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: Unicellular; planktonic; cell body elongated spindle-shaped or crescent in shape, laterally unsymmetrical, both ends attenuated; autospores attached each other at their one ends arranging radially; a single chloroplast plate-like, with a pyrenoid (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Google Image Search
Similar genus -->> Quadrigula;
Chlorolobion sp.
cell 40 x 2-3 μm
Higashi-hiroshima
Hiroshima, 1998
Movies 
Chlorolobion sp.
cell μm
Numappara marsh
Kuroiso
Tochigi, 2003
Chlorolobion ?
cell μm
Doman-green p.
Nishi-Urawa
Saitama, 2003
Chlorolobion ?
cell 45 x 3 μm
near City Hall
Fujimi
Saitama, 2004
Chlorolobion ?
cell 45 x 3 μm
Tennoh
Tessei-cho
Okayama, 2004
Chlorolobion ?
cell 40-42 x 4-4.5 μm
Ikenokochi marsh
Tsuruga
Fukui, 2004
