Family: Unicells; cell wall present; two flagella (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: Cell body similar to Chloromonas, ellipsoidal, ovoid, cylindrical, or spherical in shape; cellwall thick; one or two gelatinous sheath present; papilla mostly distinct, domed or rounded (sometimes with tubular structures, flagella emerging from such tubes); chloroplast cup-shaped or perforated; pyrenoids absent; stimga mostly present; two apical contractile vacuoles present; two flagella emerging from different remote points on apical cell surface; nucleus at/near the center of the cell body (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).

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G. tecta 29 x 27 μm near Town Hall Shobu town Saitama, 2004	G. tecta 29 x 24 μm Shimo-muneoka Shiki Saitama, 2004	G. tecta 25-28 x 23-25 μm flag. μm Naruto Chiba, 2003	G. tecta 22 x 20 μm flag. μm Sanmu(Naruto) Chiba, 2006
G. tecta 22 x 21 μm Ohnuma Nasu-shiobara Tochigi, 2007	G. tecta 22-28 x μm Nozomiko 2 Iiyama Nagano, 2007	G. tecta 26 x 23 μm flag. μm near Oyomi marsh Hakuba Nagano, 2004
G. tecta ? 26 x 21 μm flag. μm Kowashimizu Suwa Nagano, 2005	G. tecta 20 x 18 μm flag. μm Shimo-muneoka Shiki Saitama, 2004	G. tecta 34 x 28 μm 21 x 16 μm flag. μm Kawaguchi n. p. Kawaguchi Saitama, 2005	G. tecta 18 x 16 μm 29 x 25 μm Okubo Ryoke Akigase park Saitama, 2005
G. tecta ? 20 x 15.5 μm Senjo-ga-hara Nikko Tochigi, 2003	G. tecta ? 28 x 28 μm near Imori pond Myoko highland Niigata, 2004	G. tecta ? 18-27 μm Ushidome-ike Norikura highland Nagano, 2005	G. tecta 26 μm Suiren-numa Hakkoda mountain Aomori, 2005
Gloeomonas sp. ? 22 x 19 μm near Karakemi m. Omachi Nagano, 2005	Gloeomonas sp. 19 x 17 μm flag. μm Ikenokochi marsh Tsuruga Fukui, 2004	Gloeomonas sp. 15 x 12 μm flag. μm Kakuman river Akagi mountain Gunma, 2005	Gloeomonas sp. 16 x 15 μm flag. μm Shirahata-Numa Urawa Saitama, 2005
Gloeomonas sp. 16 x 16 μm flag. μm Omine-numa Minakami Gunma, 2006	Gloeomonas sp. G. diplochlamys ? foot-ball shaped 32 x 20 μm p. dome-shaped Ueno Tokyo, 2001	G. tecta ? μm Handa numa Ohtawara Tochigi, 1999	Gloeomonas sp. 30 x 30 μm flag. μm Kakuman-buchi Akagi mt. Gunma, 2007
Gloeomonas sp. 21 x 12 μm flag. μm Iyari marsh 1 Omachi Gunma, 2007	Gloeomonas sp. 20 x 14 μm flag. μm Iyari marsh 3 Omachi Gunma, 2007

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