Class Dinophyceae Pascher (1914) Order Actiniscales Sournia (1984) Family Actiniscaceae Kütz. (1844) 1 Genus Achradina Lohmann (1902) 2 Genus Actiniscus (Ehrenb.) Ehrenb. (1843) 3 Genus Amphilothus Kof. ex Poche (1913) 4 Genus Dicroerisma F.J.R. Taylor & Cattell (1969)