Morphology. 69 
large part peculiar to that island, though related to 
other—and therefore presumably parent—species on 
the neighbouring continent. Now, no less than 200 
species—or nearly half the whole number—are so far 
deficient in wings that they cannot fly. And, if we 
Fic. 9.—Aptervx Australis. Drawn from life in the Zoological 
Gardens, 3 nat.size. The external wing is drawn toa scale in the upper 
part of the cut. The surroundings are supplied from the most iecent 
descriptions. 
disregard the species which are not peculiar to the 
island—that is to say, all the species which likewise 
occur on the neighbouring continent, and therefore, 
as evolutionists conclude, have but recently migrated 
to the island,—we find this very remarkable proportion. 
There are altogether 29 peculiar genera, and out of 
