Ed-McNichol | Honey-Bear-Octo | Striped-Nudi | Unknown-Nudi | Unknown-Shrimp | Small-Sculpin | Alabaster | Brown-Rockfish | J-Fuscus | P-Pnt-Ferry | Unknown-with-Crab | Uncle-Pug | Doug-Marcoux | Email Peter
As with so much underwater, I have no idea what this is -- sponge of some kind?