Family: Unicells; cell body spherical, ellipsoidal, or spindle-shaped; without spiny projections or stipes (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus:

Google Image Search

E. gigas ? or Excentrosphaera ? 36-65 x 11-22 μm Koshigaya Saitama, 2001

E. gigas ? or Excentrosphaera ? 76 x 32 μm Ikenokochi marsh Tsuruga Fukui, 2004

E. gigas ? or Excentrosphaera ? 105 x 36 μm Ikei-no-ike Nasu Tochigi, 2006

Similar genus -->> Excentrosphaera;

Please click on species name for more images.

Copyright Protist Information Server