A = Chain; B = Cell in valve view; C = Cells with many chloroplasts in girdle view; D = Mucous pad between cells (=arrow). A&B (DIC), C (BF); D = In epifluorescence microscope (stained with primulin, Uv-excitation)
Life-form: Cells united in zig-zag-like chains
Size: Apical axis 10 - 110 µm, transapical axis 2 - 4 µm
Distinctive features: Valve ends similar in width and length. Marginal structure visible with LM as ribs
Similar species: T. frauenfeldii
Hasle, G. R. & Syvertsen, E. E. 1996. Marine diatoms. In: Tomas, C. R. (ed.) Identifying marine diatoms and dinoflagellates. Academic Press, Inc., San Diego, p. 5-385.