Chrysophyceae:
Ochromonadales: Ochromonadaceae
Chrysomonadida: Ochromonadidae
Monas sp.
Müller
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:
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Monas socialis,
cell body ellipsoidal 12 μm long, 10 μm wide,
anterior long flagellum about 17 μm long, a short flagellum inconspicuous,
anchoring filament 16 μm long,
x 640, Hikariga-oka Park, Nerima-ku, Tokyo, Japan, Feburary 2002 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
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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