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“Actinomma, a radiolarian with a shell and no mouth. A, whole animal with a portion of two spheres of shell removed. B, section, showing relation of protoplasm to the skeleton. c., central capsule; n, nucleus; p, protoplasm; o, openings through which the pseudopodia extend.” -Galloway, 1915


Thomas Walton Galloway Textbook of Zoology (Philadelphia, PA: P. Blakiston's Son & Co., 1915)


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