The term tribe as applied to the aborigines is somewhat vague. It has no reference to numbers, or extent of territory, or political unity. The bond of tribal affinity, that has generally been recognised, is community of language. This is invariably the strongest bond, and involves and implies other factors making for union. There was no chieftain, no organised government. There are no chiefs, in the ordinary application of the word, in Australia. A few families claiming the same territory usually camped and travelled together, sometimes in smaller, sometimes in larger numbers. I characterise such family groups as communities. Dr Howitt's Kaiabara was merely a group like this and not a tribe. He locates it at Widgee, whereas the name I got for the Widgee people was Gīgarbŏra. On his map its locality is placed near the Boyne River, in the Wakka country, where it could not possibly have its home. Its habitat was probably somewhere a little to the south of Widgee. Communities designated by some feature distinguishing either themselves or their country, the term for which was prefixed to the termination -bŏra, were, apparently, more numerous among the Kabi people than in any other tribe. But such communities were constituted by a few families occupying the same small area in common.