Merman pictures

Hi, I've been trying for a while to find good, clear pictures of mermen. Any thoughts on where I can find any? I've been scouting all over the web, in books etc, but can't seem to find anything! He's gotta be a handsome bloke lol. Havent got a huge list of what it's got to look like, as I'd like a good base, and to be able to customise it from there really. If anyone has got any ideas on where to direct me, i'll be really greatful. Thanks :)