How Nitzschia tenuirostris looks?

Question

How Nitzschia tenuirostris looks?

Answer 1

Ref 1 indicates that Nitzschia palea, specifically N. palea var. tenuirostris, was recently renamed Nitzschia tenuirostris.

Ref 2 provides a picture of N. palea and the following description:

Cells solitary. Frustules isopolar, bilaterally symmetrical. Cells lie in valve or girdle view and isolated valves always in valve view. Valves bilaterally symmetrical, usually linear-lanceolate but sometimes linear to lanceolate. Poles shortly rostrate, subrostrate or subcapitate. In a few cases (smaller valves), the shape could be regarded as linear with cuneate ends. The central portion of the valve has parallel or very slightly convex, but never concave margins. Striae dense and may be difficult to see in LM. Raphe system fibulate (the raphe itself is impossible to detect in LM), marginal. Fibulae small, dot-like or ± square. Central pair of fibulae no more widely separated than the others; central raphe endings absent. In a frustule, the raphe systems of the two valves lie on opposite sides ('nitzschioid symmetry') Two chloroplasts per cell, one towards each pole. Each chloroplast is a simple plate, which lies against one valve and one side of the girdle.

"Tenuirostris" means "slender beak", but here I guess that the rostrum referred to is the projection at each end of the diatom.  So in the description above, the tenuirostris variety would have "narrow poles".

But this is all speculation, as I have never seen the little rascal.  I'll look up N. palea tonight in my Ward and Wipple.