black and white portrait

Description:

Stephanoeca (steff-ann-o-eek-a) diplocostata Ellis, 1929. Collar flagellate with lorica divided into two chambers by a waist at about two fifths of the distance from the base of lorica. Cells have a lorica with transverse and horizontal costae. The cells have a single apical flagellum. The flagellum is as long as the cell body. The cell body is about 10 microns long and fills the posterior chamber of the lorica. The lorica attaches to the substrate with a stalk or with the posterior end of the lorica. Rarely observed.