Mexican beaded lizard Mexican beaded lizard The Mexican beaded lizard ("Heloderma horridum") is a species of lizard in the family Helodermatidae, one of the two species of venomous beaded lizards found principally in Mexico and southern Guatemala. It and its congener (member of the same genus) the Gila monster ("Heloderma suspectum") are the only lizards known to have evolved an overt venom delivery system. The Mexican beaded lizard is larger than the Gila monster, with duller coloration, black with yellowish bands. As it is a specialized predator that feeds primarily upon eggs, the primary use of its venom is still a source of
Yellow-throated plated lizard of danger darts into its burrow, usually positioned under a bush. The female plated lizard lays clutches of four or five eggs in a shallow pit which she excavates. Yellow-throated plated lizard The yellow-throated plated lizard or plated lizard ("Gerrhosaurus flavigularis") is a species of lizard, which is about 45½ cm (18 inches) in total length (including tail) and lives in the grassland and scrub of Sudan, Ethiopia and along Eastern Africa down to South Africa. A ground-living and burrowing lizard, this species is usually greenish-grey or brownish, with a yellow (or sometimes red) throat and often a narrow stripe