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Cryptophyceae: Cryptomonadales: Cryptomonadaceae

Cryptomonas sp.

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).
Similar genus -->> Chroomonas; Chilomonas;

Cryptomonas or Chroomonas ?, cell body 23 μm long, 14 μm wide, a pyrenoid at posterior end, x 400, x 640, Dewa Park, Koshigaya, Saitama Pref., Japan, July 2001 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Cryptomonas Cryptomonas Cryptomonas

C. ovata: 16-20 μm long, 8-10 μm wide; two almost equal flagella; color, dark umber to dark brown (Illustrated Guide, 1985). 20-30 micron; reservoir distinct; yellow to brownish-green chloroplasts; starch granules (How to know the protozoa, 1979). 30-60 μm long, 20-25 μm wide (Kudo, 1966).

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