Describing and illustrating nearly 300 species of slug and snail found in Britain and North-West Europe this book includes notes on diagnostic characteristics, habitats and range. There is also general information on the whole species group: their structure, reproduction, habits and feeding. Designed to be an indentification guide for use in the field, the book has illustrations and distribution maps which enable anyone to identify the slugs and snails they see. The illustrations portray the intricate beauty of the snail's shells. Distribution maps of the whole of North-West Europe are provided for 276 separate species, and a further 116 maps show the detailed distribution of species within the British Isles.