A&B = Living cells (arrow=red granules); B = Cells in Lugol. A(BF), B(DIC) ; C = Cell in SEM (Box and crown scales are visible)
Life-form: Solitary
Size: Length 6-12 µm, Width 4-5 µm
Resting spore:
Note:
Distinctive features: Cell with two stigmata and often with a posterior extension with red granules. The outer most part of cell has a layer with characteristic crown scales (star-like)
Similar species:
Distribution: North Pacific, Japan, Australia, New Zealand, North Atlantic, Skagerrak, Kattegat
Literature:
McFadden, G. I., Hill, D. R. A. & Wetherbee, R. 1986. A study of
the genus Pyramimonas (Prasinophyceae) from south-eastern
Australia. Nord. J. Bot. 6: 209-234.
Moestrup, Ø. 1992. Prasinophyceae og andre grønne flagellater (in danish). In: Thomsen, H. A. (ed.) Plankton i de indre danske farvande. Havforskning fra Miljøstyrelsen, Copenhagen, p. 267-310.