There are fifty-seven such species in my list, and besides these there are thirty-five more which, though peculiar to the Timor group, are yet allied to wide-ranging forms.

Deducting these ninety-two species, we have nearly a hundred birds left whose relations with those of other countries we will now consider.
If we first take those species which, as far as we yet know, are absolutely confined to each island, we find, in: Lombock 4 belonging to 2 genera, of which 1 is Australian, 1 Indian.
Flores 12 " 7 " 5 are " 2 " Timor 42 " 20 " 16 are " 4 " The actual number of peculiar species in each island I do not suppose to be at all accurately determined, since the rapidly increasing numbers evidently depend upon the more extensive collections made in Timor than in Flores, and in Flores than in Lombock; but what we can depend more upon, and what is of more special interest, is the greatly increased proportion of Australian forms and decreased proportion of Indian forms, as we go from west to east.

We shall show this in a yet more striking manner by counting the number of species identical with those of Java and Australia respectively in each island, thus: In Lombock.

In Flores.

In Timor.
Javan birds...