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Authority

Perag. (Peragallo, 1921: 56, pl. 2, fig. 11)

Class

Diatomophyceae

Order

Pennales

Family

Naviculaceae

Synonyms

Navicula triplex VanLand. (VanLandingham, 1975: 2857))
Navicula subpolaris auct. non De Toni (1891), sensu Hendey (1937: 345)

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Basionym

N/A

Additional References

N/A

Description

Cells usually solitary, linear to lanceolate, with acute apices in valve view, almost rectangular in girdle view; apical axis c. 100–105 µm; transapical axis c. 11–15 µm. Valve surface convex, with a prominent median raphe and a small hyaline central area; central and terminal raphe endings small. Transapical striae c. 6–10 in 10 µm.

Distribution

Coastal waters off Davis Station, East Antarctica; Argentine Is., Antarctic Peninsula (Peragallo, 1921); Bellingshausen Sea (Hendey, 1937).

Comments

Hendey (1937) described this as “a small characteristic Antarctic diatom observed in small numbers in water obtained from melted ice”.

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