Cyclotella spp.
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Cyclo_sp2.jpg Cyclo_sp3.jpg Cyclo_li1.jpg
Taxonomic Group: Diatom
Trophic Status: Autotrophic
Size Range: 3.5-67 ?m diameter, depending on the species (Tomas 1997)
Key Characteristics: Cells usually solitary, with undulated or wavy valves; central field distinctly different from the rest of the valve
Confused With: Any of the simple pill-box type centric diatoms; broad rules of thumb are as follows: Cyclotella spp., have an undulated or wavy valve face in girdle view, and longitudinal ridges or lines directed toward the center in valve view
Toxin: None known