Scabbardfish (<i>Lepidopus fitchi</i>) (IMAGE) Emory Health Sciences Caption The scabbardfish (Lepidopus fitchi) is now the only fish known to have switched from ultraviolet to violet vision, or the ability to see blue light. Credit Carol Clark, Emory University Usage Restrictions None License Licensed content 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.