Daniel F. Hughes, Ph.D.
Horned Lizards
Regal Horned Lizard
Phrynosoma solare
Greater Short-horned Lizard
Phrynosoma hernandesi
Texas Horned Lizard
Phrynosoma cornutum
Roundtail Horned Lizard
Phrynosoma modestum
Greater Short-horned Lizard
Phrynosoma hernandesi
Regal Horned Lizard
Phrynosoma solare