Polykrikos schwartzii Bütschli 1873

A = A living cell; B = Squashed cell, notice nematocysts and nuclei; C&D = Cells with food particles. D Nematocyst-taeniocyst complex visible. All (BF).

Pictures of cyst and nematocyst-taeniocyst complex


Life-form: Pseudoconial

Size: Length 100-150 µm.

Resting spore: +, length: 80-160 µm, width 50-80 µm


Distinctive features: Pseudocolony with 2-8 zooids with 1-4 nuclei. Individual zooids not conspicuous. Cells containing nematocysts-taeniocysts

Similar species:


Dodge, J. D. 1982. Marine Dinoflagellates of the British Isles. Her Majesty's Stationery Office, London. 303 pp.

Drebes, G. 1974. Marines Phytoplankton, Eine Auswahl der Helgoländer Planktonalgen (Diatomeen, Peridineen). Georg Thieme Verlag, Stuttgart. 186 pp.

Hansen, G. & Larsen, J. 1992. Dinoflagellater i danske farvande. In: Thomsen, H. A. (ed.) Plankton i de indre danske farvande. Havforskning fra Miljøstyrelsen, Copenhagen, p. 45-155.

Reid, P.C. 1978. Dinoflagellate cysts in the plankton. New Phytol. 80: 219-229.

  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