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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Trachelomonas planktonica
var. oblonga Drezepolski

Trachelomonas 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: Collar straight, L/W ≥ 3/4; lorica broad ellipsoidal in shape, surface dotted

Trachelomonas planktonica var. oblonga Drezepolski or T. volzii Lemmermann var. volzii, lorica (including collar) 26 μm long, 15 μm wide, lorica covered with granules, a long collar present, x 640, Otto-Numa (pond) Chosei-chi, Tsuchiura city, Ibaraki Pref., Japan, July 2002 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Trachelomonas Trachelomonas

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