MolluscaBase name details
original description
(of Capulus nutatus Hedley, 1908) Hedley, C. (1908). Studies on Australian Mollusca. Part X. <em>Proceedings of the Linnean Society of New South Wales.</em> 33: 456-489, pls 7-10., available online at https://biodiversitylibrary.org/page/39830702
page(s): 467 [details]
basis of record
Marshall, B. A. (1981). The genus <i>Williamia</i> in the western Pacific (Mollusca: Siphonariidae). <em>New Zealand Journal of Zoology.</em> 8 (4): 487-492., available online at https://www.tandfonline.com/doi/abs/10.1080/03014223.1981.10427972 [details]
additional source
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]
additional source
Spencer H.G., Willan R.C., Marshall B.A. & Murray T.J. (2011). Checklist of the Recent Mollusca Recorded from the New Zealand Exclusive Economic Zone. , available online at http://www.molluscs.otago.ac.nz [details]