Zonitoides arboreus (Say, 1817) Width 6mm, Height 3mm Land, Introduced, Native over the entire Nearctic region, extending to the tropics of Central America. Introduced into Hawaii, Israel, Kenya, South Africa, Madagascar, Mauritius, Hong Kong, South America, Europe, Madeira, Scandinavia, Russia, Australia, and New Zealand North and South Island L.N.S.I.
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