Craig Miller is an experienced diver in the Pacific Northwest who took this amazing video of a Sixgill Shark (Hexanchus griseus) in Puget Sound, a close ‘cousin,’ if you will, to the Sevengill sharks we’ve been seeing recently here in San Diego (Notorynchus cepedianus), but which normally inhabits much deeper waters.
For more of his videos, see: http://www.youtube.com/user/sciencediver1