Major areas of diversity of inland water molluscs

This map illustrates the location of areas regarded as globally important for diversity in the bivalve and gastropod molluscs of inland waters, taking into account species richness and local endemism.
Source: compiled using information and expertise provided by the IUCN/SSC Mollusc Specialist Group; first published in WCMC.
WCMC. 1998. Freshwater biodiversity: a preliminary global assessment. WCMC Biodiversity Series No. 8. World Conservation Press, Cambridge.