Collosphaera is a radiolarian genus in the family Collosphaeridae. The genus contains bioluminescent species. It is a genus of colonial radiolarians (as opposed to solitary).
Species The following species are recognized: Collosphaera armata Brandt Collosphaera confossa Takahashi, 1991 Collosphaera huxleyi Mueller, 1855 Collosphaera macropora Popofsky, 1917 Collosphaera polygona Haeckel, 1887 Collosphaera tuberosa Haeckel, 1887
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