Drawing

描述：

Notosolenus lagenos Skuja, 1948. Cells relatively large, 40-46 x 23-28 microns, 12-17 microns thick and very weakly metabolic, flattened, elliptical-egg-shaped, in the front tapers with a neck, in the back rounded off. Dorsal side strongly convex. Anterior flagellum about 1-1.3 times cell length, posterior flagellum very short (1/7 - 1/9 times cell length). Reservoir oblong pear-shaped. Cell surface smooth and hyaline. Cytoplasm filled with medium sized spherical paramylon grains. Nucleus behind the centre of the cell.