Thanks for clarifying. I understand now. Yes, in total there are 205 things out of the World Mammal taxonomy without a location tied to them.
This information is difficult to come by in some instances and therefore the data is not complete.
In addition, each thing in this taxonomy cannot be considered near 100% accurate for a list of locations. Again, very hard to come by this information on 11,767 Things.
Many of these things that are missing location info are considered extinct or unsure. But not all.
For Birds of the World, this information is much better attainable. But Mammals of the World??? Not so much.
The whole philosophy of Birder's Diary has always been, to give you the tools to update/maintain any of the info within BD to fit your needs; taxonomic, location, names, sort order, etc. etc. This is all modifiable by the user.
Sorry, hope this helps,