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Detailing all of the species of land snails to be found in the British Isles, this guide covers topics such as identification, collection and preservation, as well as detailing the internal characters and reproductive systems of the gastropods.
Slugs and snails are part of the great Phylum Mollusca, a group that contains creatures as varied as the fast-moving squid or the sedentary clams, cockles and mussels. The largest group, however, are the gastropods, animals originally with a single foot and a single coiled shell.
The remains of snails in ancient soils and sediments are one of the most important biological indicators of past landscapes, and have attracted study for well over a century. In spite of this, the only English-language textbook was published in 1972 and is long since out of print. Snails provides a comprehensive, up to date reference text on the use of snails as indicators of past environments in Quaternary landscape studies and archaeology. It considers the use of terrestrial and freshwater sub-fossil snail remains as indicators of Late Quaternary (c. last 15,000 years) environmental change and as indicators of past environments and human impacts on the landscape. The volume also demonstrates how an understanding of modern snail ecology can be used to enhance our interpretation of landscape archaeology, and provides a detailed contextual approach to the main types of deposits in which snail remains are found. Davies also puts forward an agenda for future research on the use of snails in archaeological and environmental reconstruction.
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.