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,
Mosor rock lizard Mosor rock lizard The Mosor rock lizard ("Dinarolacerta mosorensis") is a species of lizard in the Lacertidae family. It is found in Bosnia and Herzegovina, Croatia, Serbia, and Montenegro. Its natural habitats are boreal forests, temperate forests, temperate shrubland, and rocky areas. It is threatened by habitat loss. The Mosor rock lizard is a flattened lizard with a long head and slender tail. It grows to a snout-to-vent length of about with a tail approximately twice as long. The dorsal surface is somewhat glossy and is brown, greyish-brown or olive-brown with darker mottling and speckling. The flanks are usually darker