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Originally described by Ehrenberg under the name Stylonychia appendiculata.
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Undella (un-dell-a) is a tintinnid ciliate, in which the ciliate lives in a lorica. Species of Undella have a simple lorica, no adhering material, pedicels etc. The cell has contracted into the lorica, but the cilia of the adoral zone of membranelles are evident. Phase contrast.
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Originally described by Ehrenberg under the name Oxytricha pullaster.
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Dorsal view of Halteria oblonga (Kellicott, 1885;Kahl,1932), a spirotrich ciliate. The body is slightly elongate, rounded posteriorly and truncate anteriorly. There is a prominent anterior wreath of adoral membranelles that winds clockwise into the funnel-shaped peristome (seen in this image). The somatic ciliature is reduced to widely spaced longitudinal files of stout double cilia. The posterior cilia are longer with a characteristic J-shape. These trail behind the organism during swimming, which is accomplished by the rapid beating of the AZM. The single peripheral contractile vacuole is located in the anterior 1/3 adjacent to the oral aperture. The single spheroid granular macronucleus and single round micronucleus are seen posterior to the contractile vacuole. Although Kahl (I. Wimpertiere oder Ciliata. 3. Spirotricha pp. 505-506, Gustav Fischer Verlag, 1932) describes endosymbiotic zoochlorellae, at least some of the algae in these individuals appear to have been ingested. Collected from organically enriched freshwater pond near Boise, Idaho June 2003. DIC optics.
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Originally described by Ehrenberg under the name Oxytricha rubra.
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This tintinnid was found in a sample from the Eastern Mediterrean Sea in September
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Protocruzia (pro-toe-cruise-ee-a) A drop-shaped ciliate with a short Adoral Zone of Membranelles leading to the mouth. Conventional cilia over the rest of the body propel the cell through the water. Consumes bacteria. This genus has a special status in the ciliates because it has a distinctive organization of the its nuclei, and seems to be at the base of the spirotrichs. Phase contrast.
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Ventral view of Aspidisca lynceus (MUELLER,1773) EHRENBERG, 1830.Collected from a freshwater irrigation canal in Boise,Idaho December 2007.DIC
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Uronychia setigera.
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Aspidisca polystyla.
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Tintinnopsis davidoffi.
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Diophrys appendiculatus.
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Strombidium caudalum.
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A conjugating pair of Acanthostomella norvegica from the Chukchi Sea in 2012. Z stack of images made with a 60x objective, DIC optics, lugol's preserved specimens.
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, Catalunya, Espaa
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From the Bay of Villefranche in December 2013, lugol's-fixed specimen, Z-stack of images made using a 60x objective and DIC optics.
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Favella Ehrenbergii (as Tintinnus ehrenbergii) based on specimens found near Bergen, Norway; text is on pp 203-204. Plate 8 legend states that the drawings are of the same individual: the cell extended vibrating its cilia, the cell contracted within the lorica. 'vc' denotes contractile vacuole and 'w' 'anus' or cytoproct. From Claparde, E., Lachmann, J. 1858-1860. Etudes sur les infusoires et les rhizopodes. Mmoires de l'instut Genevois, 5, 6 & 7.
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Los Cotos, Comunidad de Madrid, Espaa
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A living specimen retracted into its lorica (shell) and an empty lorica. From the Bay of Villefranche. Z-stack of photomicrographs made using a 20x objective and DIC optics.