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Goniodoma acuminatum.
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Two cells, two faces.
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Ceratium fusus.
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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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First described by Paul Gourret in 1883 as Ceratium fusus, var. extensum. now known as Ceratium extensum or Neoceratium extensum
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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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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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Ceratium extensum (or Neoceratium extensum), the longest Ceratium species. Specimen from the Bay of Villefranche.
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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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Ceratocorys (serr-at-owe-core-iss) horrida, a marine autotrophic dinoflagellate occurring in the plankton. Body armoured with projecting spines, some with wings. The girdle is edged with two projecting and ribbed flanges. Mostly from warm waters. Differential interference microscopy.
data on this strain.
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Ceratocorys (serr-at-owe-core-iss) horrida, a marine autotrophic dinoflagellate occurring in the plankton. Body armoured with projecting spines, some with wings. The girdle is edged with two projecting and ribbed flanges. Mostly from warm waters. Differential interference microscopy.
data on this strain.
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Ceratocorys (serr-at-owe-core-iss) horrida, a marine autotrophic dinoflagellate occurring in the plankton. Body armoured with projecting spines, some with wings. The girdle is edged with ridged flanges, one visible here at the top of the image. Mostly from warm waters. Differential interference microscopy.
data on this strain.
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Ceratocorys (serr-at-owe-core-iss) horrida, a marine autotrophic dinoflagellate occurring in the plankton. This image shows the plastid, as well as the nucleus with the condensed chromosomes. Differential interference microscopy.
data on this strain.
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Ceratocorys (serr-at-owe-core-iss) horrida, a marine autotrophic dinoflagellate occurring in the plankton. Body armoured with projecting spines, some with wings. The girdle is edged with two projecting and ribbed flanges, shown in this view from the apex. Mostly from warm waters. Differential interference microscopy.
data on this strain.
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Ceratocorys horrida.
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Ceratium (serr-at-ee-um) longipes, a representative of a large and distinctive genus of marine autotrophic dinoflagellates - made distinctive by having one anterior projection and two or as in this case three, posterior horns. Phase contrast microscopy.
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Ceratium (serr-ate-ee-um), dinoflagellate, the chloroplasts of which are evident because they emit red light when illuminated with intense UV light. The UV light is filtered out so that only the red fluorescence is visible. This is a dinoflagellate. Fluorescence microscopy image by Dave Caron.
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Bright field portrait of the dinoflagellate Ceratium furca (Ehrenberg) Claparéde and Lachmann 1858, trailing flagellum can be seenb. From a freshwater pond near Boise, Idaho.
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C. furca is a species with strongly developed apical horns, the left antapical horn is twice as long as the right one. The epithecal plates arereticulated to form ridges This species forms blooms in summer/ autumn in the North and Irish Sea.
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