The Texas horned lizard was most recently bestowed the honor as the Texas State Reptile in 1992.
Three species of horned lizard are found in Texas. The Texas horned lizard, which is found statewide except extreme east Texas, is the most common. The round-tailed and mountain short-horned horned lizards are restricted to the western portions of the state. Two of the three species of horned lizards (horned toads) occurring in Texas are protected from being taken, possessed, transported, exported, sold, or offered for sale. This protection is afforded under the same protected nongame (threatened) species regulations that protect the Texas tortoise.