Late-Stage Skate Embryo (IMAGE) Marine Biological Laboratory Caption Skeletal preparation of a late-stage skate (Leucoraja erinacea) embryo. The gill arches and branchial rays sit on either side of the head, below the eyes. Credit Credit: J. Andrew Gillis Usage Restrictions Please use with proper credit. 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.