Genus: Cell body flat, large, variable in shape, longer than wide; strong constriction at center; each semicell with several notches; cell wall with many short spines (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Google Image Search
M. brachyptera
μm
Miyatoko m.5
Minami-Aizu
Fukushima, 2008
M. brachyptera
235 x 190 μm
Komado marsh
Showa and Tajima
Fukushima, 2004
M. brachyptera
220 x 180 μm
Komado marsh
Showa and Tajima
Fukushima, 2004
