Pyramimonas disomata Butcher ex McFadden, Hill et Wetherbee 1986

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:


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

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.

  Copyright © 1996-2006, Mats Kuylenstierna & Bengt Karlson All rights reserved.
Last modified on 15 September, 2006

Swedish Meteorological and Hydrological Institute

Department of Marine Ecology, Göteborg University, Sweden