<em>P. paradoxus</em> Roundworm (IMAGE) Pensoft Publishers Caption This is a SEM picture of the lip region of a female P. paradoxus roundworm. Credit Vlada K. Peneva Usage Restrictions CC-BY 4.0 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.