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Authority

Heiden & Kolbe (1928: 534, pl. 12, fig. 181)

Class

Diatomophyceae

Order

Centrales

Family

Chaetoceraceae

Synonyms

N/A

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Basionym

N/A

Additional References

Manguin (1960: 285, pl. 10, fig. 105; pl. 28, fig. 335)

Description

Cells solitary, rarely remaining attached after cell division, isovalvate, rectangular in girdle view; pervalvar axis 28–88 µm. Valves elliptical, ±concave; apical axis 47–78 µm. Setae arising from narrow ends of valve margins, at first diverging, then lying in the transapical plane.

Distribution

Southern Ocean, south of Australia; type locality, “Gaussberg”, Davis Sea, “Gauss ” Expedition of 1901–02 (Heiden & Kolbe, 1928); Terre Adélie, 66°47’S 141°25’E (Manguin, 1960).

Comments

The single specimen collected in the present study measured 70 × 70 µm; those reported by Manguin were considerably smaller (apical axis 47–58 µm; pervalvar axis 28–42 µm).

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