 |
Authority
Ehrenb. (Ehrenberg, 1844a: 78)
Class
Diatomophyceae
Order
Centrales
Family
Coscinodiscaceae
Synonyms
N/A
Basionym
N/A
Additional References
Ehrenberg (1854: 18, fig. 44), Hendey (1964: 78, pl. 22, fig. 2), Hasle & Syvertsen (1997: 107, pl. 18, tab. 20a, b)
Description
Cells solitary, discoid, thick-walled. Valves circular, flat, 35–200 µm diameter. Central rosette of areolae absent. Areolae coarse, 1–4 in 10 µm, in irregular radial rows. Marginal area prominent, with a ring of labiate processes (not visible by LM) 2–10 areolae apart. Chloroplasts small, spherical.
Distribution
Ross Sea (Watanabe, 1982); Bransfield Strait (Boden, 1985); Amundsen Sea, 70°50’S 102°13’W, “Belgica ” (van Heurck, 1909).
Comments
See VanLandingham (1968: 923) for full synonymy.