Dermal Denticles on a Skate Tail (image) University of Cambridge Share Print E-Mail Caption Image of a row of jagged, tooth-like denticles running down the length of the skate trunk and tail. The denticles are the tooth-like organs arranged in a line above the vertebral column. Credit Andrew Gillis, Gillis Lab Usage Restrictions Please credit 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.