Polychaetes of Greece: an updated and annotated checklist Faulwetter, Sarah Simboura, Nomiki Katsiaras, Nikolaos Chatzigeorgiou, Giorgos Arvanitidis, Christos Biodiversity Data Journal 2017 5 20997 20997 4L65M 2738285 Berkeley & Berkeley, 1950 Berkeley & Berkeley 1950 Polychaeta Spionidae Polydora CoL Animalia Polydora spongicola Spionida 0 20997 Annelida species spongicola  Ecological interactions  Native status Non-native (questionable)  Notes Questionable status. In the Mediterranean only reported from Greece ( Arvanitidis 2000a). Originally described from Western Canada, distributed in the East and West Pacific. The species is associated with sponges, a habitat for polychaetes which is little investigated in Greece.