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Fig 1: Gonyaulax polygramma Schematic diagram (ventral view) redrawn from Tomas et al. 1997.
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Goniodoma acuminatum.
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Two cells, two faces.
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Ceratium fusus.
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Ribadelago, Castille and Leon, Spain
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First depiction of the dinoflagellate now know as Ceratium fusus by Christian Ehrenberg in 1834 as Peridinium fusus.
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Ceratium furca from the Bay of Villefranche. Living cell, note that the trailing flagella was rotating.
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Illa de Arousa, A, Galicia, Spain
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First described by Paul Gourret in 1883 as Ceratium fusus, var. extensum. now known as Ceratium extensum or Neoceratium extensum
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Reboredo, Galicia, Spain
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Fig 1: Coolia monotis Schematic diagram (hypothecal view) redrawn from Tomas et al. 1997.
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G. spinifera cells are slightly longer than broad. The epictheca has convex sides and a small epical horn. The hypotheca has a 2-4 antapical spines. The sulcus extends almoust the whole length of the cell. The cingulum is deeply excavated and displaced by 2 or more widths. G. spinifera is sometimes confused with Gonyaulax digitale.
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San Martin De Castaneda, Castille and Leon, Spain
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From the Bay of Villefranche in December 2013
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First depiction of Ceratium furca was by Christian Ehrenberg in 1834 as Perdinium furca. Note the drawing of a rotating flagella.
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Illa de Arousa, A, Galicia, Spain
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Ceratium extensum (or Neoceratium extensum), the longest Ceratium species. Specimen from the Bay of Villefranche.
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Reboredo, Galicia, Spain
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Fig 2: Coolia monotis Schematic diagram (epithecal view) redrawn from Tomas et al. 1997
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Cells are elongate with a short apical horn and two distinct winged antapical spines. The left spine is longer than the right one. The epitheca is slightly larger than the hypotheca and the girdle is offset by 1-2 girdle widths.
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Ribadelago, Castille and Leon, Spain
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Illa de Arousa, A, Galicia, Spain
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Tarragona, Catalunya, Espaa