This is a Northern Caiman Lizard (Dracaena guianensis), and they are native to northern South American. They are also known as; Guyana Caiman Lizard, Guyana Caiman Lizard, Armoured Teyou, Croco-Teju, Four-foot Caiman, Guyanan Caiman Lizard, Jacuruxi, Dracène de Guyane (French), Lézard-caïman de Guyane (French), krokodilteju (Swedish).
The shield-tailed agama or turnip-tailed agama (Xenagama taylori), is a lizard found in Somalia and Ethiopia. The lizard still needs to shed some of the skin from its head, neck, upper bode, and its right leg.