I'd say it's an Dolphin Effigy Pendant then if it's a whole piece. Very nice find. You might want to keep a good eye on the site this came from for other jewelry items. There may very well be Beads and other Pendants in the area. They used a lot of Abalone Shell out your way so make sure you check every piece of that you see.
Congrats on your killer find and thanks for sharing the picture.