Mexican beaded lizard beaded lizard under the Convention on International Trade in Endangered Species as an Appendix I animal, making it illegal to export the species. 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
The Lizard main units; the serpentinites, the "oceanic complex" and the metamorphic basement. Several nature sites exist on the Lizard Peninsula; Predannack nature reserve, Mullion Island, Goonhilly Downs, and the Cornish Seal Sanctuary at Gweek. An area of the Lizard covering is designated a national nature reserve because of its coastal grasslands and heaths and inland heaths. The peninsula contains 3 main Sites of Special Scientific Interest (SSSI), both noted for their endangered insects and plants, as well as their geology. The first is East Lizard Heathlands SSSI, the second is "Caerthillian to Kennack SSSI" and the third is West Lizard SSSI,