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 Dodecaceria concharum Orsted , 1843 Notes Questionable status. Castelli et al. (2008) and Mikac (2015) consider the presence of the species in the Mediterranean uncertain as it may have been confused with Dodecaceria saxicola (Grube, 1855), Dodecaceria sextentaculata (Delle Chiaje, 1822), Dodecaceria fimbriata (Verrill, 1880) or Dodecaceria joubini Gravier, 1905. Several Greek specimens were examined by P.H. Gibson and differ from the northern European species; instead, different species (e.g. Dodecaceria joubini ) could be present in Greece (P.H. Gibson, pers. comm. in Simboura 1996 ). The identification of Dodecaceria species depends on reproductive characteristics ( Gibson 1978 ) but it is unknown which form was described by Orsted . Thus, identity of Dodecaceria concharum is confused and Orsted's original species is probably not valid due to an insufficient original description and loss of type material ( Gibson 2015 ). Neotypes were designated by Gibson and Heppell (1995) , but it is unclear whether these correspond to the original species of Orsted .