| Colony ovoid or ellipsoid; each cells with many small pyrenoids | 
|   E. elegans
 col.  x  μm
 Japan, 199?
 |   E. elegans
 cell division
 Soka
 Saitama, 2002
 |   E. elegans
 anisogamy
 col. 70 x 60 μm
 cells 12 μm
 Saitama, 2000
 |   E. elegans
 Tom-2A-1, axenic
 col. 66 x 62 μm
 Otawara
 Tochigi, 2000
 | 
|   E. elegans ?
 col. 50 x 43 μm
 cells 9 μm
 Koshigaya
 Saitama, 2001
 |   E. elegans ?
 col. 75 x 8 μm
 Japan, 1999
 |   E. elegans
 or E. cylindrica ?
 st. Kurihashi-1, axenic
 col.  x  μm
 Kurihashi
 Saitama, 2001
 | E. elegans cell  μm
 Japan, 1998
 | 
|   E. elegans
 colony inversion
 anisogamy ?
 Koma river
 Sakado
 Saitama, 2003
 |   E. elegans
 col. 108 x 90 μm
 cells 13-16 μm
 Ushiroya Park
 Saitama, 2002
 |   E. elegans
 col. 62 μm
 cells 16 μm
 near Town Hall
 Shobu
 Saitama, 2004
 |   E. elegans
 col. 72, 92 μm
 cells 11-13, 19 μm
 Muneoka
 Shiki
 Saitama, 2004
 | 
|   E. elegans
 col. 75 x 65 μm
 cells 10 μm
 Oyomi marsh
 Hakuba
 Nagano, 2004
 |   E. elegans ?
 col. 138 x 105 μm
 cells 11-19 μm
 Takasaka
 Saitama, 2002
 |   E. elegans ?
 col. 75-125 μm
 cells 9-21 μm
 Shiken-zaike
 Kamikawa
 Saitama, 2004
 |