The book "Illustrated Index of British Shellfish. Containing Images of All Recent Species" by George Brettingham Sowerby is an indispensable reference for all connoisseurs of marine flora and fauna. This work contains images of all modern species of barnacles that can be found in Great Britain. The illustrations are very detailed and realistic, making it easy to identify each species. The author, George Brettingham Sowerby, is a recognized expert in this field and his works are always marked by great precision and beauty. This book will be an indispensable aid in the study and identification of seashells, and will bring pleasure to all who are interested in nature and marine life.