Cryptophyceae:
Cryptomonadales: Cryptomonadaceae
Cryptomonadida
Cryptomonas ovata
Ehrenberg 1832 (Mizuno & Takahashi eds. 2000)
Ehrenberg 1838 (John et al. eds. 2002)
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:
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Similar genus -->> Chroomonas;
Chilomonas;
Cryptomonas ovata Ehrenberg 1832,
cell body 36 μm long, 18 μm wide,
x 640, Imori pond, Myoko-kogen (Myoko highland), Myoko village, Niigata Pref., Japan, November 7, 2004 by Y. Tsukii
50 μm
100 μm
150 μm; x 400
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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