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,
Anatolian rock lizard Anatolian rock lizard The Anatolian rock lizard ("Lacerta anatolica") is a species of lizard in the family Lacertidae. It is found in western Anatolia and on islands off the coast, where its natural habitats are temperate forests and rocky areas. A common species, the IUCN has listed it as being of "least concern". This lizard grows to a snout-to-vent length of about with a tail twice as long as its body. The head and body are somewhat flattened and the markings rather variable. The basal colour is dark olive-brown and there are usually two series of pale dorso-lateral spots which