The shells of marine snails, especially those inhabiting the shallow depths of the tropical oceans, are often extremely colorful and have fascinated researchers for centuries. While warm colors, such as orange or red, are relatively common, intense cool colors, especially violet and blue, are uncommon in marine gastropod shells. Species showing vivid violet hues are rare, and those showing blue even more so. This image shows some of the most spectacular examples of these shells.
Find out more about this burgeoning area of research in the Journal of Molluscan Studies.
Image courtesy of Chong Chen, Department of Zoology, Merton College, University of Oxford. Do not reproduce without permission.