Species:
Colony up to 110-200 μm in diam.;
cell body up to 19 μm in diam.; intercellular space present between their gelatinous sheath
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
Astrephomene perforata Nozaki 1983,
colony 112 μm long, 98 μm wide,
cell wall 15 μm in diam., cell body nearly spherical, about 10 μm in diam.,
x 400, x 640, rice field near Oyomi marsh, Hakuba village, Nagano Pref., Japan, October 3, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640