Japanese four-lined rat snake (IMAGE) The University of Hong Kong Caption A Japanese four-lined rat snake (Elaphe quadrivirgata) on Kozu Island. Credit Félix Landry Yuan 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.