Polychaetes of Greece: an updated and annotated checklist Author Faulwetter, Sarah Author Simboura, Nomiki Author Katsiaras, Nikolaos Author Chatzigeorgiou, Giorgos Author Arvanitidis, Christos text Biodiversity Data Journal 2017 5 20997 20997 http://dx.doi.org/10.3897/BDJ.5.e20997 journal article http://dx.doi.org/10.3897/BDJ.5.e20997 1314-2828--20997 Aonides paucibranchiata Southern, 1914 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 1984 and personal observations from Greek material). According to F. Gravina and A. Somaschini (pers. comm.), it is a rare species.