile

Order: Crocodylia

Family: Crocodylidae

Crocodylus

western spiny tailed iguana

Order: Squamata

Family: Iguanidae

Ctenosaura pectinata

Order: Squamata

Family: Iguanidae

Ctensaura

Common collared lizard

order: squamata

family: Crotaphytidae

Crotaphytus collaris

long nosed leopard lizard

order: squamata

family: Crotaphytidae

Gambelia wislizenii

Texas banded gecko

order: squamata

family: Eublepharidae

Coleonyx brevis

cowles bunchgrass lizard

order: squamata

family: Phrynosomatidae

Sceloporus cowlesi

crevice spiny lizard

order: squamata

family: Phrynosomatidae

Sceloporus poinsetti

texas horned lizard

order: squamata

family: Phrynosomatidae

Phrynosoma cornutum

roundtail horned lizard

order: squamata

family: Phrynosomatidae

Phrynosoma modestum

greater earless lizard

order: squamata

family: Phrynosomatidae

Cophosaurus texanus

Ornate tree lizard

order: squamata

family: Phrynosomatidae

Urosaurus ornatus

great plains skink

order: squamata

family: Scincidae

Plestiodon obsoletus

Gerrhosaurus

order: squamata

family: Gerrhosauridae

common checkered whiptail

order: squamata

family: Teiidae

Aspidoscelis tesselatus

Clouded monitor

order: squamata

family: Varanidae

Varanus nebulosus

Gila monster

order: squamata

family: Helodermatidae

Heloderma suspectum

Anguis

Order: squamata

suborder: Amphisbaena

family: Anguidae