Nathan Shepard:
Crotalus atrox
Nathan Shepard:
Arizona elegans
Nathan Shepard:
Crotalus v. viridis
Nathan Shepard:
Gyalopion canum
Nathan Shepard:
Gyalopion canum
Nathan Shepard:
Gyalopion canum
Nathan Shepard:
Gyalopion canum
Nathan Shepard:
Sistrurus catenatus edwardsii (DOR)
Nathan Shepard:
Thamnophis marcianus
Nathan Shepard:
Thamnophis marcianus
Nathan Shepard:
Crotalus scutulatus
Nathan Shepard:
Crotalus scutulatus
Nathan Shepard:
Crotalus scutulatus
Nathan Shepard:
Crotalus scutulatus
Nathan Shepard:
Bufo cognatus
Nathan Shepard:
Bufo debilis
Nathan Shepard:
Bufo debilis calling (in-situ)
Nathan Shepard:
Bufo debilis (in-situ)
Nathan Shepard:
Crotalus atrox
Nathan Shepard:
Crotalus atrox
Nathan Shepard:
Coluber bilineatus
Nathan Shepard:
Coluber bilineatus
Nathan Shepard:
Crotalus pricei
Nathan Shepard:
Crotalus pricei
Nathan Shepard:
Crotalus pricei
Nathan Shepard:
Crotalus pricei
Nathan Shepard:
Crotalus pricei
Nathan Shepard:
Trimorphodon lambda
Nathan Shepard:
Coleonyx variegatus
Nathan Shepard:
Crotalus cerberus
