Nomenclature
original description
Chamberlin, Ralph V. (1919). The Annelida Polychaeta [Albatross Expeditions]. <em>Memoirs of the Museum of Comparative Zoology at Harvard College.</em> 48: 1-514., available online at http://www.biodiversitylibrary.org/ia/memoirsofmuseumo4801harv
page(s): 423; note: Note replacing of Scione with Euscione because of homonymy [details]
From editor or global species database
Synonymy Chamberlin (1919) added Euscione as a replacement for the junior homonym Scione Malmgren, but did not use the genus in a combination. It seems no one did, but Scione Malmgren is permanently invalid (as long as Scione in Diptera is an available name) and through Euscione is a synonym of Axionice Malmgren [details]