Since a long time this is the first comprehensive book on Antarctic Mollusca. The molluscan diversity in Antarctic waters is particularly large. Bivalvia are represented by 24 different families, comprising 40 genera and over 87 species. The Gastropoda are represented with 49 families, divided over 130 genera with 336 known species. All these species are figures in this book. Large quantities of Mollusca from different Polarstern Expeditions were studied during the compilation of the book. If possible, figures of type specimens are shown. In many cases this type material has never been figured before.