Class Dinophyceae Pascher (1914) Order Dinophysales Er. Lindem. (1928) Family Dinophysaceae F. Stein (1883) Genus Parahistioneis Kof. & Skogsb. (1928) Parahistioneis karstenii (Kofoid & Michener) Kofoid & Skogsberg see Histioneis karstenii Kofoid & Michener (1911)