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Keywords from Image Description:
Die Radiolarien Rhizopoda radiata Ernst Haeckel Tafel . Die Radiolarien Rhizopoda radiata Ernst Haeckel Tafel Tafel Taf XII Thalassosphaera bifurca Hkl Zygostephanus Mlleri Hkl Dictyocha Messanensis Hkl Petalospyris arachnoides Hkl Spyridobotrys Trinacria Hkl Botryocampe hexathalamia Hkl Die Radiolarien Rhizopeda radiata