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Euglenophyceae: Euglenales
Mastigophora: Euglenida

Trachelomonas lacustris
Drezepolski 1925

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 elongated cylindrical, covered with dots (var. lacustris dots present hole lorica, 25-30 x 12-15 μm, var. ovalis dots restricted at both ends, 22 x 12 μm) (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000)
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Trachelomonas
T. lacustris
lorica 28 x 15 μm
L/W=1.9
Sakitama-kofun p.
Gyoda
Saitama, 2004
Trachelomonas
T. lacustris
lorica 24 x 12 μm
L/W=2.0
Sakitama-kofun p.
Gyoda
Saitama, 2004
Trachelomonas lacustris
T. lacustris
lorica 27 x 17 μm
L/W=1.6
Yanase river
Fujimi
Saitama, 2003
Trachelomonas
T. lacustris
v. ovalis ?
lorica 24 x 12.5 μm
L/W=1.9
water reservoir
near Yamaguchi Univ.
Yamaguchi, 2004
Trachelomonas
T. lacustris
lorica 23 x 11 μm
L/W=2.1
Oura central p.
Oura
Gunma, 2006
Trachelomonas
T. lacustris
lorica 28 x 17 μm
L/W=1.6
Iyari marsh 1
Omachi
Nagano, 2007
Trachelomonas
T. lacustris
lorica 28 x 16 μm
L/W=1.8
Azami-ike 1
Norikura highland
Nagano, 2007
Trachelomonas lacustris
T. lacustris
lorica μm
L/W=1.8
drainage ditch
Sakura
Chiba, 2008
Similar species -->> T. abrupta (cylindrical/ellipsoidal, dotted); T. klebsii (cylindrical, spiny); T. cylindrica (elongated cylindrical, smooth); T. pulcherrima (elongated ellipsoidal, smooth);

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Trachelomonas
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