Northwest Dive Club

Kathy and I found this guy at Three Tree North this morning. I don't know that I've ever seen anything like it before. Here are several pictures. My books are packed up in preparation for our upcoming move, so I don't have a way to look it up. Help?
A fairly basic shot A look at the underside. This was actually a piece of it that came off while it was running around. I got this one as it was going past me, trying to get a shot of its feet-things.
http://s445.photobucket.com/albums/qq17 ... t=worm.mp4
And here's a short video of it zipping around trying to find a hiding place. This guy could MOVE!

So, can somebody tell me what it is?
Thanks!

I checked in the Marine Life of the Pacific Northwest book and it appears to be a giant fleshy scaleworm (Hololepida magna).
Could be wrong but it sure looks similar.

Sounds good to me. The "giant" and "fleshy" sure apply. Thanks!

That's probably right. Really nice find Dave!