books.google.co.nz - The cookie cutter shark lives in the deep Gulf, looks like an Italian sausage with bulging eyes, and glows in the dark. It feeds by attaching itself to a sperm whale and gnawing hunks of flesh. Often misidentified as a shark, the smalltooth sawfish is really a ray and may be in danger of disappearing...http://books.google.co.nz/books/about/Sharks_Skates_and_Rays_of_the_Gulf_of_Me.html?id=hlTvq3bSvzcC&utm_source=gb-gplus-shareSharks, Skates, and Rays of the Gulf of Mexico
