A new species of Eucocconeis (Bacillariophyceae) from North America

Abstract

A new diatom species, Eucocconeis americana, is described from eastern North America. The new species differs from previously reported representatives of Eucocconeis Cleve by relatively flat valves and the characteristic shape of the central areas in both raphe and rapheless valves. We present details on the frustule structure and size variation, and compare the new species with other representatives of Eucocconeis. This new species was found in rivers and streams from the eastern USA characterized by low conductivity and pH.

Keywords:

• diatom
• Eucocconeis
• new species
• taxonomy
• North America

Acknowledgements

We acknowledge the use of the Centralized Research facilities in the College of Engineering at Drexel University, Philadelphia, and thank Jonathan English for help with the Latin description. This work was funded by the grant WRCP-08286 of the Pennsylvania Department of Conservation and Natural Resources (MP).