Gyrodinium undulans Hulburt 1957

A = Dorsal view upper focus; B = Dorsal view lower focus (arrow= s-formed sulcus on epicone). A living cell (BF)


Life-form: Solitary

Size: Length 25-40 µm, width 21-31 µm.

Resting spore:


Distinctive features: Sulcus forming a bi-sigmoid curve on the epicone. Chloroplasts absent

Similar species:


Hulburt, E. M. 1957. The taxonomy of unarmored Dinophyceae of shallow embayments on Cape Cod, Massachusetts. Biological Bulletin. 112: 196-219.

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.

  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