 
 
Euglenophyceae: 
Euglenales
Mastigophora: Euglenida
Trachelomonas abrupta
Swirenko, 1914
|  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
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
Images of collecting locality: 
a small pond near Yoshino park, Mitsukaido city, Ibaraki Pref., Japan, January 24, 2006 by Y. Tsukii
 
 
 
Please click on images for viewing enlarged.
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