original description
Suter H. (1908). Additions to the marine molluscan fauna of New Zealand, with descriptions of new species. <em>Proceedings of the Malacological Society of London.</em> 8: 22-42, pls 2-3., available online at https://www.biodiversitylibrary.org/page/32058169
page(s): 40 [details]
source of synonymy
Finlay, H. J. (1927). New specific names for Austral Mollusca. <em>Transactions of the New Zealand Institute.</em> 57: 488-533.
page(s): 496 [details] Available for editors [request]
From editor or global species database
Nomenclature Finlay (1927:496) addressed the pre-occupation of the name by Turritella difficilis d'Orbigny, 1842 yet considered there is no need for a replacement name considering the synonymy with roseus. [details]