Diatoms of North AmericaDiatoms of North America

Placoneis

Mereschkowsky 1903

Placoneis Guide
  • Category
    Symmetric Biraphid
  • Class
    Bacillariophyceae
  • Order
    Cymbellales
  • Family
    Cymbellaceae
  • Type Species
    Placoneis gastrum (Ehrenb.) Mereschkowsky

Displaying 5 of 5 species

Sorted from smallest to largest by maximum length
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Placoneis anglophila Length: 18-21 Width: 7-8 Striae: 9-10
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Placoneis explanata Length: 22-37 Width: 8-11 Striae: 10-11
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Placoneis abiskoensis Length: 33-46 Width: 8-11 Striae: 10-12
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Placoneis gastrum Length: 30-55 Width: 15-20 Striae: 7-9
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Placoneis amphibola Length: 39-66 Width: 21-25 Striae: 5-9

15 Additional Placoneis species

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Citations & Links

Citations

Links

Updates

May 01, 2011 - correction of type species

The generitype had been posted as Placoneis exigua (Gregory) Mereschkowsky on this website. It was corrected to Placoneis gastrum (Ehrenberg) Mereschkovsky based on Cox (2003) and Jahn (2004) as of May 1, 2011. - S. Spaulding

Cite This Page

Spaulding, S., Edlund, M., Metzeltin, D. (2008). Placoneis. In Diatoms of North America. Retrieved May 01, 2026, from https://diatoms.org/genera/placoneis?x-craft-preview=cab8b13ef68d1e257235fd2491770f51dfe0c9a6c0ad3b95411776e5316d603alxhbyabypv