Climacostomidae

Description: English: Climacostomum illustration from Friedrich Stein, Der Organismus der Infusionsthiere, 1859. Date: 31 May 2012. Source: Der Organismus der Infusionsthiere, 1859. Author: Friedrich Stein.

Description: English: Climacostomum sp. with no chlorella. Possibly an aposymbiotic C. virens. Date: 15 October 2011. Source: Own work. Author: Deuterostome.

Summary.mw-parser-output table.commons-file-information-table,.mw-parser-output.fileinfotpl-type-information{border:1px solid #a2a9b1;background-color:#f8f9fa;padding:5px;font-size:95%;border-spacing:2px;box-sizing:border-box;margin:0;width:100%}.mw-parser-output table.commons-file-information-table>tbody>tr,.mw-parser-output.fileinfotpl-type-information>tbody>tr{vertical-align:top}.mw-parser-output table.commons-file-information-table>tbody>tr>td,.mw-parser-output table.commons-file-information-table>tbody>tr>th,.mw-parser-output.fileinfotpl-type-information>tbody>tr>td,.mw-parser-output.fileinfotpl-type-information>tbody>tr>th{padding:4px}.mw-parser-output.fileinfo-paramfield{background:#ccf;text-align:right;padding-right:0.4em;width:15%;font-weight:bold}.mw-parser-output.commons-file-information-table+table.commons-file-information-table,.mw-parser-output.commons-file-information-table+div.commons-file-information-table>table{border-top:0;padding-top:0;margin-top:-8px}@media only screen and (max-width:719px){.mw-parser-output table.commons-file-information-table,.mw-parser-output.commons-file-information-table.fileinfotpl-type-information{border-spacing:0;padding:0;word-break:break-word;width:100%!important}.mw-parser-output.commons-file-information-table>tbody,.mw-parser-output.fileinfotpl-type-information>tbody{display:block}.mw-parser-output.commons-file-information-table>tbody>tr>td,.mw-parser-output.commons-file-information-table>tbody>tr>th,.mw-parser-output.fileinfotpl-type-information>tbody>tr>td,.mw-parser-output.fileinfotpl-type-information>tbody>tr>th{padding:0.2em 0.4em;text-align:left;text-align:start}.mw-parser-output.commons-file-information-table>tbody>tr,.mw-parser-output.fileinfotpl-type-information>tbody>tr{display:flex;flex-direction:column}.mw-parser-output.commons-file-information-table+table.commons-file-information-table,.mw-parser-output.commons-file-information-table+div.commons-file-information-table>table{margin-top:-1px}.mw-parser-output.fileinfo-paramfield{box-sizing:border-box;flex:1 0 100%;width:100%}} Description: English: Climacostomum sp. with no algal symbionts. Français : Climacostomum sp. sans algue symbiote. Date: 15 October 2011. Source: Own work. Author: Deuterostome.

Description: English: Climacostomum virens (a heterotrich ciliate), browsing. Date: 15 October 2011. Source: Own work. Author: Deuterostome.

Description: English: Climacostomum virens, as depicted by Alfred Kahl in Wimpertiere oder Ciliata. Date: 28 May 2012. Source: Wimpertiere oder Ciliata. Author: Alfred Kahl.

Description: English: Climacostomum virens, collected from Turtle Pond in Wakefield, Quebec. Date: 28 May 2012. Source: Own work. Author: Deuterostome.

Portrait of Climacostomum virens, a large spirotrich ciliate containing zoochlorellae. Body flattened, truncate anteriorly and rounded posteriorly. Uniform ciliation. Prominent adoral zone of membranelles along left border of peristome. Macronucleus ribbon-like (not well seen in this image). Posterior contractile vacuole has two long collecting canals. From freshwater pond near Boise, Idaho. Oblique illumination.

Climacostomum is a ciliate that feeds on detritus and algae using the specialized feeding cilia at the front of the cell (top of image). This species also contains symbiotic algae.

Climacostomum (clee-mack-ost-owe-mum) virens is coloured green by endosymbiotic algae. The contractile vacuole is located in the posterior end of the cell. The buccal cavitiy with the adorale membranelle is visible at the anterior. Differential interference contrast.

Climacostomum (clee-mack-ost-owe-mum) virens is coloured green by endosymbiotic algae. The contractile vacuole is located in the posterior end of the cell. Squashed specimen, a long meandering macronucleus is visible. Differential interference contrast.

Ventral view of the heterotrich ciliate, Climacostomum virens (Ehrenberg, 1838) Stein, 1859. Collected from a slow-flowing temporary freshwater stream near Boise, Idaho. May 2005. DIC.

Ventral infraciliature of the heterotrich ciliate, Climacostomum virens (Ehrenberg, 1838) Stein, 1859. Silver carbonate stain (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Brightfield.

Lateral view of infraciliature of the heterotrich ciliate, Climacostomum virens (Ehrenberg, 1838) Stein, 1859. Silver carbonate stain (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Brightfield.

Vermiform macronucleus of the heterotrich ciliate, Climacostomum virens (Ehrenberg, 1838) Stein, 1859. Collected from a slow-flowing temporary freshwater stream near Boise, Idaho. Methyl green pyronin stain (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Brightfield

Heterotriuch ciliate with anterior adoral zone of membranelles leading into the curving buccal cavity. Cytoplasm with endosymbiotic eukaryotic algae. Differential interference contrast.

Originally described by Ehrenberg under the name Spirostomum virens.

Originally described by Ehrenberg under the name Spirostomum virens.

Originally described by Ehrenberg under the name Spirostomum virens.