RAS taxon details
original description
Cooper, J. G. (1867). <i>Geographical catalogue of the Mollusca found west of the Rocky Mountains, between latitudes 33° and 49° north</i>. San Francisco: Geological Survey of California. 40 pp. , available online at https://www.biodiversitylibrary.org/item/46963 page(s): 12 [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]
Present Inaccurate Introduced: alien Containing type locality
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