<i>Polyonyx Socialis</i> (IMAGE) Smithsonian Tropical Research Institute Caption Polyonyx socialis inhabits the compact tube-like shelters built by the polychaete worm, Chaetopterus sp., often sharing it with the larger porcelain crab species, Polyonyx heok. Credit T. Britayev and D. Martin 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.