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,
Sicilian wall lizard Sicilian wall lizard The Sicilian wall lizard ("Podarcis waglerianus") is a species of lizard in the family Lacertidae. Endemic to Italy, it occurs in Sicily and the Aegadian Islands. Its natural habitats are temperate forests, temperate shrubland, Mediterranean-type shrubby vegetation, temperate grassland, arable land, pastureland, and rural gardens. The IUCN does not consider it to be a threatened species. Three subspecies are recognized: "P. w. antoninoi", "P. w. marettimensis" and "P. w. waglerianus". The specific name, "waglerianus", is in honor of German herpetologist Johann Georg Wagler. The Sicilian wall lizard grows to a length of about with males being slightly