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 Lauterborn,
test 26 μm long, 19 μm wide, pseudostome 3.5 μm wide,
x 640, Owada Park, Saitama city, Saitama Pref., Japan, April 3, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640