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Die Wirbellosen des Weissen Meeres. Erster Band Taf. IV . Wagner Wirbellose dos Weissen Meeres Taf IV Verlag Willi Engelmaiui in Leipz iL Diuck Th Zell Lei Taf IV Illustration biodiversitylibrary org title Wagner Nicolas Biodiversity Heritage Library Die Wirbellosen des Weissen Meeres Erster Band zoologische Forschungen