Squid Skin (1 of 3) (IMAGE) University of California - Santa Barbara Caption This iridescent skin patch of the California market squid shows its dynamic iridocytes. The dark spots in the background are the pigment filled chromatophores. Credit UCSB 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.