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(A) Mexican beaded lizard (Heloderma horridum exasperatum) (© David A. Warrell). (B) Mexican beaded lizard (Heloderma horridum horridum) (left) compared with Gila monster (Heloderma suspectum) (right) (courtesy of D. Ball and Zoological Society of London). (C) Gila monster (H. suspectum) (© David A. Warrell). (D) Gila monster (H. suspectum)
(© David A. Warrell).
