Species not formally described.
[Only scales observed.] Body scales of 1 type: spine scales with base-plate circular to oval, 2–2.4 µm diameter, with an upwardly flexed rim and a cross-hatched fibrous pattern on distal surface; spine supported by 4 struts; overall length 3.5 µm.
Southern Ocean, south of Australia, 52.01°S 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.