Gila monster Gila monster The Gila monster ("Heloderma suspectum", ) is a species of venomous lizard native to the southwestern United States and northwestern Mexican state of Sonora. A heavy, typically slow-moving lizard, up to long, the Gila monster is the only venomous lizard native to the United States and one of only two known species of venomous lizards in North America, the other being its close relative, the Mexican beaded lizard ("H. horridum"). Although the Gila monster is venomous, its sluggish nature means it represents little threat to humans. However, it has acquired a fearsome reputation, and is sometimes killed despite
Short-tailed horned lizard Mexican states of Puebla and Oaxaca. It may also inhabit Veracruz. Short-tailed horned lizard The short-tailed horned lizard ("Phrynosoma braconnieri" ) is an uncommon species of horned lizard endemic to Mexico. It has a very distinct, shortened tail, which is sometimes not apparent. The specific epithet, "braconnieri", is in honor of French naturalist Séraphin Braconnier. "P. braconnieri" has a very short tail relative to its body length, the shortest of the horned lizards, or indeed of any lizard, thus its common name. "P. braconnieri" inhabits pine-oak woodland and xeric thorn-scrub. It can also be found in corn fields or other