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 74QWT 1048817 Langerhans, 1879 Langerhans 1879 Polychaeta Syllidae Opisthosyllis CoL Animalia Opisthosyllis brunnea Phyllodocida 0 20997 Annelida species brunnea  Notes Reported from Greece by Faulwetter et al. (2011a)and Keklikoglou et al. (2013). Widely distributed in the Mediterranean ( Musco and Giangrande 2005). Considered cosmopolitan, but Paresque et al. (2016)found morphological differences between specimens from different localities and raise the possibility of Opisthosyllis brunneaconstituting a species complex.