I love to paint these 5 x 7 canvas panels! So much can be packed into a small space. In this painting I have depicted knobbed whelk, cerith snail, moon snails, Lewis moon snail, Colorful Atlantic Moon Snail and the Common Periwinkle. Here’s another fact about sea snails! They are all hermaphrodites! They are also predatory and carnivorous. Some whelks stick a part of their shells between the two sides of an oyster so that it cannot close and then they eat them by sucking out the meat with their hollow proboscis.