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Euglenophyceae: Euglenales
Mastigophora: Euglenida

Trachelomonas abrupta
Swirenko, 1914

Trachelomonas Species: Lorica cylindrical (var. abrupta 22-30 x 15-19 μm and var. minor 16-20 x 10-12 μm) with semispherical ends, or elongated ellipsoidal (var. arcuata 20-30 x 14-18 μm); collar absent; surface granulated or dotted (many small and short spines) (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000)
Similar species -->> T. lacustris (elongated cylindrical, dotted); T. hispida (ellipsoidal, spiny); T. allia (broad cylindrical, spiny); T. klebsii (cylindrical, spiny);


Trachelomonas abrupta Swirenko ?, lorica 25 μm long, 18 μm wide, L/W=1.4, a small collar (1 μm long, 4 μm wide, L/W=0.25) present, x 640, a small pond near Yoshino park, Mitsukaido city, Ibaraki Pref., Japan, January 24, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Trachelomonas Trachelomonas Trachelomonas

Images of collecting locality: a small pond near Yoshino park, Mitsukaido city, Ibaraki Pref., Japan, January 24, 2006 by Y. Tsukii


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