Scotti is a Roman name for Irish raiders , William Skene Prof of Celtic stufies circa 1850 started the Scotti myth .It has long since been refuted and is no longer taught . Ewan Campbell excavator of Dunadd questions this .He notes three problems 1)Evidence of migrations come from later chronicles ,while earlier texts do not record it. 2)Archaeological evidence does not record this migration and if anything suggests influence flowing from Scotland to Ireland. 3) He suggests that the rise of Dalriada came from an internal change, and may quite reasonably have come from a warrior group crossing from Antrim to Argyll in the 6th C. The fluidity of movement across the Irish Sea in all directiions and all points from Cumbria ,IoM ,Dumfries & Galloway suggets something far more complex than the Skene hypothesis . The Scots i.e. inhabitants of Scotland are like those of most places ,mongrels.