Family: Circumferential paratene of mono- or dikinetids; not cirral or bristle-like.
Genus:
Similar Genus -> > Halteria Tontonia sp.,
cell body μm long,
x 400, Japan, October 1999, collected by A. Kihara, photo by Y. Tsukii
50 μm
100 μm
150 μm; x 400