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 66RY9 194193 Malmgren, 1866 Malmgren 1866 Polychaeta Ampharetidae Anobothrus CoL Animalia Anobothrus gracilis Terebellida 0 20997 Annelida species gracilis  Notes Reported from worldwide locations but probably restricted to circumpolar areas; specimens from other regions may belong to other species ( Jirkov 2008).