<i>Gambusia quadruncus</i> Gonopodium (IMAGE) North Carolina State University Caption A magnified view of the four hooked genitalia of the newly identified fish species Gambusia quadruncus. Credit Brian Langerhans, NC State University 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.