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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Trachelomonas dybowskii
Drezepolski, 1921

Trachelomonas dybowskii 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, 16-22 μm long, 12-18 μm wide, surface smooth, no collar (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000). Lorica 16-32 μm long, 10-18 μm wide, (Illustrations of The Japanese Fresh-water Algae, 1977).

Trachelomonas dybowskii Drezepolski 1921 (or T. intermedia Dangeard 1901 ?) lorica ovoid or broad ellipsoidal, surface granulated (or smooth ?), 21 μm long, 18 μm wide, flagellum long, about 70 μm long, collar absent ?, x 640, Sannoh park, Nishi-ku, Saitama city, Saitama Pref., Japan, July 4, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Trachelomonas Trachelomonas

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