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Diatoms of the United States is now known as Diatoms of North America.
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Surirella atomus

Hust. 1955      Category: Surirelloid

Surirella arctica


Surirella brebissonii

LM scalebar = 10 µm = 80 pixels.


Contributor: Jonathan English - March 2011
Length Range: 8-19 µm
Width Range: 5-8 µm
Striae in 10 µm: Fibulae 8-10


The small, heteropolar valves are 8-19 μm in length by 5-8 μm in width. The headpole is broadly rounded while the footpole is cuneately rounded. The fibulae are broad and short with 8-10 in 10 μm. The costae and central line are not visible in the LM.

Original Description

Author: Hust. 1955
Length Range: 12 µm
Width Range: 6 µm
Striae in 10 µm:

Original Description

Valves oval with distinct alae, about 12 µ long, 6 µ broad. Alar canals about 6 in 10 µ, cell wall very slightly undulate in the marginal zone only. Structure very delicate and inconspicuous.

Original Images

Cite This Page:
English, J. (2011). Surirella atomus. In Diatoms of the United States. Retrieved May 22, 2018, from

Species: Surirella atomus

Contributor: Jonathan English

Reviewer: Rex Lowe


Hustedt, F. (1955). Marine littoral diatoms of Beaufort, North Carolina. Marine Station Bulletin 6:67 pp., 16 pls.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Surirella atomus CAS

North American Diatom Ecological Database (NADED)


Autecology Discussion