We have already seen that in the case of Palyeri-Bulthara all the evidence points to the name having come from the west.  In the case of Panunga the evidence is weaker, certain of the forms being derivable from either Baniker or Panunga, but with the exception of the Warramunga, and possibly the Tjingili, there are no tribes of whom we can definitely say that they took the name from the Arunta, whereas there are at least four cases where the resemblance is distinctly with the western class names, and several more in which it can more readily be derived from them.  The resemblance between Koomarra and Kiemarra or Kiamba is already considerable, and makes it difficult to estimate the probabilities in most cases; the problem is complicated by the question of prefixes, which will come up for discussion later, and on the whole there appears to be no certain solution of the problem, though the Mayoo seem to have taken over and varied the western form.  In the case of Purula-Burong there appear to be indeterminate cases; six seem to tell in favour of a southern origin; three suggest a western origin; and one word Chupil (f.  Namilpa) seems to be from a different root.

The problem is further complicated by the anomalous class name Yakomari, to which allusion has already been made.  As will be seen later, cha or ja seem to be prefixes, and if that is so we can hardly avoid the conclusion that Yakomari is Koomara or Kiemara.  But in the table it takes the place of Umbitchana, with which it is not even remotely connected philologically; Jamara and its various forms take the place in the table occupied by Koomara among the Arunta when Yakomari holds the eighth place as well as in other cases.  If therefore ku, ja, and ya are simply prefixes, as seems to be the case, we have this class name duplicated among five of the tribe—­the Umbaia, Yookala, Binbinga, Worgaia, Yangarella, and Inchalachee, of which one comes near the top, and two fairly high in the comparative table.  It is however worthy of notice that these six tribes form the eastern group, and are consequently precisely those among which we should, on the hypothesis that the class names originated in the western portion of the area, expect to find the greatest amount of variation and the most numerous anomalies.  Dividing the six tribes into two groups, western and eastern, each of three tribes, we find that the cumulative resemblance of the western group to the Arunta is 132, to the Oolawunga 186; the same figures for the eastern group, more remote from the Oolawunga, but practically equidistant with the western group from the Arunta, are 91 and 112.  This again seems to lend support to the hypothesis of a western origin.  It is perhaps simplest to suppose that the majority of the names came from the west; but that Yakomari, travelling upwards from the south-west, displaced the more usual eighth class name, or perhaps we should say, replaced it, when the eight-class system was adopted, for a name is not likely to have gone out of use when it had once been applied as a designation.