MolluscaBase taxon details
original description
(of Zonites helmsii F. W. Hutton, 1882) Hutton F.W. (1882). Descriptions of new land shells. <em>New Zealand Journal of Science.</em> 1(6): 281-282., available online at https://biodiversitylibrary.org/page/41865912
page(s): 281 [details]
original description
(of Phacussa helmsi var. maculata F. W. Hutton, 1884) Hutton, F. W. (1884). Revision of the land Mollusca of New Zealand. <em>Transactions of the New Zealand Institute 16: 186–212.</em>
page(s): 205 [details]
basis of record
Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. Pp 196-219. <em>in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia.</em> Canterbury University Press, Christchurch. [details]