Umbellisyllis clavata Virchowia clavata 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 5BJHX 199474 Langerhans, 1879 Langerhans 1879 Polychaeta Syllidae Virchowia CoL Animalia Virchowia clavata Phyllodocida 0 20997 Annelida species clavata   Umbellisyllis clavata(Langerhans, 1879) | Virchowia clavataLangerhans, 1879  Notes Reported from Greece by Simboura (1996)and Faulwetter et al. (2011a). In the Mediterranean also known from Spain ( San Martin2003), Italy ( Castelli et al. 2008) and France ( Nygren and Pleijel 2010), otherwise known only from Madeira.