Predominantely ciliated cells, swimming cells biciliated. Cell coverings, when present, include organic scales, siliceous scales, organic lorica, and cellulose cell wall; eyespots present or absent. With statospores.
Including:
Dinobryon, Epipyxis, Cyclonexis, Chrysostephanosphaera, Chrysamoeba, Lagynion, Paraphysomonas.Gallery