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Arctic Dinophysis norvegica (empty!)from the Chukchi Sea in summer 2011.
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Plate 16. Dinophysis norvegica. Fig. 1. SEM: lateral view. Cell heavily areolated with pointed antapex and posterior protrusions (arrowheads). Ventral margin concave below left sulcal list (LSL)(arrow). Well developed cingular lists (CL) and LSL. Figs. 2-5. LM: lateral view. Fig. 2. Cell less robust than in Fig. 1; pointed antapex. Fig. 3. Robust cell with rounded antapex. Heavily areolated. Ventral margin straight below LSL (arrows). Fig. 4. Deepest point of cell through mid-point (dashed line), just above third rib of LSL. Fig. 5. Large posterior nucleus (n). Pointed antapex with posterior projections (arrows). Fig. 6. Line drawing. Right sulcal list depicted (RSL).
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Cell broadest rougly in the middle, posteriorly ending in a blunt antapex, length 56-70 microns.
