OK so I googled "Lampris guttatus" and found that it is Swedish and lampris means glossy and guttatus is spotted I looked at this one site its was in Swedish so i went to the Google translator and pasted the site into translate web site
http://translate.google.com/translate?u=http%3A%2F%2Fhem.passagen.se%2Fkent.an dersson%2Fglansfisk.htm&sl=sv&tl=en&hl=en&ie=UTF-8. It gives some information on this fish. It is also known as a Opah or moonfish.
edit: the word is not Swedish sorry, but I found this site and it has a picture of the fish next to a guy it is huge!!It also talks about how the meat of the fish tastes. Take a look at this it gives some perspective. I know if i saw this fish in the water i would freak out!