Since having gooseneck barnacles in Brittany last year I had been trying to look for them in the northwest US. I have seen pictures of them from the west coast of Vancouver Island. When I visited Tofino I was told by a First Nation coast guard that they were not in season, though combing the shore at low tide I found some drift wood studded with little babies on them.
The barnicles I had were served cold, in clumps, boiled in sea water. They tasted as good as geoduck, but much smaller (about an inch to two) and instead of the mouth part being hyprrthrophied as in geoduck, these barnicles have their attachment 'legs' enlarged, which is what are eaten.
Does anyone know where I can find some of these in N America?