The Millipede's Four Penises (IMAGE) Pensoft Publishers Caption The new millipede's four penises. The ninth and tenth pair of legs of Illacme tobini are used as copulatory devices to transfer sperm to the female. Credit Paul Marek, Virginia Tech 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.