Marophryidae Cavalier-Smith and von der Heyden 2007
Periplast lacking silica scales but with numerous thin, pointed organic spicules tapering towards acute apices. Sole genus is Marophrys.
1. Marophrys Cavalier-Smith and von der Heyden 2007
Spicules radially oriented, numerous, length approximately half the cell diameter, tapering abruptly from base to acute tips.
Marophrys marina (Hertwig and Lesser 1874) Cavalier-Smith and von der Heyden 2007