Between Scotland and Ireland Ptolemy places the five islands which he terms the ‘Ebudæ,’ and the island of ‘Monarina;’ but these islands are attached to his map of Ireland, to which country he held them to belong, and their situation is not affected by the great mistake he committed in the direction of Scotland. The most northerly of the five he terms ‘Maleus,’ which is so obviously the island of Mull that it gives us a clue to the situation of the rest, and shows that the islands meant were those south of the point of Ardnamurchan. The remaining four, placed in a line on the same degree of latitude, and lying from west to east, are termed the two ‘Ebudas,’ ‘Engaricenna’ and ‘Epidium.’ The relative situation of the western ‘Ebuda’ towards Ireland corresponds closely with that of Isla, and the two ‘Ebudas’ were probably Isla and Jura. Scarba corresponds with ‘Engaricenna,’ and the more distant Lismore with ‘Epidium.’ These islands all lie in one line from south-west to north-east. ‘Monarina’ corresponds in its position towards Ireland with the island of Arran.[62] Beyond the point of Ardnamurchan the western islands seem to have been comparatively unknown. No islands are mentioned which correspond with the Outer Hebrides, and the island of Skye seems only to have been known by name, as it is probably meant by Ptolemy’s island of ‘Scetis,’ which however he places apparently at random near the north-east promontory of Scotland. On the mainland three points only are noticed,—the mouth of the Itys river, which is probably the river Carron flowing into Loch Carron; the Volsas Bay or Loch, which can only be the great arm of the sea termed Loch Broom; and the mouth of the river ‘Nabarus,’ obviously the Naver; but these points must have apparently been taken from report, as it is difficult otherwise to account for his ignorance of the true position of Skye, and for the absence of all mention of the great headland of Cape Wrath, forming the north-west point of Scotland. Along the east coast he denominates the sea the Germanic Ocean, and along the west, from the Mull of Galloway to Dunnet Head, the Deucaledonian. [Sidenote: The tribes and their towns.]