Siphonosphaera

{{Short description|Genus of single-celled organisms}}

{{Automatic taxobox

| image_caption = Siphonosphaera

| display_parents = 2

| taxon = Siphonosphaera

| authority = Muller 1858

| subdivision_ranks = Species

| subdivision = 5; see text

}}

Siphonosphaera is a genus of radiolarians.{{cite web |author=WoRMS |year=2010 |title=Siphonosphaera Muller 1858 |publisher=World Register of Marine Species |url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=412905 |accessdate=June 14, 2011}} The genus contains bioluminescent species.{{cite journal |last1=Herring |first1=Peter J. |title=Systematic distribution of bioluminescence in living organisms |journal=Journal of Bioluminescence and Chemiluminescence |date=1987 |issue=3|volume=1 |pages=147–163|doi=10.1002/bio.1170010303 |pmid=3503524 }}{{cite journal |author=Poupin J. |author2=Cussatlegras A.S. |author3=Geistdoerfer P. |year=1999 |title=Plancton Marin Bioluminescent: inventaire documenté des espèces et bilan des formes les plus communes de la mer d'Iroise |pages=64 pp, 1–11 planches |publisher=Ecole Navale, Laboratoire d'Océanographie |url=https://hal.archives-ouvertes.fr/hal-01074799/document |accessdate=March 25, 2019}} It is a genus of colonial radiolarians (as opposed to solitary).{{cite journal|last1=Latz|first1=Michael I.|last2=Frank|first2=Tamara M.|last3=Case|first3=James F.|last4=Swift|first4=Elijah|last5=Bidigare|first5=Robert R.|title=Bioluminescence of colonial radiolaria in the western Sargasso Sea|journal=Journal of Experimental Marine Biology and Ecology|volume=109|issue=1|year=1987|pages=25–38|issn=0022-0981|doi=10.1016/0022-0981(87)90183-3}}