Super black Mexican beaded lizard. The big one is Lucifer and the girl in top of him is Toxic and Karma. (Heloderma horridum) is a large venomous reptile native to Mexico and Guatemala known for its bead like scales and black and yellow coloration and is one of only two venomous lizards in the world (the other being the Gila monster) These slow moving nocturnal lizards use their venom delivered through grooved teeth in the lower jaw primarily for defense and to subdue prey like eggs, small mamma