Roundscale Spearfish (image) Guy Harvey Research Institute, Nova Southeastern University Share Print E-Mail Caption The roundscale spearfish bears a close resemblance to the white marlin at first glance. A close examination of fins, scales, and DNA reveals a very different species. Credit George Hinteregger 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.