Species not formally described.
[Only scales observed.] Body scales of 2 types: short spine scales with base-plate elliptical, 1.2 × 1.6 µm, distal surface with a fibrous pattern and 4 ridges supporting a central c. 0.25 µm long spine; plate scales elliptical, 0.8 × 1.1 µm, with c. 76 fine radiating striae on one surface, other surface with a fibrous pattern.
Southern Ocean, south of Australia, 46.20–57.31°S 101.18–134.05°E.
Chrysochromulina genus description: Cells have homodynamic flagella and a coiling haptonema, and electron microscopy is usually required to identify the species. As well as being photosynthetic, these fragile haptophytes ingest picoplanktonic and nanoplanktonic organisms by phagocytosis.