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Ocean Ecosystems/ESRIG, University of Groningen and Arctic Centre, University of Groningen and the RaTS program, British Antarctic Survey.

Authority

Mangin (1915: 45, fig. 27)

Class

Diatomophyceae

Order

Centrales

Family

Chaetoceraceae

Synonyms

N/A

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Basionym

N/A

Additional References

Priddle & Fryxell (1985: 34, figs A–D), Hasle & Syvertsen (1997: 203, pl. 41)

Description

Cells chain-forming, attached by setae of adjacent cells twisted around one another in 1 or 2 turns, heterovalvate, rectangular in girdle view; pervalvar axis 9–20 µm. Valves elliptical to circular; apical axis 9–15 µm; upper valve ±flat; lower valve slightly concave. Chloroplasts numerous, small, spherical or discoid, distributed into the setae (Fryxell & Medlin, 1981).

Distribution

Coastal waters off Davis Station, East Antarctica; Roosen Channel, Peltier Channel, Matha Bay, Petermann I., Antarctic Peninsula (Mangin, 1915); southern cold-water regions (Priddle & Fryxell, 1985; Hasle & Syvertsen, 1997); Weddell-Scotia Sea (Garrison et al., 1987); Drake Passage (Garrison et al., 1987); Indian Ocean sector of the Antarctic (Kopczyńska et al., 1986).

Comments

N/A

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