WoRMS taxon details
Nomenclatureoriginal description
Lindsay, D. J.; Grossmann, M. M.; Bentlage, B.; Collins, A. G.; Minemizu, R.; Hopcroft, R. R.; Miyake, H.; Hidaka-Umetsu, M.; Nishikawa, J. (2017). The perils of online biogeographic databases: a case study with the ‘monospecific' genus Aegina (Cnidaria, Hydrozoa, Narcomedusae). <em>Marine Biology Research.</em> 13(5): 494-512., available online at https://doi.org/10.1080/17451000.2016.1268261 page(s): 507 [details]
From editor or global species database
Diagnosis Narcomedusae with interradial, divided stomach pouches; with a peripheral canal system; with primary perradial tentacles leaving umbrella between marginal pouches, in number half that of stomach pouches; pouches begin at points of origin of primary tentacles; tentacle roots recurved orally without penetrating deep into central mesoglea; deep peronial grooves lined with nematocysts below but not above points of origin of primary tentacles; without secondary tentacles on umbrella margin; without otoporpae. [details]
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