Coral-Dwelling Crab (image) Smithsonian Caption This is Trapezia serenei, a tiny coral-dwelling crab. Credit Photos courtesy Seabird McKeon Usage Restrictions Please include photo credit when using. 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.