you can click on each square to get details. Yellow squares -> "only Fossil species", Red squares -> "Living + Fossil species"
the total number of georeferenced species in this map is: 113429
the total number of squares in this map is: 2528
please note that this is not the complete coverage of Phylum MOLLUSCA
the Data Base is not exaustive and only one specimen per species has been georeferenced
this map is only the graphic summary of the WMSDB Data Base up to now