cryptomonads see Order Cryptomonadales Pascher (1913)
   reniform cryptomonads see Family Hemiselmidaceae Butcher (1967)
     Genus Protochrysis A.A. Pascher (1911)
       1 Protochrysis phaeophycearum A.A. Pascher (1911)
       2 Protochrysis vinosa W. Conrad (1939)