Family: Unicells or colonies of non-fixed number of cells; cell body variable in shape; one or more chloroplasts variable in shape; asexual reproduction by autospore or autocoenobium (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus & Species [ M. tosaensis ]: Colonies of 4 cells, frequently developed to composite colonies of 16 (=4 x 4) cells; cells rhomboidally arranged and separated from one another in the gelatinous coat; colonies covered by a thick gelatinous material, sometimes with radiating fibrils; cell body broad ellipsoidal, 20-25 μm long, 12-15 μm wide; parietal chloroplasts numerous, small, disc-shaped (Photomicrographs of the Freshwater Algae, 1984).

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M. tosaensis cell 23 x 14 μm Showa Memorial p. Tokyo, 2001	M. tosaensis stock Tsn-4 cell 26 x 15 μm Showa Memorial p. Tokyo, 2001	M. tosaensis cell 20 x 15 μm Iwatsuki-bunka p. Saitama, 2002	M. tosaensis cell 20 x 13 μm Matto Ishikawa, 2002
M. tosaensis cell μm City Museum Iruma Saitama, 2003	M. tosaensis cell 18 x 13 μm City Museum Iruma Saitama, 2006	M. tosaensis cell μm Kanazawa Univ. Kanazawa Ishikawa, 2003	M. tosaensis cell 22 x 16 μm Near Railway St. Takamatsu Kagawa, 2002
M. tosaensis cell μm Doman-green Park Nishi-Urawa Saitama, 2003	M. tosaensis cell 17-18 x 12-13 μm near Railway st. Tsuruoka Yamagata, 2005	Makinoella sp. cell μm Koga museum Koga Ibaraki, 2003	Makinoella sp. cell 15 x 9 μm Tsukuba Ibaraki, 2002

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