A-C = Living cells and one collapsed (A,I arrow=nuclei) (A,B DIC, C PC); D = Cell with four flagella, Lugol. (PC); E = Chloroplasts in epifluorescence; F = Large scales with two horns (PC); G-J = Lugol fixed cells, notice haptonema in H. (DIC)
Life-form: Solitary
Size: length = 13-24 (31) µm, width = 8-11 µm
Resting spore: -
Note: Most often in or below ice
Distinctive features: Cells with two or four flagella, Two distinct size groups of almost identically constructed scales
Similar species:
Distribution: Southern coast of Finland, Swedish West coast, Japan (Takahashi, E. 1981 in Hällfors 1989)
Literature:
Hällfors, G. & Niemi, Å. 1974. A
Chrysochromulina (Haptophyceae) bloom under the ice in the
Tvärminne Archipelago, southern coast of Finland. Memoranda Soc.
Fauna Flora Fennica. 50: 89-104.
Hällfors, G. 1989. Chrysochromulina birgeri G. Hällfors et Niemi (Prymnesiophyceae). Baltic Sea Phytoplankton Identification Sheet No. 2. Ann Bot. Fennici. 26: 91-92.
Hällfors, G. & Thomsen, A. 1979. Further observations on Chrysochromulina birgeri (Prymnesiophyceae) from the Tvärminne archipelago, SW coast of Finland. Acta Bot. Fennica. 110: 41-46.