Mexican beaded lizard generic name "Heloderma" means "studded skin", from the Ancient Greek words "hêlos" (ἧλος)—the head of a nail or stud—and "dérma" (δέρμα), meaning skin. Its specific name, "horrĭdum", is the Latin word meaning rough or rude. The four subspecies of beaded lizard, elevated to full species in 2013, are: Adult beaded lizards range from in length. They are substantially larger than the Gila monster, which only reaches lengths of . The snout-to-vent length of a beaded lizard averages . The average body mass of an adult beaded lizard is , about 45% heavier than the average mass of a gila monster,
Sagebrush lizard Sagebrush lizard The sagebrush lizard ("Sceloporus graciosus") is a common species of phrynosomatid lizard found at mid to high altitudes in the western United States of America. It belongs to the genus "Sceloporus" (spiny lizards) in the Phrynosomatidae family of reptiles. Named after the sagebrush plants near which it is commonly found, the sagebrush lizard has keeled and spiny scales running along its dorsal surface. The sagebrush lizard is similar to the western fence lizard, another "Sceloporus" species found in the western US. The sagebrush lizard can be distinguished from the western fence lizard in that the former is on