Actually it was Jeremy's frogfish, of Living Underwater, and Jeremy's finger too. When he called me over to shoot it, I could have sworn he wanted me to shoot a piece of algae. Not sure if he was the original finder or someone else had clued him in - of course he'd never tell First and only one I've experienced in Cozumel of any dimension.The largest one we've seen in Cozumel was about six inches long and we were able to locate it three years running although we had to look for it further and further south each year. Mossman's frogfish is really cryptic; unless it moved, I doubt I would have known it was a fish.