The present volume covers 1.333 species of marine shells. The percentage of endemism for the marine snails is the highest recognized for any Pacific island group with an estimated endemicity of close to 21%. The whole diversity of the archipelago's sea shells - including polyplacophores, gastropods, bivalves, scaphopods as well as shelled cephalopods - is figured on 225 full-color plates with 2.828 images.weiterlesen