Ryan Collister:
Texas Alligator Lizard, Gerrhonotus infernalis
Ryan Collister:
Barking Frog, Craugastor augusti
Ryan Collister:
Barking Frog, Craugastor augusti
Ryan Collister:
Mottled Rock Rattlesnake, Crotalus lepidus lepidus
Ryan Collister:
Mottled Rock Rattlesnake, Crotalus lepidus lepidus
Ryan Collister:
Broad-Banded Copperhead, Agkistrodon contortrix laticinctus
Ryan Collister:
Sonoran Lyre Snake, Trimorphodon biscutatus
Ryan Collister:
Sonoran Lyre Snake, Trimorphodon biscutatus
Ryan Collister:
Couch's Spadefoot, Scaphiophus couchii
Ryan Collister:
California Kingsnake, Lampropeltis getula californiae
Ryan Collister:
Yarrow's Spiny Lizard, Sceloporus jarrovi
Ryan Collister:
Yarrow's Spiny Lizard, Sceloporus jarrovi
Ryan Collister:
Sonoran Mountain Kingsnake, Lampropeltis pyromelana
Ryan Collister:
Sonoran Mountain Kingsnake, Lampropeltis pyromelana
Ryan Collister:
Sonoran Mountain Kingsnake, Lampropeltis pyromelana
Ryan Collister:
Crevice Spiny Lizard, Sceloporus poinsettii
Ryan Collister:
Texas Spiny Softshell Turtle, Apalone spinifera emoryi
Ryan Collister:
Mottled Rock Rattlesnake, Crotalus lepidus lepidus - Davis Mountains
Ryan Collister:
Canyon Treefrog, Hyla arenicolor
Ryan Collister:
Mexican Hognose Snake, Heterodon kennerlyi
Ryan Collister:
Trans-Pecos Copperhead, Agkistrodon controtrix pictigaster
Ryan Collister:
Trans-Pecos Rat Snake, Bogertophis subocularis
Ryan Collister:
Texas Longnose Snake, Rhinocheilus lecontei
Ryan Collister:
Banded Rock Rattlesnake, Crotalus lepidus klauberi (Franklin Mountains, El Paso)
Ryan Collister:
Greater Short-Horned Lizard, Phrynosoma hernandesi
Ryan Collister:
Greater Short-Horned Lizard, Phrynosoma hernandesi
Ryan Collister:
Prairie Rattlesnake, Crotalus viridis
Ryan Collister:
Western coachwhip, Masticophis flagellum testaceus
Ryan Collister:
Prairie Rattlesnake, Crotalus viridis
Ryan Collister:
Green Sea Turtle, Chelonia mydas
