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Chrysophyceae: Ochromonadales: Ochromonadaceae
Chrysomonadida: Ochromonadidae

 Monas sp.
Wyssotski

Monas Genus: Solitary or colonial; body surface delicate; one to two chloroplasts; usually with a stigma; fresh water (Kudo, 1966). One to several chloroplasts; pyrenoid and/or eyespot (stigma) in some; cells naked, globular, ellipsoidal or pyriform (Illustrated Guide, 1985).
Species:

Monas sp., cell body 23 μm long, 20 μm wide, a long flagellum 31 μm in length, a short flagellum 12 ? μm in length, x400, x 640, Saitama Pref., Japan, May-June 1999 by Y. Tsukii
scale 20 μm scale 40 μm scale 60 μm; x 1000
Monas Monas Monas Monas

* M. guttula Ehrenberg: Spherical to ovoid; 14-16 μm long; free-swimming or attached; longer flagellum about one to two times body length; cysts 12 μm diam. (Kudo, 1966).

M. elongata Stokes: Elongate; about 11 μm long; anterior end obliquely truncate (Kudo, 1966).

M. socialis Kent: Spherical; 5-10 μm long (Kudo, 1966).

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