The common periwinkle is a small marine snail found up and down the coasts of New England and up into Nova Scotia. These small shore snails are mostly found on rocks, stones, or pilings between high and low tide markers. Mar Seafood acquires all of its periwinkles from Nova Scotia, off of Brier Island, where they are hand picked for the best possible quality. From this point, they are shipped, cleaned and placed in mesh bags and sold as a half bushel or a full bushel.