Spaulding, S.,
Edlund, M.
(2008).
Diatomella.
In Diatoms of North America.
Retrieved November 17, 2024, from https://diatoms.org/genera/diatomella
Symmetric Biraphid
Diatomella
Valves with distinct septa
Striae short
Proximal raphe ends expanded
The frustules of Diatomella are symmetrical to the apical and transapical axes. The valve outline is linear-elliptical. An internal septum is present, with three openings forming a distinctive internal thickening of silica. The striae are short, often not extending far beyond the valve margin. The proximal raphe ends are expanded....