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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Trachelomonas armata
(Ehrenberg) Stein var. armata

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: 30-60 μm long, Spines around rim of collar, also on rear 1/4 of lorica, fresh water (How to know the protozoa, 1979).

Trachelomonas armata (Ehrenberg) Stein var. ??, lorica 30 μm long, 24 μm wide, L/W=, caudal spines 2.5 μm long, x 640, Junichogata-suigo-koen (pond), Himi city, Toyama Pref., Japan, August 22, 2006, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Trachelomonas Trachelomonas Trachelomonas
Lorica 38 μm long, 27 μm wide, L/W=, caudal spines 3 μm long, x 640
Trachelomonas Trachelomonas

Images of collecting locality: No. 3, Junichogata-suigo-koen (pond), Himi city, Toyama Pref., Japan, August 22, 2006, by Y. Tsukii

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