Diatoms of North AmericaDiatoms of North America

Diatoma

Bory de Saint-Vincent 1824

Diatoma Guide
  • Category
    Araphid
  • Class
    Fragilariophyceae
  • Order
    Fragilariales
  • Family
    Fragilariaceae
  • Type Species
    Diatoma vulgaris Bory de Saint-Vincent

Displaying 5 of 5 species

Sorted from smallest to largest by maximum length
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Diatoma moniliformis Length: 10-40 Width: 2-6 Striae: 50-60
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Diatoma problematica Length: 6-43 Width: 3-5 Striae: -
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Diatoma vulgaris Length: 15-60 Width: 8-12 Striae: 50-60
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Diatoma tenuis Length: 20-85 Width: 2-4 Striae: 45-60
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Diatoma ehrenbergii Length: 31-121 Width: 4-9 Striae: 35-40

3 Additional Diatoma species

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Citations & Links

Citations

Links

Updates

Sep 20, 2017 - Change in circumscription

Re-examination of the genera Diatoma and Odontidium led Jüttner et al. (2015) to recommend the use of the name Odontidium at the generic level for taxa treated from that sub-genus of Diatoma. Refer to Jüttner et al. for an account, including a neotype designation for O. hyemale and commentary on the nomenclatural priority of Odontidium.

This taxon appeared as Diatoma, including Odontidium and Diatoma as subgenera, in the Diatoms of the US flora from May 2010 through September 2017. As of September 2017, the genus circumscribes the more narrow concept of Diatoma. A new page for Odontidium was created at this time.

Cite This Page

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