Mask Limpet on the move

Biology/Natural History: This large, common intertidal species is negatively phototactic, so they are usually in crevices or on the underside of boulders during the day. It is commonly found on the roofs of sea caves. They come out to feed at night. It is one of the largest limpets that can be found in the intertidal here in the Pacific Northwest (though it does not get as large as the owl limpet, Lottia gigantea, which is found further south). The white spots on the shell are translucent, and may.. more