Land snails and slugs of the Pacific Northwest

the long version

"Terrestrial mollusks, the second largest phylum in the animal kingdom, are vitally important to the earth's ecology. With the publication of Land Snails and Slugs of the Pacific Northwest, a definitive and comprehensive guide to snails and slugs of Oregon, Washington, Idaho, and western Montana is finally available. Primarily an identification guide, this richly illustrated volume offers complete information on the range of terrestrial mollusk shapes, sizes, and characteristics. It presents an overview of their habitat requirements as well as details of land snail and slug ecology, collection and preservation methods, and biogeography. Land Snails and Slugs of the Pacific Northwest is an essential reference for biologists, horticulturalists, gardeners, and naturalists, and anyone wishing to identify species in the field."--Publisher's website.