1) Earless lizards 2) Genus holbrookia 3) Reptile genus 4) Reptile of the United States 
Holbrookia is a genus of earless lizards, known commonly as the lesser earless lizards, which contains three recognized species found throughout the southwestern and central United States and northern Mexico. They are characterized by having no external ear openings, presumably to prevent sand from entering their bodies when they are digging. The ...
[n] - earless lizards
genus Holbrookia noun earless lizards