Marine snails 2 (IMAGE) University of Sheffield Caption Littorina snails are common on the rocky shores of Europe, the UK, and the East Coast of the USA Credit Daria Shipilina Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.