Amphioxous (1 of 3) (image) University of California - San Diego Share Print E-Mail Caption Amphioxus fluorescence is only very intense in specific areas of the mouth. The remainder of the body shows less or no fluorescence. This discrepancy in fluorescence distribution is possible because the 16 GFPs of amphioxus have different fluorescent capacities. Credit Scripps Institution of Oceanography, UC San Diego Usage Restrictions None Share Print E-Mail 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.