Genus: Variable in shape and in size; mostly longer than wide; strong constriction at center; semicell pyramid-shaped, apically flattened with indentation (or notch, some species lack this notch); laterally straight or wavy or indented; one chloroplast in each semicell; one pyrenoid for each chloroplast (Illustrations of The Japanese Fresh-water Algae, 1977).
Subgenus: Entomum (Apical area deeply indented or notched)
Section: Incisa (Cell surface smooth; apical area without spiny projections)
Species: Cell body 125-137 μm long, 48-50 μm wide, L/W=2.5, isthmus 19-20 μm wide; (Illustrations of The Japanese Fresh-water Algae, 1977).
Google Image Search
E. ozense 133 x 56 μm L/W=2.4 Shijuhachi-ike Shiga highland Nagano, 2005 |
E. ozense 146 x 64 μm L/W=2.3 Shijuhachi-ike Shiga highland Nagano, 2007  |
E. ozense 135 x 62 μm L/W=2.2 Shibu-ike Shiga highland Nagano, 2005 |
E. ozense 127 x 60 μm L/W=2.1 near Chigo-ike Shiga highland Nagano,2006 |
E. ozense x 65 μm L/W= Hyoutan-ike Shiga highland Nagano,2007 |
E. ozense 122 x 57 μm L/W=2.1 Shimo-no-koike Shiga highland Nagano,2007 |
