This book is based on collections made by over 50 members and friends of the Jacksonville Shell Club, Inc. over a span of more than 35 years. The work treats 804 species of marine and estuarine molluscs, many reported from the region for the first time and several new to science. All taxa are illustrated, a substantial number in colour. This is a must-have book for identifying marine shells along the coast from Cape Hatteras to Cape Canaveral as well as the shallow waters of the Gulf of Mexico from S.W. Florida to W. Yucatan.