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Rhabdonella amor was originally described by Cleve (1899) as Cyttarocylis amor
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Specimen from the Amundsen Sea, lugol's fixed.
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Most agree that C. convallaria and C. affinis are probably one single species. this is a Bouin's- fixed specimen from the Amundsen Sea.
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Specimen from the Amundsen Sea, Bouin's-fixed.
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Amphorellopsis quinquealata from the Admunsen Sea (Antarctica)
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Tintinnus quinquealata by Laackmann in 1907, now known as Amphorellopsis quinquealata.
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Amphorides laackmanni from near Villefranche-sur-Mer, found at 250 m depth on April 10 2017.
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The type species of the genus Ptychocylis. Drawing from Claparède, E., Lachmann, J. 1858-1860. Etudes sur les infusoires et les rhizopodes. Mémoires de l'instut Genevois, 5, 6 & 7. - PLate 8, fig. 14. The cell is in the early stage of cell division. 'VC' shows what was thought to be a contractile vacuole. Scale bar drawn from the diameter of 0.1 mm stated in the text (P 209).
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Drawings from Nordvquist 1890 (figs. 1 & 2) with dimensions as given in the text (pg. 126). Originally described as Codonella brandti.
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Lugol's-fixed specimen from a sample taken near Bergen, Norway
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From Villefranche-sur-Mer, sample taken on November 28 2017 from 30 m depth.
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The image on the left is transmitted light showing the cell inside the lorica or shell- and on the right an image with epifluorescence showing the cell macronucleus (green), an ingested chlorophyll-containing algal cell (red) and two Synechococcus cyanobacteria cells (yellow-orange).
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From Jörgensen 1890 (plate 1, fig. 6). Dimension from text on page 24.
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Ptychocylis acuta- Image of a Lugol's fixed specimen collected by Diane Stoecker in July 2009 from the Bering Sea.
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Drawing from Brandt's 1896 description.
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From the Chukchi Sea (Arctic) in 2020. Inset shows illustration from Brandt's 1896 description.
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Figure from Ostenfeld's 1899 description with dimensions shown as given in the text. Described by Ostenfeld as "Tintinnus urceolatus".
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Bierdermann's illustration from Plate 2, according to text (pg. 16-17), 90 µm long.
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Specimen from the Medit. Sea, lugol's-fixed
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