Bouillon, 1984
Leptomedusae with small manubrium; without gastric peduncle; 4-8, sometimes up to 11 radial canals; gonads completely surrounding radial canals, separated from manubrium; with adaxial excretory papillae; rudimentary marginal bulbs not permanent (all bulbs potentially transforming into tentacles); with closed statocysts; without ocelli.
Genus Malagazzia
Genus Octocanna
Genus Octophialucium
Genus Tetracanna