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Cryptophyceae: Cryptomonadales: Cryptomonadaceae
Cryptomonadida

Cryptomonas sp.
Ehrenberg

Cryptomonas Genus: Elliptical body with a firm pellicle; dorsal side convex, ventral side slightly flat; "cytopharynx" with granules; two lateral chromatophores (chloroplasts) vary in color from green to blue-green, brown or rarely red; 1-3 contractile vacuoles anterior (Kudo, 1966). Cell body elongated ovoid or elliptical; cytopharynx conspicuous; three rows of ejectisome (trichocysts) (Yamagishi, 1999).
Species:
Similar genus -->> Chroomonas; Chilomonas;


Cryptomonas sp. or Chroomonas ?, cell body 21 μm long, 11 μm wide, x 640, Kiyose river (near Kanayama Green park), Kiyose city, Tokyo, Japan, March 14, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cryptomonas


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