Spaulding, S.,
Edlund, M.
(2008).
Diatomella.
In Diatoms of North America.
Retrieved May 01, 2026, from https://diatoms.org/genera/diatomella?x-craft-preview=409442409a997390693ff24c7010fd6f1c96fb56f8f091fa016a63de9a54aaccecpiqubknd
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....