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: Spines short; lorica ellipsoidal with/without collar;

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var. hispida: Collar absent or very short
var. hispida 34 x 26 μm L/W=1.3 Omine-numa Tsukiyono Gunma, 2003	var. hispida 33 x 24 μm L/W= near Omine-numa Minakami Gunma, 2008
var. hispida 34 x 24 μm L/W=1.4 near Imori pond Myoko highland Niigata, 2004	var. hispida 32 x 25 μm L/W=1.3 Okubo Ryoke Akigase park Saitama, 2005	var. hispida 33 x 26 μm L/W=1.3 Nozomiko 2 Iiyama Nagano, 2007
var. hispida ? 32 x 22 μm L/W=1.5 Imori pond Myoko highland Niigata, 2004	var. hispida ? 31 x 24 μm L/W=1.3 Kowashimizu Suwa Nagano, 2005	var. hispida ? 30 x 25 μm L/W=1.2 near Imori pond Myoko highland Niigata, 2004	var. hispida ? 30 x 25 μm L/W=1.2 Tane-ike Togakushi highland Nagano, 2005
var. hispida ? 27 x 22 μm L/W=1.2 Kowashimizu Suwa Nagano, 2005	var. hispida ? 27 x 22 μm L/W=1.2 Watarase Wetland Fujioka Tochigi, 2005	T. hispida ? 27 x 23 μm L/W=1.2 Takasaka Higashi-Matsuyama Saitama, 2002	T. hispida ? 27 x 23 μm L/W=1.2 Japan, 199?
T. hispida ? 26 x 18 μm L/W=1.4 Sakitama-kofun p. Gyoda Saitama, 2004	T. hispida 24 x 19 μm L/W=1.3 Nagaike park Hachioji Tokyo, 2005	T. hispida 22 x 19 μm 26 x 24 μm Watarase Wetland Fujioka Tochigi, 2005	T. hispida ? 23 x 19 μm L/W=1.2 Imou bog Toyohashi Aichi, 2004
var. hispida ? 20 x 16.5 μm L/W=1.2 Omine-numa Tsukiyono Gunma, 2003	T. hispida ? 16 x 14 μm L/W=1.1 water reservoir near Yamaguchi Univ. Yamaguchi, 2004	var. duplex 35 x μm L/W= Uruguay, 1999	var. papillata collar short ? 34 x μm L/W= Uruguay, 1999
var. hispida 37 x 30 μm L/W=1.2 Uruguay, 1999	var. hispida 26 x 20 μm L/W=1.3 Iyari marsh 3 Omachi Nagano, 2007
Collar present (spiny); lorica elongated ellipsoidal (37-40 μm long)
var. coronata collar spiny 37 x 23 μm L/W=1.6 near Town Hall Shobu Saitama, 2004	var. coronata collar spiny 36 x 23 μm L/W=1.6 near Town Hall Shobu Saitama, 2004	var. coronata collar spiny 35 x 23 μm L/W=1.5 Kowashimizu Suwa Nagano, 2005	var. coronata collar spiny 37 x 22 μm L/W=1.7 Kowashimizu Suwa Nagano, 2007
var. coronata 35 x 23 μm L/W=1.5 Izumi 741 Namegawa Chiba, 2003	var. coronata collar spiny 36 x 22 μm L/W= Kashibaru marsh Karatsu Saga, 2008
var. coronata collar spiny 35 x 22 μm L/W=1.6 Naruto Chiba, 2003	var. coronata ? 34 x 23 μm L/W=1.5 Onnenai Kushiro marsh Hokkaido, 2005	var. coronata collar spiny 33 x 22 μm L/W=1.5 Demaru-nakago Kawajima Saitama, 2005	var. coronata ? 33 x 23 μm L/W=1.4 Mizuko-kaizuka p. Fujimi Saitama, 2004
var. coronata collar spiny 29 x 21 μm L/W=1.4 under Akigase bridge Akigase park Saitama, 2005	var. coronata collar spiny 32 x 22 μm L/W=1.5 Ko-sumida r. Kasukabe Saitama, 2006	var. coronata collar spiny 33 x 25 μm L/W=1.3 Toneri Park Adachi-ku Tokyo, 2005	var. coronata ? 30 x 22 μm L/W= Mizuko Fujimi Saitama, 2003
v. crenulatocollis ? or v. coronata ? 25 x 17 μm L/W=1.5 Tatebayashi Gunma, 2001	v. crenulatocollis ? or v. coronata ? 22 x 16 μm L/W=1.4 Saitama, 1999
Collar present (cylindrical, apically crenulated); lorical broad ellipsoidal (18-30 μm long)
var. crenulatocollis or v. coronata ? 33 x 21 μm L/W=1.6 Uruguay, 1999	var. crenulatocollis 26 x 20 μm L/W=1.3 Chaya-numa p. Fukushima city Fukushima, 2005
var. crenulatocollis 29 x 20 μm L/W=1.5 Uruguay, 1999	var. crenulatocollis 33 x 22 μm L/W=1.5 Mihashi Park Saitama, 2002	var. crenulatocollis 32 x 22 μm L/W=1.5 Mizuko-kaizuka p. Fujimi Saitama, 2003	var. crenulatocollis 30 x 20 μm L/W=1.5 Mizuko-kaizuka p. Fujimi Saitama, 2004
var. crenulatocollis ? or v. coronata ? 27 x 20 μm L/W=1.4 Nishi-Urawa Saitama, 2001	var. crenulatocollis ? or v. coronata ? 25 x 19 μm L/W=1.3 Sakitama-kofun p. Gyoda Saitama, 2004

Similar species -- >> T. allia (broad cylindrical, spiny); T. klebsii (cylindrical, spiny); T. abrupta (cylindrical/ellipsoidal, dotted);

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