exqueeze me? baking powder? jackson's chameleon? moving on, here is my pic. Common name, FULL scientific name, brownie points for m/f, locale. Hint available if needed.
the name is no longer tropidurus, it is microlophus albemarlensis. However, that is the general name. Try for the subspecies based on island, by which the sex varies
however, using your incredible brain, you can identify the subspecies with one of the readily available dichotomous keys on the internet, which will take you between 2 and 30 minutes.