This photo shows the Green Iguana's pineal eye, which is also called a parietal eye, or third eye. It appears as a small oval gray dent in a centerline scale on top of the lizard's head. If you can imagine a line across the lizard's head from there rear of one eye to the rear of the other eye, the pineal eye will be behind that imaginary line, in the center of its head. Green Iguana (Iguana iguana), are native to South Mexico to South America and the Caribbean. They have been introduced from South America to Puerto Rico, South Florida, Rio Grande Valley of Texas, Hawaii, the U.S. Virgin Islands. They are also known as; Common Iguana, American Iguana, gallina de palo (Spanish), iguana comun (Spanish), Iguana verde (Spanish), iguane (French) iguane commun (French), iguane vert (French), Grüner Leguan (German), groen leguaan (Netherlands), gwo zandoli; léza (St. Lucia), grön leguan Sweden.
