Diatoms of North AmericaDiatoms of North America
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Compare Tursiocola alata

Frankovich, Ashworth and M.J.Sullivan 2018

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This diatom is distinct for its elevated marginal ridges.
Tursiocola varicopulifera has a mantle that is constant in width and has undulating rows of elongated pores on the valvocopula.

LM scalebar = 10 µm
Tursiocola alata LM2 Tursiocola alata LM5 Tursiocola alata LM1 Tursiocola alata LM3 Tursiocola alata LM4 Tursiocola alata LM6
Length Range
22-40 µm
Width Range
2.7-3.8 µm
Striae in 10 µm
24-28

Tursiocola varicopulifera

Frankovich and M.J.Sullivan 2015

Tursiocola varicopulifera LM7 Tursiocola varicopulifera LM2 Tursiocola varicopulifera LM1 Tursiocola varicopulifera LM5 Tursiocola varicopulifera LM6 Tursiocola varicopulifera LM3 Tursiocola varicopulifera LM4
Length Range
31-57 µm
Width Range
2.9-4.7 µm
Striae in 10 µm
25-28