Russell, 1940
Leptomedusae with wide, cross-shaped manubrium, with 4 perradial pouches joined to subumbrella; mouth with 4 simple or crenulated lips; with 4 simple radial canals; gonads folded on interradial walls of manubrium and/or on perradial manubrial pouches; marginal tentacles hollow; with hollow cordyli bearing cnidocysts; without ocelli.
Genus Chromatonema
Genus Margalefia
Genus Modeeria