Spaulding, S.,
Edlund, M.
(2008).
Sellaphora.
In Diatoms of North America.
Retrieved December 12, 2025, from https://diatoms.org/genera/sellaphora
Symmetric Biraphid
Sellaphora
Valve linear, lanceolate or elliptic
Polar bars at apices, in some taxa
Striae uniseriate or biseriate
Conopeum present, in some taxa
Valves are linear, lanceolate, or elliptic with bluntly rounded poles. Polar bars, also termed "transapical thickenings", are present in some taxa. The axial area is distinct, and may be expanded along the apical axis to form a conopeum. The external proximal raphe ends are dilated. The terminal raphe fissurs are deflected.
Sellaphora is...
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