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Guide to Thalassiosira baltica

(Grunow) Ostenf. 1901

Thalassiosira Baltica Guide
Credit: David Burge, Mark Edlund
  1. Valve face flat
  2. Areolae coarse
  3. Central fultoportulae up to 7
  4. Rimoportulae 3

The valve face is flat. Areolae are coarse and radiate from the valve center in sectored rows. Three rimoportulae are present on the valve face, closer to the valve margin than to the center of the valve.