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 1314-2828-5-20997 Sphaerosyllis gravinae Somaschini & San Martin , 1994 Notes New record for Greece. Two specimens, Elafonisi, Crete, 35°16'20.7"N , 23°32'15.9"E , 1 m depth, fine sand, collected in the framework of the MEDCORE project (unpublished data from Papageorgiou et al. 2006 ). Literature used for identification: Somaschini and San Martin (1994) . Type locality: Mediterranean (Tyrrhenian Sea).