Supplementary material 2 from: Mavraki D, Fanini L, Tsompanou M, Gerovasileiou V, Nikolopoulou S, Chatzinikolaou E, Plaitis W, Faulwetter S (2016) Rescuing biogeographic legacy data: The "Thor" Expedition, a historical oceanographic expedition to the Mediterranean Sea. Biodiversity Data Journal 4: e11054. https://doi.org/10.3897/BDJ.4.e11054

As the Darwin Core version of this dataset is rather complex in structure, this is a more user-friendly version of the occurrence records of the pelagic polychaetes of the "Thor" and other expeditions, digitized from Wesenberg-Lund (1939), in csv format (tab-delimited).