Description: Español: Ejemplares de Prosthiostomum siphunculus en la Ría de Arosa, España. Date: 2012. Source: https://zookeys.pensoft.net/articles.php?id=3776&display_type=list&element_type=8 Noreña C, Marquina D, Perez J, Almon B (2014) First records of Cotylea (Polycladida, Platyhelminthes) for the Atlantic coast of the Iberian Peninsula. ZooKeys 404: 1-22. doi: 10.3897/zookeys.404.7122. Author: Noreña C, Marquina D, Perez J, Almon B.