The collector's encyclopedia of shells

"Descriptions are given for each family, often stating the number of genera contained within each, and comparable descriptions are provided for each genus except where these would more or less repeat the details for the parent family. Limited to seashells...Attempts to illustrate in words and pictures the variety of shells living in the world's seas and should enable anyone to identify the family." About this book. Geographical distribution indicated. Color photographs for each shell described. Indexed.