Species: 35-55 μm long,
6-25 μm wide;
cylindrical to elongate ovate; highly plastic; fusiform chloroplasts variable in number (Kudo, 1966).
Less than 20 chloroplasts; paramylon (paramylum) body attached to each side of each chloroplast;
tolerance of wide range of acidity, pH 3.5-9.9 (How to know the protozoa, 1979).
35-65 μm long,
5-15 μm wide; swim rapidly;
chloroplasts 6-12 per cell, large flat, shield-shaped (Illustrated guide, 1985).Cell body fusiform or cylindrical, 40-65 μm long, 7-13 μm wide, posterior somewhat pointed, euglenoid movement active; chloroplasts saucer-shaped with wavy margin, 6-16 in number, a pyrenoid covered with paramylon sheath located at the center; a flagellum 1/2 to 2/3 of the body length; nucleus nearly spherical 7-8 μm in diam., stigma 3 μm (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000). |
31 μm
63 μm
94 μm; x 640
Euglena gracilis, stock Cis-1, axenic culture with EM in a tube (10 x 100 mm) for about a month,
cell body 56 μm long, 12 μm wide,
x 640, Sendabori, Matsudo city, Chiba Pref., Japan, January 2002 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Euglena gracilis, stock Cis-1, axenic culture (form May 9 to May 16, 2007),
cell body 53 μm long, 10 μm wide, L/W=5.3,
x 640, Sendabori, Matsudo City, Chiba Pref., Japan, January 2002 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
