This View Will Not, However,
Explain All The Facts; For The Character Of The Fauna Of The Timorese
Group Is
Indicated as well by the forms which are absent from it as by
those which it contains, and is by
This kind of evidence shown to be
much more Australian than Indian. No less than twenty-nine genera, all
more or less abundant in Java, and most of which range over a wide
area, are altogether absent; while of the equally diffused Australian
genera only about fourteen are wanting. This would clearly indicate
that there has been, until recently, a wide separation from Java; and
the fact that the islands of Bali and Lombock are small, and are
almost wholly volcanic, and contain a smaller number of modified forms
than the other islands, would point them out as of comparatively
recent origin. A wide arm of the sea probably occupied their place at
the time when Timor was in the closest proximity to Australia; and as
the subterranean fires were slowly piling up the now fertile islands
of Bali and Lombock, the northern shores of Australia would be sinking
beneath the ocean. Some such changes as have been here indicated,
enable us to understand how it happens, that though the birds of this
group are on the whole almost as much Indian as Australian, yet the
species which are peculiar to the group are mostly Australian in
character; and also why such a large number of common Indian forms
which extend through Java to Bali, should not have transmitted a
single representative to the island further east.
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