Laguna Beach Kelp Snail

A kelp snail (Norrisia norrisia) on kelp at Laguna Beach, California.  The body of the snail is bright orange while the shell is usually off white or brown.  These are very common to see while snorkeling or diving, just look closely at kelp.  The kelp twists with the waves, so keep looking if you don't see any.  The snails supposedly crawl up the kelp during the day, then down the kelp at night.  From time to time you can see them while tide pooling, but not very often.  I've never seen them on washed up kelp either, so they must know to find new kelp when that happens.