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The World of Protozoa, Rotifera, Nematoda and Oligochaeta


Cystodinium Klebs

[ref. ID; 1618]
In swimming phase, oval, with extremely delicate envelope; annulus somewhat acyclic; cyst-membrane drawn out into two horns. (ref. ID; 1618)

[ref. ID; 3490]
The cyst is crescent, transparent and homogenous and contains a Gymnodinium-like cell in the center. The free swimming cell with a thin wall is usually ovoidal and has a eye-spot near the sulcus on the hypocone. (ref. ID; 3490)
  1. Cystodinium phaseolus Pascher (ref. ID; 7121)
  2. Cystodinium steini Klebs (ref. ID; 1618, 3490)

Cystodinium phaseolus Pascher (ref. ID; 7121)


Free-living. GenBank accession number EF058235. (ref. ID; 7121)

Geographic origin

Lake Lunzer, Obersee, Austria. (ref. ID; 7121)

Cystodinium steini Klebs (ref. ID; 1618, 3490)


Stigma beneath sulcus; chromatophores brown; freshwater ponds. (ref. ID; 1618)
The crescent cyst with pointed tips has a organism carrying numerous yellowish brown chromatophores, a few orange oil drops and a red eye-spot. (ref. ID; 3490)


Swarmer about 45 um long. (ref. ID; 1618)
In the examined specimens the cysts were measured 68-75 um in length and 25-28 um in breadth and the organisms were 40-48 um long and 18-25 um broad. (ref. ID; 3490)