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A Checklist of the Herpetofauna of Guadalupe County, Texas


Gerald Keown

This checklist has been prepared based upon numerous field surveys done by the author between 1975 and 2007 in conjunction with a review of vouchered specimens in the Texas Cooperative Wildlife Collection at Texas A & M University and various literature records.

Guadalupe County, located east of San Antonio encompasses 714 square miles. The county is bisected by the Guadalupe River and consists of level to slightly rolling terrain with sandy loam and blackland soils. The county is between 450 and 700 feet above sea level and has an average annual rainfall of approximately 31 inches.

The following checklist contains 54 species (21 snakes, 11 lizards, 8 turtles, 11 frogs and toads, and 3 salamanders) that are known to occur in the county. There are several additional species that are known to occur in adjacent counties and that could be expected to possibly occur in Guadalupe County. Two species occuring in Guadalupe County are listed as threatened species and are protected under current state law.


South Texas Blind Snake, Leptotyphlops dulcis rubellum

Diamondback Water Snake, Nerodia rhombifer rhombifer

Blotched Water Snake, Nerodia erythrogaster transversa

Checkered Garter Snake, Thamnophis marcianus marcianus

Redstripe Ribbon Snake, Thamnophis proximus rubrilineatus

Lined Snake, Tropidoclonion lineatum

Eastern Hognose Snake, Heterodon platirhinos

Rough Green Snake, Opheodrys aestivus

Western Coachwhip, Masticophis flagellum testaceus

Yellowbelly Racer, Coluber constrictor flaviventris

Bull Snake, Pituophis catenifer sayi

Western Rat Snake, Pantherophis obsoletus

Southern Plains Rat Snake, Pantherophis emoryi meahllmorum

Desert Kingsnake x Speckled Kingsnake, Lampropeltis getula splendida x Lampropeltis getula holbrookia

Rough Earth Snake, Virginia striatula

Texas Longnose Snake, Rhinocheilus lecontei tessellatus

Flathead Snake, Tantilla gracilis

Texas Coral Snake, Micrurus tener tener * *

Broad-Banded Copperhead, Agkistrodon contortrix laticinctus * *

Western Cottonmouth, Agkistrodon piscivorus leucstoma * *

Western Diamondback Rattlesnake, Crotalus atrox * *


Mediterranean Gecko - Hemidactylus turcicus   (Introduced)

Northern Green Anole - Anolis carolinensis carolinensis

Northern Keeled Earless Lizard - Holbrookia propinqua

Texas Horned Lizard - Phrynosoma cornutum (Protected)

Texas Spiny Lizard - Sceloporus olivaceus

Prairie Lizard - Sceloporus consobrinus

Rosebelly Lizard - Sceloporus variabilis marmoratus

Eastern Tree Lizard - Urosaurus ornatus

Ground Skink - Scincella lateralis

Texas Spotted Whiptail Lizard - Cnemidophorus gularis gularis

Six-lined Racerunner - Cmenidophorus sexlineatus sexlineatus


Common Musk Turtle - Sternotherus odoratus

Yellow Mud Turtle - Kinosternon flavescens

Cagle's Map Turtle - Graptemys caglei

Texas River Cooter - Pseudemys texana

Red-eared Slider - Trachemys scripta elegans

Three-toed Box Turtle - Terrapene carolina triunguis

Ornate Box Turtle - Terrapene ornata ornata

Texas Tortoise - Gopherus berlandieri (Protected)


Blanchard's Cricket Frog - Acris crepitans blanchardi

Green Treefrog - Hyla cinerea

Gray Treefrog - Hyla versicolor

Spotted Chorus Frog - Pseudacris clarkii

Rio Grande Chirping Frog - Syrrhophus cystignathoides campi

Rio Grande Leopard Frog - Rana berlandieri

Southern Leopard Frog - Rana sphenocephala utricularius

Bullfrog - Rana catesbeiana

Great Plains Narrowmouth Toad - Gastrophryne olivacea

Woodhouse's Toad - Anaxyrus woodhousii woodhousii

Coastal Plain Toad - Ollotis nebulifer


Western Lesser Siren - Siren intermedia nettingi

Smallmouth Salamander - Ambystoma texanum

Western Slimy Salamander - Plethodon albagula


 * * = Venomous species.


Brown, Bryce C. 1950. An Annotated Check List of the Reptiles and Amphibians of Texas. Baylor University Press, Waco.

Dixon, James R. 2000. Amphibians and Reptiles of Texas, 2nd edition. Texas A & M Press, College Station.

Vermersch, Thomas, G., and Robert E. Kuntz. 1986. Snakes of South-Central Texas, lst edition. Eakin Press, Austin.

Vermersch, Thomas G. 1992. Lizards and Turtles of South-Central Texas. Eakin Press, Austin.

Werler, John E., and James R. Dixon. 2000. Texas Snakes, Identification, Distribution and Natural History. University of Texas Press, Austin.

Date submitted 11/13/07

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