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Authority

G.Karst. (Karsten, 1905: 78, pl. 5, figs 9, 9a)

Class

Diatomophyceae

Order

Centrales

Family

Coscinodiscaceae

Synonyms

N/A

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Basionym

N/A

Additional References

N/A

Description

Cells (presumably) discoid. Valves circular, 82–86 µm diameter. Areolation fine, radially fasciculate; marginal band of areolae 4–5 µm wide. Spines in 2 regular rows near the marginal band; spines of outer row longer than inner.

Distribution

Southern Ocean, Indian sector (Karsten, 1905).

Comments

Priddle & Fryxell (1985) reported and illustrated C. horridus from the Southern Ocean, but they noted that the material was probably referrable to Thalassiosira (Thalassiosiraceae).

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