Marshall, B.A., Barker, G.M. 2007 A revision of New Zealand landsnails of the genus Cytora Kobelt & Möllendorff, 1987 (Mollusca: Gastropoda: Pupinidae), Tuhinga: Records of the Museum of New Zealand Te Papa Tongarewa, 18 (p.84)
Goulstone, J.F., Mayhill, P.C., Parrish, G.R. 1993 An Illustrated Guide to the Land Mollusca of the Te Paki ecological region, Northland, New Zealand, New Zealand Journal of Zoology, 34 (p.5)
Powell, A.W.B. 1979New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.86)
Powell, A.W.B. 1941 Seven New Species of New Zealand Land Mollusca, Records of the Auckland Institute and Museum, 2(5) (p.260)
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 approximation 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