Siphonosphaera

Siphonosphaera is a genus of radiolarians. The genus contains bioluminescent species. It is a genus of colonial radiolarians (as opposed to solitary).

Species
The following species are recognized:
 * Siphonosphaera hippotis
 * Siphonosphaera magnisphaera Takahashi, 1991
 * Siphonosphaera martensi Brandt, 1905
 * Siphonosphaera polysiphonia Haeckel, 1887
 * Siphonosphaera socialis Haeckel, 1887