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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Trachelomonas cylindrica
var. Decollata Playfair 1915

Trachelomonas cylindrica 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:
T. pulcherrima (elongated ellipsoidal, smooth); T. lacustris (elongated cylindrical, dotted); T. abrupta (cylindrical/ellipsoidal, dotted);

Trachelomonas cylindrica var. decollata Playfair 1915, lorica 21 μm long, 10 μm wide, x 640, Ushidome-ike (pond), Norikura highland, Azumi village, Nagano Pref., Japan, May 28, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Trachelomonas cylindrica

* Trachelomonas cylindrica Ehrenberg var. cylindrica: Lorica long cylindroid, smooth, rounded at both end; collar very short or absent; 15-20 μm long, 8-10 μm diam. (Illustrations of The Japanese Fresh-water Algae, 1977).

Trachelomonas volzii Lemmermann var. cylindracea Playfair: Lorica pear-shaped, slightly long; collar long, thick at base; 23-24 μm long, 14-15 μm diam. (Illustrations of The Japanese Fresh-water Algae, 1977).

Trachelomonas teres: 35 μm; lorica ovoid, with distinct collar (How to know the protozoa, 1979).

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