original description
Kramp P.L. (1957a). Hydromedusae from the Discovery collections. <em>Discovery Report.</em> 29(1-7): 1-128., available online at https://biodiversitylibrary.org/page/5568717
page(s): 23 [details] Available for editors 
context source (Hexacorallia)
Fautin, Daphne G. (2013). Hexacorallians of the World. (look up in IMIS) [details]
basis of record
Cnidaria Antarctic checklist (look up in IMIS) [details]
additional source
Bouillon, J.; Gravili, C.; Pagès, F.; Gili, J.-M.; Boero, F. (2006). An introduction to Hydrozoa. Mémoires du Muséum national d'Histoire naturelle, 194. Muséum national d'Histoire naturelle: Paris, France. ISBN 2-85653-580-1. 591 + 1 cd-rom pp. (look up in IMIS) [details]
From editor or global species database
Diagnosis Medusa umbrella with apical projection. Manubrium on gastric peduncle, four unbranched oral filiform tentacles attached above mouth margin, mouth simple, lips indistinct. Marginal tentacles in 8 groups, 4 perradial and 4 interradial, each group with one large tentacle flanked by two small tentacles; large tentacles hollow, without basal swellings, basal part adnate to umbrella and sunk into deep furrows of umbrella margin, adaxial ocellus at base of free portion of each tentacle. Gonads in 8 large adradial pads on manubrium wall. [details]
Status Russellidae is based on Russellia Kramp, 1957, an invalid junior homonym of Russellia Vargas, 1943 [Insecta, Diptera] and Russellia Muesebeck, 1950 [Hymenoptera] [details]