I m delighted that you are finally looking at the sources Now we can make some progress You did well to spot the other ref in Ptolemy to the FINNI This confirms my suggestion above that there were 2 groups of FINNI one in N Scandinavia and one somewhere E of the Vistula They may or may not have been related as I explained earlier the same name is not conclusive evidence of ethnic affiliation For example the northern group may have been proto Sami while the southern group may have been proto Finns Anyway we can t show the northern group as their habitat is off the map The question now is where the southern group was located I have to admit that your suggestion of the upper Vistula region is a more natural reading of Ptolemy III 5 However it conflicts with the most natural reading of Tacitus G 46 which is that the VENEDI were between the FENNI and the BASTARNAE and I am using Tacitus as the default position in this map I want to do some more research on this one But one possible compromise is that we could show them in both places with a after the name