Genus:
Test small ovoid in shape with siliceous scales in alternating transverse rows; pseudostome terminal;
cell body does not fill the test completely; nucleus posterior (Kudo, 1966).
Species:
Paulinella chromatophora ?,
cell body 23 μm long, 17 μm wide,
x 640, Kiyasse-Hanyu (Mitagaya Agriculture Park), Mitagaya, Hanyu city, Saitama Pref., Japan, May 2003 by Y. Tsukii
31 μm
63 μm
94 μm; x 640