The Volume on the Sea Shells covers 1.333 species. 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 cephalopods - is figured on 225 full-color plates with 2.828 images. The Land Shells are represented by 14 families with 749 described species and 345 subspecies. The whole diversity is figured on 186 full-color plates, showing 3.117 images and 363 distribution maps.weiterlesen