Efford, M.G., Howitt, R., Gleeson, D. 2002 Phylogenetic relationship of Wainuia (Mollusca: Pulmonata) - biogeography and conservation implications, Journal of the Royal Society of New Zealand, 32(3) (p.445)
Efford, M.G. 1998 Distribution and status of native carnivorous land snails in the genera Wainuia and Rhytida, Department of Conservation, Wellington, 101 (p.28)
Powell, A.W.B. 1979New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.343)
Key to Geographical Ranges
The symbols K.A.C.F.M.An. are used to indicate the geographical range of the species.
They have been adopted to give an approxomation of the range of each species within New Zealand.
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
Cookian - Lower North Island and the northern part of the South Island