Length: 46

Width:

Keel punctae: 9

Striae: 16-18

Collection 1159a

Wm. Smith, Syn. British Diat., Vol. 2, p. 89. 1856.

This taxon is usually found among the periphyton (Lowe 1974).

Synonyms (Stoermer and Yang 1969)

Nitzschia tryblionella var. levidensis (Wm. Smith) Grunow in : Cleve and Grunow, K. Svenska Vet.-Akad. Handl., Ny Foeljd, 17(2): 70. 1880.

Ecology

Taxa from the genus Tryblionella are tolerant of slightly brackish waters (Lowe 1974).

Length is 18 to 54 micrometers (Hustedt 1930).

Width is 9 to 14 micrometers (Hustedt 1930).

Keelpunctae are 12 in 10 micrometers (Hustedt 1930).

Transapical ribs are 9 to 13 in 10 micrometers (Hustedt 1930).