cryptomonads whose IPC and/or EPC is plated and therefore the periplast appears plated when viewed using SEM
   periplast plates distinctly hexagonal
     1 Genus Chroomonas A. Hansgirg (1885)
     2 Genus Falcomonas D.R.A. Hill (1991)
     3 Genus Komma D.R.A. Hill (1991)
     6 Genus Plagioselmis R.W. Butcher (1967)
     8 Genus Rhinomonas D.R.A. Hill & R. Wetherbee (1988)