Genus: Euglenas in a close fitting lorica; a single long flagellum extends through small opening; lorica with or without short collar; yellow to brown (How to know the protozoa, 1979). Lorica often possesses numerous spines, composed of ferric hydroxide impregnated with brown manganic compound (Kudo, 1966).
Species: Lorica broad ellipsoidal, 17-26 μm long, 13-22 μm wide; collar absent or short cylindrical; surface granulated (Illustrations of The Japanese Fresh-water Algae, 1977).

T. granulosa 26 x 22 μm Kejo-numa Furukawa Miyagi, 2003	T. granulosa 25 x 19.5 μm near Nan-ko Shirakawa Fukushima, 2003	T. granulosa 31 x 22 μm near Akai wetland Aizuwakamatsu Fukushima, 2005
T. granulosa 22 x 20 μm Japan, 1998	T. granulosa 16 x 13 μm Japan, 1998
T. granulosa 25 x 23 μm Sano Hakuba Nagano, 2004	T. granulosa ? 25 x 20 μm Kamishiro Hakuba Nagano, 2004	T. granulosa 29-30 x 23-26 μm Suga-daira marsh Ueda Nagano, 2006
T. granulosa 29 x 26 μm Iyari marsh Omachi Nagano, 2006	T. granulosa 26 x 22 μm Iyari marsh 4 Omachi Nagano, 2007	T. granulosa 30 x 22 μm Iyari marsh 2 Omachi Nagano, 2007
T. granulosa 29 x 26 μm Izumo Shrine Izumo Shimane, 2006	T. granulosa 23 x 20 μm Kibagata Park Komatsu Ishikawa, 2007
T. granulosa ? or T. abrupta ? 31 x 22 μm Saitama, 1999	T. granulosa ? or T. abrupta ? 39 x 20 μm Nishi-Urawa Saitama, 2001	T. granulosa ? 25 x 21 μm near Town Hall Shobu Saitama, 2004	T. granulosa ? or T. abrupta ? 31 x 21 μm Demaru-nakago Kawajima Saitama, 2005

Similar species -->> T. intermedia;

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