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 Manayunkia aestuarina (Bourne, 1883) Notes Questionable status. In the Mediterranean only reported from Greece ( Kisseleva 1961 , Diapoulis and Bogdanos 1983 ). Both Greek records are from a fully marine environment and therefore considered questionable by Arvanitidis (1994) , as the species usually occurs in brackish waters. However, Harris (1970) reports the species from non-brackish environments in the British Isles and assumes that it can tolerate full salinity at least during certain stages of its life cycle. Based on the geographic range of Manayunkia aestuarina , the Greek records must nevertheless be considered uncertain. Undescribed species of Manayunkia exist in Greece ( Chintiroglou et al. 2004 ) and the genus needs further study in the region.