black and white portrait

Kuvaus:

Heterochromonas (het-err-ock-row-moan-ass) opaca Skuja, 1948. Cell outline is oval. Cells are about 16 - 18 microns long and somewhat dorso-ventrally flattened, and have an anterior protrusion and a central nucleus. The cells appear to be rigid. The cells have a deep ventral depression and are somewhat warty. Two flagella insert subapically into the depression, the anterior flagellum is about 0.5 times cell length, and the posterior flagellum is slightly longer than the cell and inserts below the anterior flagellum. The cells move by gliding with the anterior flagellum directed forwards and the posterior flagellum trailing.