The islands of the Samoan archipelago lie about 14 degrees south of the equator in the central Pacific Ocean. Politically, they are divided into two groups: Samoa (formerly Western Samoa), an indepedent state and American Samoa, a territory of the USA. The islands have been formed as a result of complex volcanic activity; they are geologically young. While many of the plants and birds of the Samoan Islands are found elsewhere in the Pacific, many of the snail species are found nowhere else on Earth. This guide is intended to permit identification of mos of the terrestrial snails, and slugs of the Samoan Islands. It is intended to be accessible to the amateur naturalist but also to provide the experienced scientist with a compact resource of information. The guide covers both the native species and the non-native, introduced species, which are generall more frequently encountered, especially at low elevations and in habits disturbed by human activities.

Australia's native land snails are an often-overlooked invertebrate group that forms a significant part of terrestrial biodiversity, with an estimated 2500 species present in Australia today. A Guide to Land Snails of Australia is an overview of Australia's native and introduced land snail faunas, offering a greater understanding of their role in the natural environment. The book presents clear diagnostic features of live snails and their shells, and is richly illustrated with a broad range of Australia's native snail, semi-slug and slug species. Comprehensive coverage is also included of the many exotic species introduced to Australia. In a unique bioregional approach, the reader is taken on a trek through some of Australia's spectacular regional landscapes, highlighting their endemic and special snail faunas. This section is supplemented with key localities where species can be found.