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
History of Torquay town, where people would often meet. Given its size, the quality of its construction and the lack of development in this area of Torquay until the nineteenth century, it is possible these were the remains of a Roman road, as local historians J.T White and Percy Russell have suggested, although no further excavations have taken place due to the site being under Torbay Road. The existence of a Roman road leading out of Isca Dumnoniorum and towards Western Devon crossing the River Teign at Teignbridge some 14 miles north of Torquay also suggests this road could have been part of