Acrosphaera is a radiolarian genus in the Collosphaeridae. The genus contains bioluminescent species. It is a genus of colonial radiolarians (as opposed to solitary).
Species The following species are recognized: Acrosphaera arktios (Nigrini, 1970) Acrosphaera cyrtodon (Haeckel) Strelkov & Reshetnyak, 1971 Acrosphaera lappacea (Haeckel) Johnson & Nigrini, 1980 Acrosphaera murrayana (Haeckel) Hilmers, 1906 Acrosphaera spinosa Caulet, 1986 Acrosphaera trepanata
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