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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Cryptomonas

Cryptomonas Ehrenberg

[ref. ID; 1618]
Elliptical body with a firm pellicle; anterior end truncate, with two flagella; dorsal side convex, ventral side slightly so or flat; nucleus posterior; "cytopharynx" with granules, considered trichocysts by some observers; 2 lateral chromatophores vary in color from green to blue-green, brown or rarely red; holophytic; with small starch-like bodies which stain blue iodine; 1-3 contractile vacuoles anterior; fresh water. (ref. ID; 1618)

[ref. ID; 3490]
The cell is flat or slightly concave on the ventral side and convex on the dorsal one. The anterior end is more or less pointed due to the presence of the mouth of the pharynx. (ref. ID; 3490)
  1. Cryptomonas cylindracea Skuja, 1956 (ref. ID; 3703)
  2. Cryptomonas cylindracea Skuja f. hyalina Wawrik, 1980 (ref. ID; 3703 original paper)
  3. Cryptomonas erosa Ehrenberg (ref. ID; 3490)
  4. Cryptomonas ovata Ehrenberg (ref. ID; 1618)

Cryptomonas erosa Ehrenberg (ref. ID; 3490)

Descriptions

The oblong species as long as 15-28 um and as broad as 10-15 um, is somewhat concave on the ventral side and has two green chromatophores. (ref. ID; 3490)

Cryptomonas ovata Ehrenberg (ref. ID; 1618)

Descriptions

Among vegetation. (ref. ID; 1618)

Measurements

30-60 by 20-25 um. (ref. ID; 1618)