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 sp.,
test 13 μm long, 11 μm wide,
x 640, Sannoh park, Nishi-ku, Saitama city, Saitama Pref., Japan, July 4, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640