Volume I covers 69 families of Archeo- and Caenogastropods from Nacellidae to Cerithiopsidae, such as Patelliformes, Trochacea, Cypraeacea, Strombacaea, Naticoidae, Epitoniidae, Triviidae, etc. and treating also the tiniest of families in full.
Written in co-operation with 30 world-renowned malacologists such as Bouchet, Beu, Waren, Strong, Monsecour, Kreipl, Kronenberg, Hollmann, Goto, Geiger, Anseeuw, McLean, Eichhorst, Brown, Alf, etc.