Family: With two unequal flagella (heterokonta); no pellicle and plastic (Kudo, 1966).
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).

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O. variabilis 8 samples 7 μm φ 2 chl. 1998-2003	O. margaritata ? 5 samples 11-17 x μm 2003-2004	O. verrucosa 6 samples 24 μm 2005-2008	Ochromonas sp. 14 x 13 μm kenko-fukushi m.p. Koshigaya Saitama, 2005
Ochromonas sp. cell 7 μm φ Japan, 1998	Ochromonas sp. cell 7-8 μm φ Japan, 1998	Ochromonas sp. cell 6-7 μm φ Uruguay, 1999	Ochromonas sp. 9.5 x 9.5 μm Kuroiso Tochigi, 2000
Ochromonas sp. 8 x 8 μm Sugadaira Nagano, 2001	Ochromonas sp. 8 x 8 μm Watarase Tochigi, 2001	Ochromonas sp. 7 x 7 μm Kuroiso Tochigi, 2001	Ochromonas sp. 8-10 x 7 μm Akigase Park Saitama, 2002
Ochromonas sp. 9 x 8 μm Sayama Saitama, 2001	Ochromonas sp. stock Sam-2, axenic 11 x 9 μm Ageo Maruyama Park Saitama, 2002	Ochromonas sp. 8 μm φ Kanazawa Ishikawa, 2002	Ochromonas sp. 9 μm φ Otto-Numa Ibaraki, 2002
Ochromonas sp. 7 μm φ Sugadaira Nagano, 2002	Ochromonas sp. 7-8 μm φ Sugadaira Nagano, 2002	Ochromonas sp. & Stock Sso-2 7-9 μm φ Soka Park Saitama, 2002	Ochromonas sp. μm φ Akebono-yama A.P. Kashiwa Chiba, 2002
Ochromonas sp. μm φ Kashiwa Chiba, 2002	Ochromonas sp. μm φ Kurihashi Saitama, 2001	Ochromonas sp. μm φ Iwajuku Gunma, 2001	Ochromonas sp. μm φ Hasuda Saitama, 2002
Ochromonas sp. x 8 μm Iruma river Sayama Saitama, 2004	Ochromonas sp. or Chromulina ? 6-10 μm Omotsubo marsh Tetta-cho Okayama, 2004

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