Family: Unicells; cell wall separating into two parts (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
Google Image Search
Similar genus -->> Coccomonas;
D. punctatus
cell 18 μm
test 30 x 27 μm
near Town Hall
Shobu town
Saitama, 2004
