I'm hoping some of my blog readers may be able to direct me to decent links about these 5-plated flattened barnacles I found attached to the holdfast of a bull kelp (Nereocystis luetkeana). My best guesses would be first Lepas pacifica and second possibly Lepas anatifera. However, my main issue with these IDs is the plates are not primarily white. Does the color change as the barnacle ages? Also, there are other Lepas spp. that are not readily found pictured online. It was amazing to watch these open up to show their feathery appendages and wave around on their translucent stalks (not to be confused with the caramel-colored haptera of the kelp). Click on the pictures to see them up close.