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Die Wirbellosen des Weissen Meeres. Erster Band Taf. XXI . Wagn er Wirbellose des Weissen Meeres Fi Fi Fig Tai' XXI Willi Engelmaira Taf XXI Illustration biodiversitylibrary org title Wagner Nicolas Biodiversity Heritage Library Die Wirbellosen des Weissen Meeres Erster Band zoologische Forschungen an der Kste des