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Ernst Haeckel: Die Radiolarien
Berlin, 1862

This volume has kindly been provided by Prof. Dr. Peter von Sengbusch (Institut für allgemeine Botanik, Hamburg, Germany).

© (of the HTML version) 1998 by Kurt Stüber.

Wiki: “The Radiolaria are protozoa of (diameter 0.1–0.2 mm) that produce intricate mineral skeletons, typically with a central capsule dividing the cell into the inner and outer portions of endoplasm and ectoplasm.”

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