References and suggested future reading
Barker GM 2005. The character of the New Zealand land snail fauna and communities: some evolutionary and ecological perspectives. Records of the Western Australian Museum, Supplement 68: 53–102.
Hitchmough R, Bull L, Cromarty P 2007. New Zealand Threat Classification System lists 2005. Wellington, Department of Conservation. 194 p.
Marshall BA, Barker GM 2008. A revision of the New Zealand landsnails referred to Allodiscus Pilsbry, 1892 and Pseudallodiscus Climo, 1971, with the introduction of three new genera (Mollusca: Gastropoda: Charopidae). Tuhinga (in press).
Solem A 1982. Endodontid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part 2. Families Punctidae and Charopidae, zoogeography. Chicago, ILL, USA, Field Museum of Natural History. 336 p.