Spaulding, S.,
Metzeltin, D.
(2013).
Prestauroneis.
In Diatoms of North America.
Retrieved November 21, 2024, from https://diatoms.org/genera/prestauroneis
Symmetric Biraphid
Prestauroneis
Central striae radiate
Central striae widely spaced
Pseudoseptae present
Valves are lanceolate to lanceolate-elliptical. The raphe extends the length of the valve, onto the valve mantle. Pseudosepta are present at the apices. The striae are radial at the center of the valve, becoming nearly parallel at the apices. The striae are uniseriate and composed of small, round or elliptical areolae. At the center of...