Some of the critters that you are most likely to see when you dive in Puget Sound (besides FOG and RAIN) are your friendly neighborhood Wolf Eel! 

Doesn't it just look like a big cuddly puppy?, or is that a big puppet?  We often refer to them as Muppets!

Wolf eels are actually quite friendly, and have really bad eye sight, so be sure to keep your fingers out of the way!

This is actually one of the first underwater pictures that I ever snapped, using a rented camera.  We dropped down and this Wolfie was sitting out on the bottom modeling for use.  I was amazed at how bright the picture turns out if you get just the right distance from the subject.

Another very common Puget Sound critter that hangs around for divers is the Ling Cod.   They can even get a bit aggressive when they are guarding their eggs (photo to the right) in the winter, but most will let a diver approach to within 2 - 3'.

Ling Cod can grow to almost 6' in length.

If you are trying to identify an unknown critter, take a look at the Northwest Diver Creature Feature.  Several of my photos are published as part of this database of Northwest Creatures.