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 67KS7 2803289 Southern, 1914 Southern 1914 Polychaeta Spionidae Aonides CoL Animalia Aonides paucibranchiata Spionida 0 20997 Annelida species paucibranchiata  Notes Identifications of Greek specimens are based on descriptions of Fauvel (1927)and may have been easily confused with Aonides oxycephala(Sars, 1862) or other similar species. According to a note in Fauvel (1927), this small sized species could be a juvenile form of Aonides oxycephala, differing from it mainly by the smaller size, the number of gills and the smaller sized pygidial cirri, while the tridentate ventral hooks could be in fact a post-larval character, frequently observed in the Spionidae. Besides, the number of branchiae and the range of the ventral hooks may follow an intraspecific variation ( Ramos 1976a, Johnson 1984and personal observations from Greek material). According to F. Gravina and A. Somaschini (pers. comm.), it is a rare species.