Gonyaulax polygramma
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Fig. 2. SEM. Lateral ventral view. Transverse and longitudinal flagella present. One antapical spine present. TF=transverse flagellum; LF=longitudinal flagellum.

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Fig. 3. SEM. Dorsal view. Hypotheca truncate with straight sides. Three antapical spines present (arrows): 1 large and 2 small.

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Fig. 4. LM. Ventral view. Conspicuous longitudinal ridges and one long antapical spine.

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Fig. 5. LM. Dorsal view: longitudinal ridges.

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Fig. 6. Line drawing.

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Fig. 7. Line drawing.

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