In the last video from Town Beach in Sandwich, Massachusetts, I talked about the difference between Smooth Periwinkles and Northern Moon Snails. Here is a photo/close up of them so you can see the difference. You need to look under the shell to see that the Northern Moon Snail has that extra opening called the umbilicus.
Joanne is a New England based watercolor artist, writer, and the author/illustrator of children's books. She adores the seashore and loves to share that love by filming her beach combing adventures.