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Name derivation




Cystodinium  Klebs  1912;  5 of 20 species descriptions are currently accepted taxonomically (Guiry 2013).

Order Phytodiniales;  Family Phytodiniaceae


Both nonflagellate cells 33 – 130 µm long, lunate with ‘horns’ drawn out to a point, as well as biflagellate zoospores that resemble Gymnodinium.


Similar genera:



Epineustonic non-flagellate cells in freshwater habitats.  Zoospores are strongly +phototactic facilitating entrance into the epineuston where they shed their theca as the new cell wall asymmetrically elongates into the immobile vegetative stage (Timpano and Pfiester 1985).



Guiry, M.D., and G.M. Guiry  2013.  AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.  http://www.algaebase.org; searched on 16 January 2013.

Klebs, G.  1912.  Über Flagellaten- und Algen-ähnliche Peridineen.  Verh. Naturhist. Med. Vereins Heidelberg, N.F. 11: 369-451.

Timpano, P., and L.A. Pfiester  1985.  Colonization of the epineuston by Cystodinium bataviense (Dinophyceae):  Behavior of the zoospore.  Journal of Phycology 21(1):56-62.







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