reptile genus - a genus of reptiles

family Helodermatidae, Helodermatidae - only known venomous lizards

Gila monster, Heloderma suspectum - large orange and black lizard of southwestern United States; not dangerous unless molested

beaded lizard, Heloderma horridum, Mexican beaded lizard - lizard with black and yellowish beadlike scales; of western Mexico