Gonatozygon brebissonii de Bary,
cell body 146 μm long, 8 μm wide,
x 640, Azami-ike (pond), Norikura highland, Azumi, Matsumoto city (formerly Azumi village), Nagano Pref., Japan, June 8, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Cell body 263 μm long, 7 μm wide, x 400, x 640
Images of collecting locality:
Azami-ike (pond), Norikura highland, Azumi, Matsumoto city (formerly Azumi village), Nagano Pref., Japan, June 8, 2006 by Y. Tsukii
* Gonatozygon brebissonii var. echinatum Krieger: cell body cylindrical 96-140 μm long, 5-(5.5-7.5) μm wide, L/W = 15-20, cell wall covered with many fine hairs, both ends slightly swelled (Illustrations of The Japanese Fresh-water Algae, 1977).
Gonatozygon brebissonii Wolle var. brebissonii: cell body cylindrical 177-(180)-300 μm long, 10.5-15-(15.5) μm wide, L/W = 12-20, cell wall covered with many hairly spines, both ends slightly swelled (Illustrations of The Japanese Fresh-water Algae, 1977).
Gonatozygon monotaenium de Bary: cell body cylindrical (74-145)-284 μm long, 7.5-(9)-11.5 μm wide, L/W = 10-25, cell wall with many granules, both ends slightly swelled (Illustrations of The Japanese Fresh-water Algae, 1977).