Climacosphenia

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

{{Automatic taxobox

| image = Climacosphenia moniligera.jpg

| image_upright = 0.4

| image_alt = "Climacosphenia moniligera", section of upper portion of cell to show the perforated septum (s). By George Stephen West after Otto Friedrich Müller.

| image_caption = Climacosphenia moniligera, section of upper portion of cell to show the perforated septum (s). By George Stephen West after O. Müller.

| taxon = Climacosphenia

| authority = Ehrenberg, 1841Ehrenberg, C.G. (1843). Verbreitung und Einfluss des mikroskopischen Lebens in Süd-und Nord-Amerika. Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin 1841: 291-466, pls 1-4.

| subdivision_ranks = Species

| subdivision =

• Climacosphenia australis Kützing, 1844
• Climacosphenia catena Shaboldt
• Climacosphenia elegans Mereschkowsky
• Climacosphenia elongata Mereschkowsky
• Climacosphenia moniligera Ehrenberg, 1843
• Climacosphenia siciliana Mereschkowsky
• Climacosphenia truncata Hustedt ex Simonsen Mereschkowsky

}}

Climacosphenia is a genus of marine pennate diatoms in the order Climacospheniales.