* Mougeotia scalaris (Dillwyn) Agardh: vegetative cells 40-180 μm long, 20-34 μm diam., 4-10 pyrenoids (Illustrations of The Japanese Fresh-water Algae, 1977).
Mougeotia lamellosa Jao: vegetative cells 60-185 μm long, 19-30 μm diam., 4-9 pyrenoids, many granules on the middle membrane of cysts (Illustrations of The Japanese Fresh-water Algae, 1977).
Mougeotia genuflexa (Dillwyn) Agardh: vegetative cells 50-225 μm long, 25-38 μm diam., many pyrenoids (Illustrations of The Japanese Fresh-water Algae, 1977).
Mougeotia robusta (De Bary) Wittrock: vegetative cells 64-226 μm long, 24-32 μm diam., 10-20 pyrenoids (Illustrations of The Japanese Fresh-water Algae, 1977).
Mougeotia globulispora Jao: vegetative cells 95-290 μm long, 26-32 μm diam., 6-12 pyrenoids (Illustrations of The Japanese Fresh-water Algae, 1977).