Subgenus: Entomum (Apical area deeply indented or notched)
Section: Incisa (Cell surface smooth; apical area without spiny projections)
Species: (Illustrations of The Japanese Fresh-water Algae, 1977).
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E. bidentatum 54 x 37 μm L/W=1.5 Ushidome-ike Norikura highland Nagano, 2005 |
E. bidentatum 55 x 37 μm L/W=1.5 Dojo-ike Norikura highland Nagano, 2006 |
E. bidentatum 46 x 31 μm 45 x 30 μm L/W=1.5 Iroha-numa 2 Zao mountain Yamagata, 2006 |
E. bidentatum 44 x 29.5 μm L/W=1.5 Iroha-numa 3 Zao mountain Yamagata, 2006 |