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Keywords from Image Description:
Die Kalkschwmme Plate . Tal HoL ckel del L't Aru Giksck uiJ uu Plate Illustration biodiversitylibrary org title Haeckel Ernst Biodiversity Heritage Library Die Kalkschwmme Eine Monographie von Ernst Haeckel Sponges Smithsonian Institution Libraries bhl page dc identifier org smithsonian institution libraries Information