Kramp, 1957
Anthomedusae with apical projection; manubrium mounted upon peduncle; with four unbranched oral tentacles above mouth margin, without terminal cnidocyst clusters; mouth with four perradial lips; marginal tentacles hollow, without basal swellings, in 8 groups, 4 perradial and 4 adradial, each group with one large and two small tentacles; basal part of large tentacles sunken into deep furrows of umbrella margin; with 8 adradial gonads; with adaxial red ocellus at base of free portion of tentacles. Hydroids unknown.
Genus Russellia