Genus: Filament without branching; cell body cylindrical; each cell wall consists of two parts with "H" structure overlapping at the midregion; chloroplasts many, disc-shaped, without pyrenoids (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Filament 30-48 μm long, 10(-15) μm wide , (Süßwasserflora von Mitteleuropa 3, Xanthophyceae 1, 1978).

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Cell body 6-12 μm wide
T. vermichloris 16-35 x 9 μm Watarase Wetland Fujioka Tochigi, 2005	T. vermichloris 16-35 x 9 μm Hakama marsh Madarao highland Niigata, 2005
T. vermichloris ? 13-20 x 7 μm Heisei-no-mori m. Kawajima Saitama, 2006	T. vermichloris ? x 7 μm Tane-ike Togakushi highland Nagano, 2006	T. vermichloris ? x 6.5 μm Kokai river Mashiko Tochigi, 2008

Similar species -->> T. regulare

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