Cornovii (Cornwall) Dumnoniorum (present day Exeter), it is likely that he only listed Roman places, not purely native sites. Of these, there has been speculation that Voliba might be a place in Cornwall and Tamara is assumed to be on the River Tamar, the border between Cornwall and Devon. Ptolemy's list is supplemented by the problematical Ravenna Cosmography, which lists sixteen names before Isca Dumnoniorum (which is listed as "scadum namorum", showing some of the problems of this source) and which have therefore been assumed to be west of Exeter. Several have been identified as most likely in Devon, leaving "purocoronavis" (the
Southern England Football Union and forming their own League. The disagreement that led to the split was over the issue of professional payments, and "broken time" or injury payments. There is a perception that league is the code of rugby played in the north, whilst union is the code played in the south. In most definitions, Southern England includes all the counties on/near the English Channel. In terms of the current ceremonial counties: Despite the general acceptance of these counties as Southern, those that comprise the West Country are occasionally considered mutually exclusive to Southern England. The exact northern extent varies and