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The species now known as Rhabdonella spiralis was described by Hermann Fol based on specimens from the Bay of Villefranche. Drawing on the left is from his 1881 publication (available from the Aquaparadox website: Classic Taxonomic Monographs). Arrow on the inset of Villefranche from the late 1800's shows the Lazaret where Fol had his laboratory.
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Specimen from the BOUM cruise
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Rhabdonella elegans from Station 76 of the Tara Oceans Expedition
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Rhabdonella elegans (Jörgensen 1924) from station 58 (Mozambique Channel) of the Tara Oceans Expedition. Formalin-preserved specimen.
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Another Rhabdonella elegans (Jörgensen 1924) from station 58 (Mozambique Channel) of the Tara Oceans Expedition. Formalin-preserved specimen.
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Rhabdonella indica from Station 52 of the Tara Oceans Expedition.
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Rhabdonella indica from Station 64 of the Tara Oceans Expedition
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Hermann Fol's drawing from the original description (1881) with his corrected dimensions (1884). False brown color added to the ciliate cell
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Rhabdonella amor was originally described by Cleve (1899) as Cyttarocylis amor
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Specimen from the Rade de Villefranche. Lugol's-fixed, z-stack of images made using a 10x objective.
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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.
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Hermann Fol's drawing from the original description (1881) with his corrected dimensions (1884). False brown color added to the ciliate cell
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From the Bay of Villifranche. The large conical things are tintinnids, the smaller round things are dinoflagellates, the thin stick is a diatom.
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Drawing from original description of Rhabdonella spiralis by Eugen Jrgensen in 1924. Dimensions added from the text description.
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Rhabdonella elegans (Jrgensen 1924) from station 58 (in the Mozambique Channel, June 2010) of the Tara Oceans Expedition. Formalin-preserved specimen.
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