Snapping shrimp, Synalpheus (IMAGE) Columbia University Irving Medical Center Caption Snapping shrimp, Synalpheus, is a sponge-dwelling shrimp, many of whom are the size of a grain of rice. Credit Dustin R. Rubenstein 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.