Eumeces Obsoletus

SKINKS

No lines on body

Eumeces Tetragammus

SKINKS

Light stripe above eye

Scincella Lateralis

SKINKS

No light stripe

Cnemidophorus Sexlineatus

STRIPED

WHIPTAILS

No spots and

granular scales

on back forelimbs

Cnemidophorus Laredoensis

STRIPED

WHIPTAILS

Moderately enlarged

forelimb scales & white,

tan, or green tail

Cnemidophorus Gularis

STRIPED

WHIPTAILS

Extremely enlarged

forelimb scales &

reddish/pinkish tail

Anolis Carolinensis

ANOLES

Primarily green

Elongated snout in line

that taper evenly with

rest of skull

Anolis Sagrei

ANOLES Brown anoles

Hemidactylus Turcicus

GECKOS

Bumpy skin,

no eyelids

Coleonyx Brevis

GECKOS

Striped skin,

eyelids

Crotaphytus Reticulatus

SMOOTH SKINNED

LIZARDS External ear openings

& dark spots on back

Cophosaurus Texanus

SMOOTH SKINNED

LIZARDS Black bars on ventral

side of tail

Holbrookia Propinqua

SMOOTH SKINNED

LIZARDS Tail length longer

than body length,

no ventral spots on

tail

Holbrookia Lacerta

SMOOTH SKINNED

LIZARDS Tail with ventral spots

Ctenosaura Pectinata

SPINY LIZARDS

Low crest of scales

down the back

(in Brownsville)

Phrynosoma Cornutum

SPINY LIZARDS

Large spines on head

Urosaurus Ornatus

SPINY LIZARDS

A fold across throat

Sceloporus Serrifer

SPINY LIZARDS

Distinct collar

Sceloporus Variabilis

SPINY LIZARDS

Pocket behind

hindlimbs

Sceloporus Grammicus

SPINY LIZARDS

Wavy lines on back,

no stripe on side

Sceloporus Undulatus

SPINY LIZARDS

Clearly defined light

stripe on side

Sceloporus Olivaceus

SPINY LIZARDS

Light stripe not

clearly defined

Ophisaurus Attenuatus

LEGLESS LIZARDS

Moveable eyelids