Seen on Biological Inventory Team Herp Survey.
DOR adult Male; elevation 3425.2 feet; moon waning crescent; sky condition clear; pressure 29.84 inHg; humidity 43 percent. Salvaged under permit and deposited with Texas Natural History Collections at University of Texas--Austin.
The roundtail horned lizard (Phrynosoma modestum) is one of the smaller species of horned lizard. Their specific epithet is from the Latin word modestum, meaning modest or calm. They are found in the United States, in western Texas, New Mexico eastern Arizona, southeastern Colorado and eight states in northcentral Mexico where they are referred to as "tapayaxtin".