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Authority
Mangin (1926: 74, fig. 16II)
Class
Dinophyceae
Order
Gonyaulacales
Family
Gonyaulacaceae
Basionym
N/A
Synonyms
N/A
Additional References
Dodge (1989: 289, figs 2J, 22)
Description
Cells almost pentagonal, 20–30 µm long, 16–25 µm diameter. Thecal surfaces with strong longitudinal ridges or striae interconnected by scattered pores; epitheca with ±straight sides tapering to a small apical horn with an apical pore, broad at the base; hypotheca rounded, without antapical spines. Cingulum c. 4 µm wide, displaced by 1.5 cingular widths; cingular lists absent or greatly reduced, narrow and ribbed. Sulcus narrow, extending from apex to antapex; sulcal lists ±absent except at antapex where they extend posteriorly. Chloroplasts present.
Distribution
Southern Ocean, 44–55°S, south of Australia; Southern Ocean, near South Georgia (Dodge & Priddle, 1987); Ross Sea (Watanabe, 1982).
Comments
N/A